Introduction

Question 1

What are the minimum crew requirements for the CH-47F?

Answer 1

Crew Requirement
(1) Minimum crew required is two Pilots and a Flight Engineer (FE).
(2) Additional crewmembers, a Crew Chief (CE), may be added at the discretion of the commander.

Question 2

What is the floor loading limit for uniformly distributed loads?

Answer 2

The flooring is rated at 300 pounds per square foot for uniformly distributed loads.

Question 3

What is the maximum airspeed with the lower section of the main cabin door open, and locked?

Answer 3

The maximum airspeed allowed with the lower cabin door down and locked is 60 KCAS.

Question 4

What is the maximum airspeed allowed while the lower rescue hatch door is being opened or closed during flight?

Answer 4

It shall not be opened or closed above 90 KCAS.

Question 5

Which main transmission receives the mechanical input from both engine transmissions?

Answer 5

The power from each engine is captured by an Engine Transmission mounted on the front of each engine then engine drive shafts send that power to the Combining Transmission (C-Box).

Question 6

List the weight limitations for each hook.
FWD:
AFT:
CENTER:
TANDEM:

Answer 6

a) The center hook is rated at 26,000 pounds.
b) FWD and AFT cargo hooks are rated at 17,000 pounds individually.
c) If the FWD and AFT hooks are used in tandem, then the rating is 25,000 pounds.

Question 7

Name the three hydraulic systems of the CH-47F?

Answer 7

Utility, NO 1 and NO 2 flight HYD systems

Question 8

The #2 Flight Control Hydraulic Pump is located on the___side of the _transmission?

Answer 8

NO 1 side of aft transmission

Question 9

How many litters can be installed in the cabin for litter operation?

Answer 9

The CH-47F has provisions for up to 24 litters to be installed in the cabin are when conducting medical evacuations.

Question 10

There are____troop seat(s) available and____troop commander’s seat(s).

Answer 10

1,Companionway has a Troop Commander Jump Seat that is collapsible and folds away.
Cabin seating can be arranged to accommodate up to 32 fully equipped ground troops.

Question 11

What is the suggested fuel burn sequence with all three Extended Range Fuel System (ERFS) internal tanks installed?

Answer 11

To maintain the aircraft Center of Gravity (CG) when 3 tanks are installed, tank 3 is used first, then tank 1, then tank 2.

Question 12

What is the purpose of the transformer rectifiers?

Answer 12

To change AC Power to DC Power

Question 13

Where is the maintenance panel located?

Answer 13

The maintenance panel is located on the right side of the cabin in the ramp area.

Question 14

During what conditions can the APU be used in flight?

Answer 14

It may be used to provide hydraulic and electrical power for some in-flight emergencies on a limited basis.

Question 15

The rotor blades can _____, _____, ____, and ____ independently.

Answer 15

Each rotor blade can lead, lag, flap, and feather independently.

Question 16

DAFCS automatically_________________ the aircraft about all axes when turned on.

Answer 16

The Digital Advanced Flight Control System (DAFCS) automatically stabilizes the aircraft about all axes.

The system automatically maintains desired airspeed, altitude, bank angle, and heading.
The system provides precision maneuvering, stability and control in hover and low speed flight.

Question 17

Does one rotor system counteract the torque effect of the other?

Answer 17

Each rotor system counteracts the torque effect of the other.

Question 18

The emergency exit lights will illuminate whenever a loss of power on the _____ occurs or during landings where _____ are exceeded.

Answer 18

Three emergency exit lights, one near each of the three primary emergency exits are provided. They will illuminate whenever a loss of power on the essential bus occurs or during landings where 3-4 G’s are exceeded.

Question 19

Which electrical components mounted on the aft transmission are oil cooled?

Answer 19

Power is produced by two main AC generators. They are mounted on the aft transmission and are cooled and lubricated by the aft transmission main oil system.

Question 20

The seats for the crewmembers in the cabin are located where?

Answer 20

Crew seats for enlisted flight crewmembers are installed at station 120 or to the rear of the Avionics closet and Heater closet.

Question 21

What is the maximum gross weight for the CH-47F Helicopter?

Answer 21

(1) Maximum gross weight is 50,000 pounds.
(2) The aircraft with a crew of 4 and full complement of fuel weighs approximately 31,500 pounds, leaving the capability for approximately 18,500 pounds of cargo.

Question 22

How many first aid kits installed in the helicopter, and where are they located?

Answer 22

(a) Seven aeronautical first aid kits are installed in the helicopter.
1) One is located in the companionway for any passenger sitting there.
2) Six kits are located in the cabin fuselage section, three on each side.
3) One kit is for 5 passengers each.

Question 23

What is the maximum airspeed limit for closing the upper cabin door during flight?

Answer 23

During flight, if the upper cabin door is open, the crewmember is restricted from closing it above 100 Knots Calibrated Airspeed (KCAS). If closed above 100knots the removable panel can separate from the door assembly.