POP QUIZ 1

Question 1

What is ATM?
Draw simple diagram

Answer 1

FEATHERS THE BLADE

Question 2

What is CTM?
Draw simple diagram

Answer 2

FINES THE BLADE ANGLE (DISCS - FLAT AT FRONT)

Question 3

How is a DME arc designed (5)

Answer 3

• 2.5nm either side
• 1000ft clearance (984ft/300m rounded to 100ft above nearest obstacle in primary area)
• In secondary area, same clearance applies on inner edge, which then decreases to 0 on outer edge. (DRAW THIS)
• Min arc radius 7nm
• Angle of interception not >120 degrees
• If Angle of interception >70 deg, 2nm lead radial must be identified.

Question 4

What defines “straight in” for an appch?
(angle & distance)[[[

Answer 4

ANGLE: CAT A&B: any appch where the angle formed by the final appch track and runway centreline does not exceed 30deg of the runway centerline (Other aircraft categories: within 15deg)

DISTANCE: Dist b/t RWY THRS and point at which the final appch track intersects the RWY centerline is not less than 1400m

Question 5

What happens when you pull a fire handle? (10)

Answer 5

1. Prop electrically feathers
2. FCU shutoff valve closed
3. Oil shutoff closed
4. Firewall fuel shutoff valve closed
5. Firewall hydraulic pressure shutoff valve closed
6. Firewall hydraulic suction shutoff valve closed
7. Engine starter circuits de-energised
8. Engine bleed air valves closed
9. Extinguisher agent directional valves positioned
10. Extinguisher agent discharge switches armed

Question 6

What happens when you pull the APU fire handle (FFLEE)

Answer 6

1. fuel shutoff valve closes (LH wingroot)
2. Fuel solenoid valve closes
3. Load control valve closes
4. Extinguisher agent directional valves positioned
5. Extinguisher agent discharge switches armed

Question 7

What are the other forces acting on a prop

Answer 7

• Centrifugal force
• Torque bending force
• Thrust bending force

Question 8

When does the windshear alert go off

Active below?

Answer 8

• 3nm out (5nm SOPs): Advisory Alert only
• 1.5 - 3nm: WINDSHEAR CAUTION
• Within 1.5nm: WINDSHEAR WARNING

ACTIVE BELOW 2300FT

Question 9

Perf manual; factors affecting endurance? (5)

Answer 9

1) 60/90 KVA generators use = degraded perf of the engines. Equivalent Drag = 20
2) H+ conditioning Packs use = degraded perf of the engines. Equivalent Drag = 60
3) Airspeed & altitude: Airspeed may vary by +/- 10kts and Alt by +/- 1000ft without affecting endurance
4) Number of operating engines: Endurance may be increased by shutting down 1/2 engines. (SFC decreases & prop efficiency higher at higher power settings)
5) Bank angle: E.g. if conducting search, increases AoB results in decrease of endurance time for constant TAS

Question 10

When do we do cold weather corrections?

Answer 10

Generally considered applicable in temps below 0 deg C (32 deg F)

Question 11

CTM vs ATM?

Answer 11

CTM in the herc is 20 times greater than ATM, this is bad as the prop will tend to fine (DISC) which results in drag.