BE76 Flashcards
(89 cards)
1
Q
Vy
A
85kts
2
Q
Vr
A
71kts
3
Q
Max oil pressure - red line
A
100psi
4
Q
Minimum oil pressure
A
25psi
5
Q
Fuel usable quantity
A
100 USG
378 Litres
6
Q
Cylinder head temp
A
500 degrees Fahrenheit
7
Q
Max oil temp
A
245 degrees Fahrenheit
8
Q
Max continuous RPM
A
2700rpm
9
Q
Max crosswind limit
A
25kts
10
Q
Single engine approach speed
A
85kts
11
Q
Vref
A
75kts normal
80kts flapless
12
Q
Vat
A
75/76kts
13
Q
Centre of gravity at 3250lbs
A
106.6 inches aft of datum
14
Q
Centre of gravity at 3900lbs
A
110.6 inches aft of datum
15
Q
Vs0
A
60kts
16
Q
Glide airspeed
A
95kts
17
Q
Vs1
A
70kts
18
Q
Vfe
A
120kts
110kts ( full flap)
19
Q
Vle
A
140kts
20
Q
Manual gear extension speed
A
100kts
21
Q
Vne
A
194kts
22
Q
Vx
A
71kts
23
Q
Vyse
A
85kts
24
Q
Vxse
A
85kts
25
Vtoss
75kts (book)
85kts (taught)
26
Vy
85kts
27
Vno
154kts
28
MTOW
3900lbs
29
MRW
3916lbs
30
Vmca
65kts
31
Va
132kts
32
MLW
3900lbs
33
Turbulent operating speed 3800lbs
135kts
34
Max baggage compartment weight
200lbs
35
Stages of flap
4
Up- 10- 20- Down
36
How is the landing gear system controlled?
It’s electrical-hydraulic mechanical system - electric motor drives a hydraulic pump which operates actuators mechanically raising and lowering the landing gear
37
Max tyre pressures
Main wheel and nose wheel - 38psi
38
Suction normal operating range (green arc)
4.3 - 5.9 inches Hg
39
Minimum fuel in each wing before takeoff
9 US Gallons
12 US Gallons - BCFT ops manual
40
What are the 3 main effects of lowering the flap in flight?
Nose lowers
Airspeed reduces
Stall speed reduces
41
What is the approximate reduction in climb performance with one engine out?
80% reduction
42
What is the propeller to engine drive ratio?
Direct drive 1:1
43
On a constant speed prop- RPM is increased by increase in power or nose down attitude, what happens to the blade angle?
The CSU moves the propeller to a coarser pitch- to absorb the extra energy
Flyweights spin outwards lifting the landed valve and allow oil to drain away from hub, retreating the piston
44
Power is decreased what happens to the propeller blade angle?
It is moved to a finer pitch via the CSU - fly weights spin inwards allowing oil into propeller hub pushing on the piston
45
What does the electrical system consist of?
A 28v DC system
Two engine driven alternators and two voltage regulators (regulate load sharing and maintain 28v)
A 24v battery
Two main bus bars supplied by each alternator
46
What is the blade angle in the fully feathered position?
81 degrees (+- 1 degree)
47
Where is the C of G reference datum?
Located 129.37 inches forward of centre wing spar jack points
48
Propeller diameter
76 inches
| cut off permitted at 74 inches
49
How many inches aft of datum is the Leading Edge MAC?
99.08 inches aft of datum
50
MZFW
3500lbs
51
How many inches aft of datum is the Leading Edge MAC?
99.08 inches aft of datum
52
Minimum oil capacity for departure?
6 US Quartz for departure
53
Max oil capacity
8 US Quartz
54
Where is the C of G reference datum?
Located 129.37 inches forward of centre of wing spar jack points
55
Manifold Pressure Normal Operating Range ( in.Hg)
15-29.6 in.Hg
56
Maximum sideslip duration
30 seconds
57
During prop feather checks, why should we avoid RPM dropping below 1000RPM?
Below 1000RPM the centrifugal latches engage to feather the propeller. To make sure the propeller feathers past the gates.we dint want it to go this far.
58
With landing gear retraction, after how long with continuous hydraulic pump operation will the time relay disconnect the pump motor from its electrical supply?
30 seconds
59
After engine start, oil pressure must rise to what pressure (psi) within how many seconds?
Above red radial and into normal operating range (60-100psi) within 30 seconds (25psi minimum)
60
Min/max Fuel pressures (psi)
Min 0.5 psi
| Max 8.0 psi
61
Which cylinders are connected to the engine priming system?
Cylinders 1,2 and 4 for each engine
62
What in volts and amperes is the electrical power supplied to the bus bars by the alternators?
28V
| 55 Amperes supplied by each alternator
63
What is the aft C of G limit with landing gear extended at MAUW?
117.5 inches aft of datum
64
In what flap configuration will port wing stall sensing vane trigger if aircraft approaches a stall?
When the flaps are above 16 degrees ( 16 degrees or less)
65
In what flap configuration will the starboard wing stalling sense vane trigger an alert if the aircraft approaches a stall?
When the wing flaps are below 16 degrees ( 16 degrees or more)
66
What devices are fitted between the battery bus bar and main left and right busbars?
One main isolating circuit breaker/ isolator each
67
What is the maximum alternator load capacity and at what engine RPM?
80% at approx 2300RPM
68
What performance class is the BE76?
Class B
69
How is the alternate static air source operated?
Pushing lever to ON position (lower side well adjacent P1) open valve- used when normal static has been obstructed
70
Following an engine failure, the cause of which cannot be determined, at what point would you consider using the cross feed capability?
After dead engine secured and live engine checked- phase 2 checks
71
Assuming all mandatory inspection requirements what is the life expectancy of basic wing structure (hours)
20,000 flight hours
72
If the Janitrol heater trips out in flight, can it be reset?
No, it can only be reset on ground by an engineer
73
Self excitation of alternators load
Linked to engine RPM , feature not come on until approx 1200-1400RPM with load capability of approx 50%
74
Describe the system to prevent inadvertent gear retraction on the ground
Safety pressure switch measures dynamic pressure.
| When dynamic pressure is between 59-63kts deactivates the hydraulic pressure pump
75
Describe the Janitrol heating system on the BE76
The Janitrol heater is a fuel combustion air heater located on front right of aircraft nose. It is used for cabin heating and windshield defrosting
Uses approx 2/3 USG per hour from right wing fuel system
76
What are the maximum positive and negative load factors at MAUW?
Positive 2.0G ( flaps down)
3.8G (flaps up)
Negative -1.52G ( flaps up)
77
What is the minimum height of occupants in either of the front seats?
4’ 7” to be able to access rudder pedals with chair forward
78
What is the checklist drill for Crossfeed?
```
Aux pump (live engine) - On
Fuel cock (dead engine)- Off
Fuel cock (live engine) - Crossfeed ( level flight, cruise only)
Aux pump (dead engine) - Off
```
From Phase 2 checks
79
How is the engine oil pressure boosted to operate the CSU propeller system?
A supplementary pump is found in the CSU unit- liked gear driven
80
What gases are produced by a lead-acid battery when it is being charged?
Hydrogen gas can be produced when the lead acid battery is being charged
81
Below what RPM will the propeller fine pitch latches engage?
Below 700-800RPM
82
What types of fuel can be used and appropriate colours?
100LL Blue Avgas
| 100 Green Avgas
83
When we check the propeller function of the ground during engine run ups, what indications might we expect to see on the instruments?
MP increase as Prop RPM is reduced- MP relationship with torque
Coarse blade - torques goes up - RPM reduced - slight variation of MP maybe.
84
What would be the significance of the red gear ‘in transit’ light remains on following gear retraction after takeoff, what subsequent actions might be required?
This could indicate the gear is in an intermediate position- potentially unretracted and not locked and safe - recycle gear
85
How is the undercarriage held in the up/ retracted position?
Hydraulic pressure- it is held in place via hydraulic pressure which is maintained in the actuator
86
How is the undercarriage locked in the down/extended position?
Retraction of the actuator moves the gear A frame - gear locks at elbow of gear brace into overcentered position
87
What does the fuel system consist of?
Each fuel tank (51.5 USG capacity)
Fuel flow -
Tank-fuel strainer-fuel selector- check valve- engine driver fuel pump -carburettor
88
What is the emergency descent checkist drill?
Props - 2700rpm
Throttles- Idle
Airspeed- 140kts
Undercarriage- Down
89
With regard to the red ‘gear in transit’ warning light, what is the significance of this light illuminating momentarily in flight?
It signifies a drop in system pressure, re-pressurisation occurs, if it keeps happening it could signify a leak.
Pull gear motor CB to avoid overheating
