47' Motor Life Boat Flashcards
(347 cards)
1
Q
Who is the manufacturer of the MLB?
A
Textron Marine and Land Systems of New Orleans, LA.
2
Q
What is the hull length of the MLB?
A
47’ 11”
3
Q
What is the length overall of the MLB?
A
48’ 11” (w/ rubrails)
4
Q
What is the hull beam of the MLB?
A
14’ 0” (w/o rubrails)
5
Q
What is the beam overall of the MLB?
A
15’ 0” (w/ rubrails)
6
Q
What is the freeboard at the bow of the MLB?
A
6’ 8”
7
Q
What is the freeboard at the deck recess of the MLB?
A
2’ 2”
8
Q
What is the aft freeboard of the MLB?
A
7’ 1”
9
Q
What is the draft of the MLB?
A
4’ 6”
10
Q
What is the highest fixed point on the MLB?
A
18’ 6” (Radar antenna)
11
Q
What is the highest unfixed point on the MLB?
A
28’ 4” (HF antenna)
12
Q
What kind of engines are on the MLB?
A
Twin Detroit Diesel Electronically Controlled (DDEC) 6V92TA
13
Q
What is the rated horsepower for the MLB’s engines?
A
435 BHP at 2100 RPM
14
Q
What kind of reduction gears does the MLB have?
A
Reintjes WVS 234 UP, 2:1 Reduction
15
Q
What kind of fuel does the MLB use?
A
Diesel
16
Q
What is the fuel capacity of the MLB?
A
394 GAL
17
Q
How much fuel is usable on the MLB?
A
373 GAL (95%)
18
Q
How is electrical generation provided on the MLB?
A
Dual Alternators
19
Q
What kind of propellers does the MLB have?
A
Fixed 4 Bladed, 28” Diameter x 36” Pitch
20
Q
What is the hoisting condition displacement of the MLB?
A
40,000 LBS
21
Q
What is the potable water capacity of the MLB?
A
5 GAL
22
Q
What is the maximum personnel the MLB can carry?
A
34 (180 LBS Each)
23
Q
What are the maximum seas for the MLB?
A
30’
24
Q
What is the maximum breaking (surf) seas for the MLB?
A
20’
25
What are the maximum winds for the MLB?
50 KTS
26
What is the range of the MLB when operating at cruising RPM in calm water?
200 NM
27
What is the maximum operating distance for the MLB to operate from shore?
50 NM
28
What is the maximum RPM for the MLB?
2100 RPM
29
What is the maximum speed of the MLB?
25 KTS
30
What is the cruising RPM of the MLB?
1850 RPM
31
What is the cruising speed of the MLB?
20 KTS
32
What is the towing capacity of the MLB with the 3 ¼” towline?
150 Displacement Tons
33
What is the towing capacity of the MLB with the 2” towline?
50 Displacement Tons
34
What is the ice breaking capability of the MLB?
Light Surface Ice
35
What is the MLB's superstructure constructed of?
5456 Marine Grade Aluminum
36
What compartments of stations are contained on the superstructure of the MLB?
The superstructure contains the Survivors Compartment, Enclosed Bridge, and Open Steering Station.
37
Where does the superstructure connect to the hull of the MLB?
The superstructure is attached to the hull at Frame 3 and Frame 12.
38
Where does the mast platform connect to the superstructure of the MLB?
The mast platform is attached to the superstructure at Frame 3 and Frame 5.
39
What is the MLB's hull constructed of?
The boat’s hull is made of 5456 Marine Grade Aluminum.
40
What type of hull design does the MLB have?
The hull’s design is deep-V planing hull.
41
How are frames numbered on the MLB?
The frames are numbered from transom to bow.
42
Where is the deepest draft on the MLB?
The deepest draft is 4' 6" at the propeller shaft strut extensions.
43
What type of drive configuration does the MLB have?
The propulsion system is a “U” drive configuration.
44
Where do the propeller shafts penetrate the hull of the MLB?
Each propeller shaft runs aft from the reduction gear, penetrates the hull between Frames 3 and 4, and carries a 28" x 36" four-bladed propeller.
45
What is the bottom plating thickness of the MLB?
5/16"
46
What is the side shell thickness of the MLB?
¼"
47
What is the chine thickness of the MLB?
3/8"
48
What is the keel plate thickness of the MLB?
½"
49
What is the distance between frames on the MLB?
Frames are numbered from transom to bow at roughly 30" intervals (varies somewhat from frame to frame).
50
Where does the survivors compartment sink discharge from on the MLB?
Overboard port side at Frame 5, just below and aft of the recess step.
51
Where are the hull reference points for the bilge pump overboard discharges on the MLB?
Frame 11 Starboard Side (Forward Compartment)
Frame 9 Port Side (Auxiliary Machinery Compartment)
Frame 3 Port and Starboard (Engine Room);
Frame 0 Transom (Lazarette).
52
What is the hull reference point for the depth sounder transducer on the MLB?
Between Frames 7 and 8 to port of the fuel tank.
53
What is the hull reference point for the speed log on the MLB?
Between Frames 7 and 8 to starboard of the fuel tank.
54
What is the hull reference point for the sea suction valves on the MLB?
Between Frames 4 and 5 on both sides of the keel in the engine room.
55
What is the hull reference point for the exhaust ports on the MLB?
Between Frames 1 and 2, port and starboard sides, just above the waterline.
56
What is the hull reference point for the deepest draft on the MLB?
Between Frames 1 and 2, just aft of the tow post (at the shaft strut extensions).
57
What is the hull reference point for the propellers on the MLB?
Directly under Frame 1.
58
What is the hull reference point for the rudder posts on the MLB?
Penetrate the hull between Frame 1 and the transom.
59
What are the seven main watertight compartments on the MLB?
Lazarette: Transom to Frame 1.
Engine Room: Frame 1 to Frame 5.
Survivors Compartment: Frame 5 to Frame 8.
Auxiliary Machinery Compartment: Frame 8 to Frame 10.
Enclosed Bridge: Frame 8 to Frame 10.
Forward Compartment: Frame 10 to Frame 15.
Forward Peak: Frame 15 to Bow.
60
What frames compartmentalize the lazarette on the MLB?
Transom to Frame 1.
61
What frames compartmentalize the engine room on the MLB?
Frame 1 to Frame 5.
62
What frames compartmentalize the survivors compartment on the MLB?
Frame 5 to Frame 8.
63
What frames compartmentalize the auxiliary machinery compartment on the MLB?
Frame 8 to Frame 10.
64
What frames compartmentalize the enclosed bridge on the MLB?
Frame 8 to Frame 10.
65
What frames compartmentalize the forward compartment on the MLB?
Frame 10 to Frame 15.
66
What frames compartmentalize the forward peak on the MLB?
Frame 15 to Bow.
67
What are the four secondary watertight compartments that aid in self-righting the craft in event of a capsizing?
Forward Deck Lockers
Mast Platform
Open Bridge Consoles
Buoyancy Chamber
68
How is the MLB's forward peak accessed?
The Forward Peak, or forepeak, is a buoyancy chamber accessed through a 20" QAWTH at Bulkhead 15.
69
How is the MLB's forward peak ventilated?
The compartment is naturally ventilated with a 2" check vent.
70
How do you check the MLB's forward peak for flooding?
A drain plug is provided on the port side bilge accessed from the Forward Compartment.
71
How is the forward compartment accessed on the MLB?
A quick-acting watertight escape hatch is in the weather deck at Frame 15 to starboard of the centerline.
72
Where is the T handle to access the forward compartment located?
A T-handle wrench, stowed in the port forward deck locker, is used to open and close the hatch from above.
73
What is in the port storage box in the forward compartment of the MLB?
5 Gallons of 2104
1 Gallon of Tellus T-15
1 Damage Control Kit
3 Sets of Hearing Protection
74
What is in the starboard storage box in the forward compartment of the MLB?
```
4 Wool Blankets
2 Pillows,
1 Boat Pyrotechnics Kit
1 Bell with a Clapper
1 Mouth-Operated Fog Horn
1 Hand-Held Spotlight
10 blood-borne pathogen kits (Sizes: 3XXL, 3XL, 2L, 2M).
```
75
Where is the portable marine head located on the MLB?
In the forward compartment to the to port of the watertight door at Frame 10.
76
How many adult Type III PFD's are in the forward compartment of the MLB?
There are four adult type III PFDs.
77
How many boat crew survival vests are in the forward compartment of the MLB?
There are four Boat Crew Survival Vests.
78
How many boat crew safety belts are on the MLB and where are they stored?
Four boat crew safety belts are secured on Bulkhead 15 or kept readily accessible secured to the handrails in the survivors compartment .
79
Where is the bilge pump in the forward compartment of the MLB?
A 33 GPM electric bilge pump is starboard of the keel at Frame 10.
80
How is the forward compartment of the MLB ventilated?
The compartment is naturally vented. The forward dorade vent is between Frames 14 and 15 on the port side overhead. The aft vent is on the port side of Bulkhead 10.
81
How many adult and child Type I PFD's are there in the forward compartment of the MLB and where are they stored?
There are five adult and five child type I PFDs secured on brackets on the starboard side of the hatch on Bulkhead 10.
82
Where is the shore breaker power panel on the MLB?
In the auxiliary machinery compartment, the shore power main circuit breaker panel is mounted on the port shell
breaker power plating at Frame 9.
83
Where is the bilge pump in the auxiliary machinery compartment on the MLB?
A 33 GPM electric bilge pump is at Frame 8 to starboard of the keel.
84
Where does the auxiliary machinery space bilge pump discharge from on the MLB?
The pump’s overboard discharge is on the port side shell plating between Frames 8 and 9.
85
Where are the service and start batteries located on the MLB?
In the auxiliary machinery compartment between bulkheads 8 and 10 directly over the keel.
86
What kind of batteries are the service and start batteries on the MLB?
12-volt 8D Cell Marine Batteries
87
How are the service and start batteries connected on the MLB?
The 12-volt 8D cell marine batteries connected in series to provide 24 volts and are housed in individual battery boxes.
88
Where are the battery controls and parallel switches located on the MLB?
Battery control and parallel switches are located in the Survivors compartment space on Bulkhead 8.
89
Where is the raw water valve, strainer and pumps for the HVAC system located on the MLB?
The raw water valve, strainer and pumps for the HVAC system are mounted at Frame 9, to starboard of the battery box in the auxiliary machinery compartment.
90
Where is the Emergency Window Release System (EWRS) and Horn Compressor located on the MLB?
The EWRS and Horn Compressor system is mounted on a pedestal on the Emergency outboard starboard side of Bulkhead 8.
91
How many seats are available in the survivors compartment of the MLB?
The compartment has seating for five survivors, three on the port side and seating on the starboard.
92
Where is the stokes littler stored on the MLB?
A stokes litter is secured in the survivors compartment on the port side above the windows.
93
Where is the rescue swimmer pack stored on the MLB?
A rescue swimmer’s pack is attached to the stokes litter.in the survivors compartment.
94
What is stowed in the rescue swimmer pack?
A swimmer’s mask, fins and safety harness.
95
What is a FAT kit?
First Aid Trauma kit (FAT)
96
Where is the FAT kit stored on the MLB?
A FAT kit is mounted on Bulkhead 5 in the survivors compartment over the watertight door to the engine room.
97
How many sets or hearing protection are in the survivors compartment in the MLB?
Two sets of muff style hearing protection are hung on bulkhead 5 directly over the watertight door to the engine room.
98
How many fire extinguishers are stored in the survivors compartment of the MLB?
A 5-lb CO2 fire extinguisher is on bulkhead 5 to port of the aft survivors compartment watertight door. A 10-lb PKP fire extinguisher is on the starboard shelf at Frame 6.
99
Where is the CO2 mechanical actuator located on the MLB?
CO2 mechanical actuator is located in the survivors compartment to the starboard side of the engine room door on bulkhead 5.
100
Where is the 30-second discharge delay CO2 control head located on the MLB?
The 30-second discharge delay control head with manual activation lever is located in the survivors compartment on the starboard side bulkhead aft of the survivors seats.
101
Where is the CO2 system light panel located on the MLB?
The CO2 System Light Panel is located in the survivors compartment above the watertight door leading to the engine room.
102
Where are the service and start system battery cutout switches and the battery parallel switch located on the MLB?
On bulkhead 8 in the survivors compartment, to the port of the watertight door to the auxiliary machinery compartment, are service and start system battery cutout switches and the battery parallel switch.
103
Where are the emergency fuel cut out valves located in the survivors compartment of the MLB?
Remote fuel shut-off pull cables are located directly between the ladder leading to the aft deck and the watertight door leading to the engine room.
104
Where is the tow reel breaker and rest switches located on the MLB?
The tow reel breaker and reset switches are mounted on the starboard bulkhead above the aft window in the survivors compartment.
105
Where is the grounding wand located on the MLB?
A high voltage discharge probe (grounding wand) is mounted in the survivors compartment on the starboard bulkhead above the forward window.
106
Where is the fuel tank located on the MLB?
The diesel fuel tank is below the removable deck in the survivors compartment centered on the keel between bulkheads 5 and 8.
107
Where are baffles installed in the MLB's fuel tank?
Baffles installed in the tank at frames 6 and 7 control
| free surface effect.
108
How many inspection covers are on the MLB's fuel tank?
Three inspection covers evenly spaced across the top
| length give access to the tank.
109
Where are the reduction gears located on the MLB?
A Reintjes reduction gear is on each side of the fuel tank between frames 6 and 7.
110
How are the reduction gears coupled on the MLB?
The reduction gear is coupled to the engine by a Cardan shaft.
111
What is the size of the propeller shafts on the MLB?
2.5"
112
Where do the propeller shafts enter the stern tubes on the MLB?
The shafts enter the stern tubes at bulkhead 5.
113
Where do the propeller shafts penetrate the hull on the MLB?
The propeller shafts exit the hull between frames 3 and 4 in the engine room.
114
Where is the survivors compartment bilge pump located on the MLB?
A 33 GPM electric bilge pump is in each reduction gear space at bulkhead 5 next to the fuel tank.
115
Where are the 6V92TA engines located on the MLB?
Two Detroit Diesel 6V92TA DDEC right-hand rotating engines are mounted facing aft from frame 3 to Frame 4.
116
What type of alternators and generators does the MLB have?
Each engine drives a 28-volt 220-amp Balmar alternator and a 5-kW generator.
117
What do the alternators power on the MLB?
The alternator produces the boats electrical power.
118
What do the generators power on the MLB?
The generator provides power for the HVAC system.
119
Where are the engine raw water valves located on the MLB?
Each raw water valve is located on the opposite side of the keel from the engine it serves, between frames 4 and 5, below the ladder.
120
Where are the engine sea strainers located on the MLB?
Port and starboard sea strainers are between frames 4 and 5 on the port and starboard inboard girders.
121
Where are the engine room emergency fuel cut out valves located on the MLB?
Fuel oil is drawn from the tank through two emergency fuel cut out valves. The valves are located between Frames 4 and 5 on either side of the keel.
122
What are the primary fuel filters rated for on the MLB?
The primary fuel filters are 30 micron, and are located between frames 3 and 4 on the port and starboard inboard girders.
123
What are the secondary fuel filters rated for on the MLB?
The secondary fuel filters are located inboard of both engines with a micron rating of less than 10.
124
What DDEC systems are mounted directly to the engines of the MLB?
A DDEC Marine Interface Module (MIM) and Engine Control Module (ECM) are mounted on both port and starboard engines.
125
What is the gear driven hydraulic pump rated for?
6.5 GPM
126
How many bilge pumps are in the MLB's engine room?
Two 33 GPM electric bilge pumps provide engine room dewatering.
127
What is the standpipe in the engine room used for?
A standpipe (equipped with a strainer) is located inboard of the starboard girder, forward of Bulkhead 1, is used with the CG-P6 dewatering pump for alternative engine room dewatering.
128
How many exhaust mufflers are on the MLB?
There are two water-cooled exhaust mufflers located on Bulkhead 1 outboard of the port and starboard girders.
129
Why are the MLB's exhaust mufflers cross-connected?
The mufflers are cross-connected to provide exhaust discharge when one port is under water.
130
How can the MLB's exhaust mufflers be isolated?
They can be isolated with the butterfly valve for single engine operations.
131
Where does the MLB's engine exhaust discharge?
Exhaust discharges through the shell plating between frames 1 and 2 just above the water line.
132
How are the port and starboard tiller arms connected on the MLB?
A tie rod attachment connects the port and starboard tiller arms.
133
How is the lazarette ventilated on the MLB?
The compartment is naturally ventilated using a 2” check vent.
134
How many console areas are in the enclosed bridge?
There are two console areas in the Enclosed Bridge.
135
What does the upper console in the enclosed bridge of the MLB house?
The upper console houses the Electronic Display Modules (EDMs), engine start switches and dimmer control switch.
136
How many parts does the lower console in the enclosed bridge have?
The lower console is divided into two parts (A Main Section and a Smaller Sub Console).
137
What does the main section of the lower console in the enclosed bridge house?
The main section contains navigation, communications and engine control equipment including the autopilot.
138
What does the sub-console of the lower console in the enclosed bridge house?
A smaller sub-console sits directly on top of the main unit and houses all windshield wiper and heater controls.
139
Where is the engine start/stop and throttle control system located in the enclosed bridge of the MLB?
An engine start/stop and throttle control system is mounted on the centerline between the port and starboard helm chairs.
140
Where are the separate emergency engine (manual override) backup panel and controls located in the enclosed bridge of the MLB?
Separate emergency engine (manual override) backup panel and controls are mounted directly above the throttles.
141
Where are the emergency air shut down pull cables located in the enclosed bridge of the MLB?
Emergency air shut down pull cables are mounted on the port and starboard sides of the engine throttle control console.
142
Where is the search light control located in the enclosed bridge of the MLB?
The search light control is mounted aft of the engine throttles.
143
Where is the CO2 fire fighting system activation handle located in the enclosed bridge of the MLB?
The CO2 fire fighting system activation handle is located aft and below the engine controls.
144
How many windows are on the enclosed bridge of the MLB?
The Enclosed Bridge has 12 windows.
145
How many windows face forward on the MLB?
The four forward facing windows are heated glass with controls in the lower sub-console.
146
How many windows are associated with the EWRS on the MLB?
Two spring-loaded hinged windows (port and starboard)
| are aft of the stationary windows.
147
When does the EWRS activate on the MLB?
The Emergency Window Release System (EWRS) which automatically releases the windows in the event that the enclosed bridge is flooded in a rollover situation to allow free transfer of water.
148
How can the EWRS be manually deployed on the MLB?
They can also be manually released using the CO2 pull handle mounted on the overhead directly above the throttle control station.
149
Where is the chart table located in the enclosed bridge of the MLB?
A chart table is on the port side adjacent to the forward console.
150
Where is the HVAC located in the enclosed bridge of the MLB?
A self-contained HVAC unit is located on the overhead above the starboard bolster seat.
151
Where is the HVAC control unit mounted in the enclosed bridge of the MLB?
Heating or cooling is controlled with the HVAC Control Unit mounted on the starboard bulkhead.
152
How does the bilge alarm system on the MLB know whether the boat is moored or underway?
A selector switch for moored and underway is located on the bilge pump alarm panel in the enclosed bridge.
153
What are the three control modes for the bilge pumps on the bilge pump alarm panel on the MLB?
Manual, automatic or off may be selected for any pump.
154
Where is the HF radio located in the enclosed bridge of the MLB?
The HF Radio is mounted on the starboard bulkhead at Frame 9.
155
How many fire extinguishers are in the enclosed bridge of the MLB?
Two
156
What kind of fire extinguishers are located in the enclosed bridge of the MLB?
A 5-lb CO2 is on the port side of Bulkhead 8 next to the navigation light panel.
A 10-lb PKP is on the starboard side superstructure just in front of Bulkhead 8.
157
How many steering stations are on the open bridge of the MLB?
The Open Bridge has port and starboard steering stations.
158
How do you steer the MLB from the port steering station on the open bridge of the MLB?
The port steering station has an electric follow-up jog lever for helm control.
159
How do you steer the MLB from the starboard steering station on the open bridge of the MLB?
The starboard steering station has a steering wheel for helm control.
160
How much seating is available on the open bridge of the MLB?
There is seating for four crew members: a helm chair in front of each steering station and two jump seats behind the port helm chair. All seating has integral safety belts.
161
How can the MLB's mast tower can be lowered for maintenance or low clearances?
The mast tower can be lowered for maintenance or low
| clearances by using a block and tackle rig attached to the tow bit.
162
Where are the paired bitts located on the MLB?
The bitts are located on both port and starboard from forward to aft between Frames 16 and 17, at Frame 12, between Frames 8 and 9, and between Frames 2 and 3.
163
Where are the chocks located on the MLB?
Chocks are located on both port and starboard sides at Frame 14, between Frames 9 and 10, between Frames 3 and 4, and between Frames 1 and 2.
164
Where is the tow bit located on the MLB?
The tow bitt is just aft of Frame 2 centered over the keel between the engine room removal covers on the aft deck.
165
How tall is the tow bitt on the MLB?
The tow bitt is 30" high and the working surface shall be polished to prevent chafing.
166
How many tow reels are on the MLB?
Two tow reels are recessed on the port aft corner of the superstructure.
167
What size is the tow line on the upper towing reel?
The upper reel carries 300' of 2¼" DBN line.
168
What size is the tow line on the lower towing reel?
The lower reel carries 900' of 3¼" DBN line.
169
Which tow reel on the MLB is electronically controlled?
An electric motor is mounted internally in the lower reel only.
170
Where is the control switch for the electronically controlled lower tow reel located?
The control switch is above the upper reel.
171
Where is the breaker switch and power reset button for the electronically controlled lower tow reel located?
A breaker switch and power reset button are located inside the aft survivors compartment door.
172
Where is the hand crank for the tow reels located on the MLB?
A hand crank is secured to the port side of the tow line
| reels.
173
Which tow reel on the MLB can utilize the hand crank?
It can be used on either reel.
174
What size are the ring buoys on the MLB?
30"
175
Where are the ring buoys located on the MLB?
Thirty-inch ring buoys are mounted port and starboard at Frame 6 on the sides of the open bridge handrails.
176
What size are the boat hooks on the MLB?
Eight-Foot Telescopic
177
Where are the boat hooks located on the MLB?
Eight-foot telescopic aluminum boat hooks with hull numbers and skiff hook attachments are mounted on both port and starboard sides of the superstructure.
178
How high is the aft buoyancy chamber from the main deck on the MLB?
A buoyancy chamber at the stern of the boat is 30" high from the main deck to the top of the taffrail.
179
Where is the CG-P6 dewatering pump located on the MLB?
A recess on the starboard side houses the CG-P6 dewatering pump can.
180
How many deck boxes are located in the aft buoyancy chamber of the MLB?
The aft buoyancy chamber is divided into three watertight deck boxes.
181
How many suction standpipes are there on the MLB?
Two suction standpipes for the CG-P6 dewatering pump are on the forward face of the starboard hatch on either side.
182
What is the outboard suction standpipe used for on the MLB?
The outboard standpipe is used for raw water suction when fire fighting or for cooling of the deck.
183
What is the inboard suction standpipe used for on the MLB?
The inboard standpipe is used for engine room dewatering.
184
What is stored in the port aft deck box of the MLB?
```
200' of 2¼" DBN drogue/grapnel line;
Two drogues (small/large);
One roll of marlin;
Two heaving lines;
And chafing gear/assorted shackles as required.
```
185
What is stored in the center aft deck box of the MLB?
```
DBN bridle (sized as required);
Wire/kevlar bridle as required;
Block and tackle for mast lowering;
Skiff hook with pendent;
And a #4 grapnel hook.
```
186
What is stored in the starboard aft deck box of the MLB?
One 6' by 3" suction hose with sized deck box camlock fitting attached for connecting the CG-P6 dewatering pump to each standpipe.
One 50' discharge hose with a fire fighting nozzle.
187
What kind of anchor does the MLB have?
A 19-lb Fortress anchor (Danforth type) with a 2-lb mud fluke attached.
188
Where is the anchor stored on the MLB?
The Port Deck Locker
189
What size is the anchor line on the MLB?
300' of 2¼" DBN
190
What kind of anchor chain does the MLB use?
Nine feet of 3/8" stainless steel chain is attached to the anchor and anchor line using 3/8" stainless steel shackles and swivel moused as ground tackle.
191
Where is the T-handle for accessing the forward compartment located?
A T-handle for opening the Forward Compartment watertight scuttle is also located in the port deck locker in a bracket.
192
What is stored in the starboard deck locker of the MLB?
The starboard deck locker contains fenders and alongside lines as required.
193
What is the minimum amount of alongside lines for the MLB?
Eight Alongside Lines
194
What is the minimum amount of fenders for the MLB?
Four Fenders
195
What is the CG-P6 pump's fire fighting capability limited to?
The CG-P6 fire fighting capability is intended to only provide personnel protection or to aid in removing survivors from a burning platform.
196
What kind of engines does the MLB have?
The 47FT MLB is equipped with two Detroit Diesel Electronically-Controlled (DDEC) 6-cylinder, 2-stroke, turbo-charged, after-cooled marine diesel engines to DDEC 6V92TA.
197
What is the DDEC 6V92TA rated horsepower?
The engine rating is 435 horsepower at 2100 RPM.
198
What is the coolant capacity for the DDEC 6V92TA?
12 Gallons
199
What is the lube oil capacity for the DDEC 6V92TA?
5.5 Gallons
200
What kind of lube oil does the DDEC 6V92TA use?
40-Weight 2104D
201
How are the engines and reduction gears coupled on the MLB?
A Cardan shaft (drive shaft) couples each engine to its reduction gear.
202
What is the purpose of the Vulcan coupling on the flywheel of the DDEC 6V92TA?
This coupling is made of a rubber material and accepts the torsional twist applied to the Cardan shaft when the engine accelerates.
203
What bulkhead is penetrated by the Cardan shaft to join the engines and reduction gears?
The Cardan shaft passes through a water restrictive rubber seal clamped on each side of Bulkhead 5.
204
What kind of reduction gears does the MLB utilize?
Reintjes WVS 234 UP
205
Where are the Reintjes WVS 234 UP reduction gears located on the MLB?
Reintjes WVS 234 UP Marine Reduction gears located in the Survivors compartment to port and starboard of the fuel tank between Frames 6 and 7.
206
Where are the input and output flanges on a "U" drive unit?
The gear is a “U” drive unit where the output and input flanges are on the same side of the gear and parallel.
207
What is the reduction ratio for the Reintjes WVS 234 UP Marine Reduction gears?
The reduction ratio is 2:1 in forward and reverse.
208
What type of lube oil does the Reintjes WVS 234 UP Marine Reduction gears use?
The gear uses 7.1 gallons of 30-weight lubricating oil MILSPEC 2104D or E) for clutch-apply pressure and lubrication.
209
What temperatures does the temperature regulating valve and gear oil cooler maintain on the Reintjes WVS 234 UP Marine Reduction gears?
A temperature regulating valve and gear oil cooler maintain oil temperatures between 140-176°F.
210
Where does the gear oil cooler receive water from to cool the Reintjes WVS 234 UP Marine Reduction gears?
The cooler is supplied with raw water from the engine raw water system.
211
What is the normal disengaged clutch pressure for the Reintjes WVS 234 UP Marine Reduction gears?
Normal disengaged pressure is 58 to 66 PSI.
212
What is the normal clutch-applied pressure for the Reintjes WVS 234 UP Marine Reduction gears?
Normal clutch-applied pressure is 230 to 290 PSI.
213
How is the "come-home" device engaged?
It is engaged by mechanically locking the clutch together with set screws.
214
What is the diameter of the MLB's propeller shafts?
Each propeller shaft is 2½" inches in diameter.
215
What are the MLB's propeller shafts constructed of?
CRES AQUAMET 22
216
Where do the propeller shafts penetrate the hull on the MLB?
The prop shafts penetrate the hull between Frames 3 and 4 in the engine room.
217
What encompasses the propeller shafts where they penetrate the hull?
A PSS drip-less shaft seal encompasses the shaft.
218
What is installed between the strut and prop on each shaft on the MLB?
There are Spur line cutters installed between the strut and prop on each shaft facing inboard.
219
How many blades are on the propellers of the MLB?
4
220
What is the diameter of the propellers on the MLB?
28"
221
What is the pitch of the propellers on the MLB?
36"
222
How many major components comprise the DDEC?
7
223
What are ECM's?
Electronic Control Modules
224
How many ECM's are there on the MLB?
2
225
Where are the ECM's located on the MLB?
There are two ECMs; they are mounted directly on each engine.
226
What do the ECM's do?
Each ECM contains the microprocessor that continuously monitors and controls engine performance and calibration.
227
What operating information do the ECM's provide?
The ECM receives input from sensors located on the engine that tell it operating information such as turbo boost, timing, oil and fuel temperature/pressure and coolant level/temperature.
228
What functions do the ECM's provide?
```
Engine governing;
Cold start fueling and timing;
Engine protection and diagnostics;
Injection timing;
Rated speed and power;
Sensor calibrations;
Smoke control.
```
229
What are EUI's?
Electronic Unit Injectors
230
What do EUI's do?
The EUI replace the traditional fuel injectors with an electronically controlled solenoid valve and straight plunger on each injector.
231
What are MIM's?
Manufacturers / Marine Interface Modules
232
Where are MIM's located on the MLB?
MIMs are mounted on both engines.
233
What do MIM's do?
MIMs mounted on both engines provide the interface between the boat’s control systems and the ECM.
234
What is an additional feature that the MIM's utilize that can assist the boat engineer or service personnel?
In addition, the MIM features a diagnostic connector port which allows the engineer or service personnel to connect the DDEC diagnostic reader to the engine for troubleshooting.
235
What is an ERIM?
Engine Room Interface Module
236
Where is the ERIM located on the MLB?
The ERIM is located in the Auxiliary Machinery Compartment.
237
What does the ERIM do?
It is the central processor of the control systems (throttles) on the boat.
238
How does the ERIM work?
It accepts signals from the three control stations on the boat and commands the engines (through the MIMs and ECMs) to operate at the proper speed.
239
What does the ERIM do with the clutch actuators?
The ERIM also directs the clutch actuators to control direction of propulsion.
240
What are CSIM's?
Control Station Interface Modules
241
How many CSIM's are on the MLB?
There are three CSIMs on the 47FT MLB.
242
Where are the CSIM's located on the MLB?
All three are located in the Enclosed Bridge; two in the overhead for the Open Bridge throttles and one in the main console, port side under lower kick plate.
243
What do the CSIM's do?
The CSIM receives signals from the throttles and the throttle control buttons.
244
What do the CSIM's do with the signals received from the throttles and throttle control buttons?
It sends this information encoded into command signals to the ERIM.
245
What are EDM's?
Electronic Display Modules
246
Where are the EDM's located on the MLB?
The EDMs are the LCD displays mounted in the Enclosed Bridge and the Open Bridge.
247
How many EDM's are there on the MLB?
There is one EDM for each engine at each location.
248
Where do the EDM's received their information?
They receive information via a connection to the CSIM.
249
What do the EDM's display?
```
Engine RPMs;
Oil Pressure;
Engine Temperature;
Transmission Oil Pressure and Temperature; Instantaneous Fuel Consumption;
Total engine hours.
```
250
What are EGIM's?
Electronic Gear Interface Modules
251
Where are the EGIM's located on the MLB?
The EGIMs are located in the Auxiliary Machinery Compartment underneath the ERIM.
252
What do the EGIM's do?
They take electronic signals from the ERIM and actuate the reduction gear clutches.
253
What are the seven major components of the DDEC system?
Electronic Control Modules (ECMs)
Electronic Unit Injectors (EUIs)
Manufacturers / Marine Interface Modules (MIMs)
Engine Room Interface Module (ERIM)
Control Station Interface Modules (CSIMs)
Electronic Display Modules (EDMs)
Electronic Gear Interface Modules (EGIMs)
254
How many raw water systems are there on the MLB?
There are two separate raw water systems on the 47FT MLB.
255
What does the primary raw water system do on the MLB?
The primary system provides cooling for various elements of the propulsion system.
256
What do the separate raw water system do on the MLB?
A separate raw water system serves the boat’s HVAC system.
257
What does the raw water system cool the operating temperature for the fuel oil cooler to?
Maintains fuel oil temperatures below 90°F.
258
What does the raw water system do for the engine exhaust system?
Provides cooling and quieting for engine exhaust.
259
How big are the duplex strainers for the raw water system on the MLB?
The raw water flows through a 4" duplex strainer on the port and starboard inboard girders between Frames 4 and 5.
260
What is the flow rating for the raw water pumps on the MLB?
From the sea strainer, water flows to the raw water pump that has a flow rating of 67 GPM.
261
Where does raw water discharge from the MLB?
In the water-cooled muffler, raw water cools and quiets the exhaust and is discharged over the side via the exhaust ports.
262
Why are the mufflers cross connected on the MLB?
The mufflers are cross-connected to prevent back pressure if one exhaust port is submerged.
263
What is installed in the exhaust system for single engine operations?
An isolation valve is installed in the cross-connect to prevent internal condensation in the event of single engine operation.
264
What kind of cooling system does the Detroit Diesel 6V92TA have?
The Detroit Diesel 6V92TA has a 10-12 gallon capacity closed-circuit cooling system.
265
What kind of coolant does the Detroit Diesel 6V92TA use?
It is comprised of a 50/50 mixture of Power Cool and distilled water.
266
What does the engine coolant system cool lube oil temperatures to?
It maintains the lubricating oil at 200° to 250°F.
267
What is the thermostat temperature rating for the MLB?
170°F
268
What temperature does the after cooler reduce engine intake temperature to?
Charged air from the blower and turbocharger passes across the after-cooler, which reduces air temperature to 100°F, depending on cleanliness.
269
What is the normal operating pressure range for the lube oil system on the MLB?
The normal operating range is 49-70 PSI.
270
What is the lube oil capacity for the Detroit Diesel 6V92TA?
5.5 Gallons
271
What type of lube oil does the Detroit Diesel 6V92TA use?
40-Weight Lubricating Oil.
272
How does the scavenging oil pump on the Detroit Diesel 6V92TA lube oil system work?
A scavenging-type oil pump is mounted on the two forward main bearing caps and is driven by the gear train from the forward end of the crankshaft.
273
When does the spring-loaded pressure relief valve in the Detroit Diesel 6V92TA's lube oil pump release lube oil back into the oil pan?
This valve discharges excess oil to the oil pan when the pressure exceeds 105 PSI.
274
When does the pressure regulator valve in the vertical oil gallery open?
The regulator valve opens when the oil pressure at the valve exceeds 62 PSI and discharges oil back to the oil pan.
275
Are the Detroit Diesel 6V92TA engines two stroke or four stroke engines?
The engines are two-stroke marine diesels.
276
How much pressure do the blowers produce on the 6V92TA engines?
About 5 PSI
277
How much pressure do the turbochargers produce on the 6V92TA engines?
20 PSI or More
278
What three subsystems is the MLB's fuel oil system divided into?
Fuel Tank
Fuel Oil Supply
Fuel Oil Return
279
What is the MLB's fuel oil tank capacity at 100% full?
394 Gallons
280
What is the MLB's fuel oil tank capacity at 95% full?
373 Gallons
281
Where does the fuel oil system take suction from in the MLB's fuel tank?
Suction is drawn at a point 2" from the bottom of the tank at Frame 6.
282
What does the MLB's fuel oil system have to prevent a loss of suction in the event of a capsize?
The fuel pickup has a bonnet to provide suction in the event that the boat capsizes.
283
Where are baffles installed in the MLB's fuel tank?
Baffles are installed at Frames 6 and 7 to control free surface effect.
284
Where are the emergency fuel cutout valves located on the MLB?
The emergency fuel cutout valves are spring-loaded and are actuated by pull cables from the starboard side of the engine room door in the Survivors compartment.
285
What is the MLB's fuel oil separator micron rating?
The fuel oil separator is a spin-on type filter (P/N 3201 PUL) with 30 micron rating.
286
What is the purpose of the MLB's fuel oil separator?
It is considered a duplex filter in that it removes particulates and separates water.
287
Where is the MLB's fuel oil pump driven from?
The fuel pump is gear-driven off the front of the blower.
288
How is the MLB's fuel oil system protected from over pressurization?
The pump has an internal relief valve that opens at 62 PSI to protect the pump from over pressurization.
289
How much fuel flows back into the MLB's fuel tank because of the fuel oil return?
80% of the fuel flow returns back to the tank.
290
What temperature does the fuel cooler reduce the fuel oil to?
Fuel cools below 90°F to prevent a loss of power due to heat buildup.
291
What kind of steering system does the MLB have?
The 47FT MLB uses a Manual Servo Steering System that interacts with a power assist system.
292
How much fluid does the MLB's hydraulic steering system use?
The steering system uses 2 gallons of Tellus T-15 hydraulic fluid.
293
What compartments does the HVAC system service on the MLB?
The HVAC system heats, cools, and ventilates the Survivors Compartment and the Enclosed Bridge.
294
Where is the HVAC control unit in the Enclosed Bridge of the MLB?
The control unit for the Enclosed Bridge HVAC system is located on the starboard bulkhead of the Enclosed Bridge.
295
Where is the HVAC control unit in the Survivors Compartment of the MLB?
The control unit for the Survivors Compartment is located just inboard of the ladder leading to the aft deck.
296
How is the MLB's HVAC system cooled?
The HVAC system is cooled by a raw water system.
297
What compartments on the MLB are naturally ventilated?
Every compartment on the MLB is naturally ventilated.
298
What are the two sources for AC power on the MLB?
Shore Power: The shore power receptacle is located on the forward weather deck deckhouse bulkhead.
Underway Power: Two engine-driven AC, 5-kW generators provide the necessary AC power to the inverters for the HVAC systems.
299
How is DC power supplied to the MLB?
DC power is supplied to the MLB by four engine-driven, 220-amp Balmar alternators and two banks of 8D marine type AGM batteries.
300
How are the batteries installed on the MLB?
The batteries installed on the 47FT MLB consist of two banks of 12-volt 8D marine type AGM batteries mounted in a drip proof laminated fiberglass box with a vented top to prevent accumulation of charging gasses.
301
How many batteries are located in the two battery banks on the MLB?
Each bank consists of two 12-volt 8D marine type AGM batteries.
302
How are the batteries connected on the MLB?
The batteries are connected in series to provide 24 volts terminal voltage.
303
How many power panels are in the Auxiliary Machinery Compartment of the MLB?
Three Power Panels
304
What types of power panels are in the Auxiliary Machinery Compartment of the MLB?
120 - VAC
24 - Volt
12 - Volt
305
What breakers are housed on the 120 - VAC panel?
2 Victron inverters (40 AMP)
2 receptacles (15 AMP each) with ground fault protection
HVAC units (40 AMP each)
Engine hot starts (30 AMP each).
306
What are the two methods to operate the EWRS?
Automatic or Manual
307
What windows does the EWRS open?
The port and starboard aft corner windows on the Enclosed Bridge.
308
How does the EWRS automatically activate?
Water sensors are mounted on the port and starboard bulkheads near the overhead and trigger opening of the aft corner windows.
309
How is the EWRS charged to allow the release?
An EWRS air compressor and reservoir assembly mounted in the Auxiliary Machinery Compartment provides charge air to the release system.
310
How can the EWRS be activated in the event that the air compressor and reservoir assembly fail?
A backup CO2 actuator is mounted on the overhead at the centerline in the Enclosed Bridge.
311
How can the EWRS be tested?
The release system can be tested periodically by pressing the EWRS release test switch mounted just forward of the starboard window.
312
How is the EWRS re-armed after testing or deploying?
The system can be re-armed by resetting the test switch, pressing the reset button next to each window, closing the windows and securing the slide locks.
313
How many bottles are there for the installed CO2 firefighting system?
Two 25-lb Bottles
314
Where are the two 25-lb CO2 bottles for the installed firefighting system located?
The Auxiliary Machinery Compartment to starboard of the watertight door on Bulkhead 10.
315
How many locations can the installed CO2 firefighting system be activated from?
Three
316
Where can the installed CO2 firefighting system be activated from?
Enclosed Bridge;
Survivors Compartment;
Activation lever at the CO2 bottle control head.
317
How long does the CO2 discharge delay retard the system from releasing CO2 into the space?
The discharge delay cylinder delays release of CO2 into the engine room compartment for 30 seconds.
318
How many bilge pumps are there on the MLB?
Seven
319
What are the bilge pumps rated for on the MLB?
33 GPM
320
Where is the float switch set on the MLB's bilge pumps, and why is it set at that level?
The level switch is above the height of the bilge pump to avoid discharging oil floating on the bilge water.
321
What are the MLB's bilge pumps intended to be used for?
The installed bilge pump system is an EMERGENCY system only. It is not intended for general cleanup use.
322
What may occur if you manually energize the bilge pumps on the MLB?
To place a bilge pump selector switch in manual position may result in a discharge of oil.
323
How high does the water level in the bilge need to be to activate the bilge pumps automatically?
It will require approximately 10" of water in a bilge space to activate the bilge pumps when set in the automatic mode.
324
How many flooding alarm sensors are on the MLB?
Six
325
Where are the flooding alarm sensors located on the MLB?
The MLB is outfitted with six bilge flooding alarm sensors located near each 33 GPM submersible bilge pump, with the exception of the forward engine room bilge pump.
326
How high does the water level in the bilge need to be to activate the flooding alarm sensors on the MLB?
The sensors are mounted approximately 5" below the bilge pump activation sensors and will activate the 47FT
MLB’s alarm prior to activation of the bilge pumps.
327
What must be done on the alarm before getting underway or mooring the MLB?
You must use the selector switch and have it set on either "moored" or "underway" to sounds the appropriate sound signal.
328
What sound signal will the MLB produce if it is moored and gets a high water alarm in the bilge?
In the event of flooding, the “Moored” mode will sound the horn continuously.
329
What sound signal will the MLB produce if it is underway and gets a high water alarm in the bilge?
In the event of flooding, the “Underway” mode will sound the horn for approximately 8 seconds and then silence.
330
How many sound signals are programmed into the Raymarine 430 Loudhailer?
The loudhailer has eight programmable foghorn signals to be used when operating in conditions of low visibility.
331
How long does it take for the MLB to reach full speed?
The average minimum time for the 47FT MLB to accelerate to full speed is 40 seconds, covering a distance of 0.2 nautical miles.
332
How long does a coasting deceleration take for the MLB to complete?
A coasting deceleration (from full speed to DIW) requires an average of one minute and ten seconds (covering a
distance of approximately 400').
333
How long does a crash stop take for the MLB to complete?
In an extreme situation, the boat can be stopped rapidly by reversing the throttles from full ahead to full astern. This “crash stop” deceleration (both throttles astern full) requires an average of nine seconds, covering a distance of approximately 150'.
334
How much of a delay is there between the DDEC system engaging the engines ahead or astern?
There is a momentary (1½–2½ second) delay in response when inputting DDEC throttle commands.
335
What happens if you are steering with the MLB's jog levers and you let it go?
Upon releasing the jog lever, it will return to the straight up position and the rudder will return to amidships.
336
Do the jog levers on the MLB provide backup manual steering?
The jog levers may be used for any boat evolution, but be aware that they do not provide backup manual steering as does the helm.
337
How long does a full power, full rudder, 180 degree turn take to complete on the MLB?
A full power, full rudder, 180-degree turn takes over
| 20 seconds to complete.
338
When is the MLB prone to being caught on the hardchine?
While operating the stern to the seas >6’ and RPMs >1800, the boat is prone to being caught on the hardchine.
339
What happens when the MLB gets caught on its hardchine?
Being caught on the hardchine is best described as the boat suddenly heeling over 50-80 degrees on a false keel.
340
What is the best corrective action to bring the MLB back to its true keel when it gets caught on its hardchine?
The coxswain’s corrective action shall be to immediately reduce power to return the boat onto the true keel.
341
What is the height of eye from the open steering station on the MLB?
About 14'
342
What is the maximum towing capacity the Operational Commander can authorize for the MLB?
Under particularly favorable conditions, the boat may be
| safely able to tow vessels up to 200 tons with permission from the Operational Commander.
343
When will the “Code 410, Overload Warning" show on the MLB?
When the engine(s) have been in an overload condition for more than one minute, the EDM(s) will give an audible alarm and display “Code 410, Overload Warning.”
344
How long does the “Code 410, Overload Warning" show on the DDEC system?
This warning will be displayed for two minutes.
345
What will happen if no action was taken after two minutes of getting a “Code 410, Overload Warning" on the DDEC system?
If no action is taken for two minutes, the EDM(s) will then display “Code 58, Torque Overload,” and the engine
output will automatically ramp down to the maximum allowed power curve.
346
When receiving a “Code 410, Overload Warning," how do you override the system the automatic ramp down?
If operations necessitate, the coxswain may override this automatic ramp down by pressing and releasing the “Overload” button on the station control panel.
347
What happens when you get a “Code 410, Overload Warning" and you press the "Overload" button on the control station panel?
This can be pressed anytime during an overload situation and will allow an additional two minutes of operation above the maximum power curve.
