Chapter 2 Catchall Flashcards
How many sensors are in the fire detection system? What are they?
5 sensors
2 in each engine compartment
1 in the APU compartment
What do the fire detector sensors detect?
infrared radiation, not blue light (sunlight)
In the 1 position, what does the FIRE DETR TEST check?
the continuity of the three firewall-mounted detectors (No.1 eng, No.2 eng, and APU)
In the 2 position, what does the FIRE DETR TEST check?
the continuity of the two engine deck-mounted detectors (No. 1 and No. 2 engine)
What are the two fire bottles filled and charged with?
filled with Halon, charged with nitrogen
What does pulling aft on the fire T-handle accomplish?
arms the fire extinguishing system and mechanically places the fuel selector in the OFF position
When both the No.1 engine and APU T-handles have been actuated, which compartment will the fire bottles be discharged in?
into the compartment for the T-handle that was last actuated
When both the No.1 engine and APU T-handles have been actuated, which compartment will the fire bottles be discharged in?
into the compartment for the T-handle that was last actuated
List the 5 things that happen when you pull the APU fire T-handle.
- Removes electrical power from the APU fuel shutoff valve, allowing it to close
- Removes power from the prime boost pump
- Sends a stop signal to the DESU
- Arms the fire extinguisher system
- Positions the extinguisher directional control valve to the APU
What happens when you pull aft on the No.1 or No.2 engine T-handle?
arms the fire extinguishing system and mechanically places the fuel selector in the OFF position
When AC power is not available, which compartment has no fire extinguisher capability?
the No.2 engine compartment
What crash impact forces will activate the fire bottles? And into which compartments?
a multi-axis impact of 10gs will discharge one fire bottle into each engine compartment
What are the two types of rescue hoists? What are their variable speeds?
Breeze-Eastern – 0-215fpm
Lucas-Western – 0-250fpm
What weights are the rescue hoist brake, boom, and hook rated to?
brake = 600 lbs.
boom = 1000 lbs.
hook = 3000 lbs.
How many feet of useable cable does the rescue hoist have? What is different about the first and last 20’ of cable?
the hoist contains 200’ of useable cable
the first and last 20’ are bright orange to warn of end approaching
From the cockpit, the pilots can control the rescue hoist at a fixed speed of what?
100 fpm
In backup control power, the hoist is controlled at a fixed speed of what? What do you lose in backup control?
85 fpm
the limit switches are inoperative in backup control
What function do the limit switches for the rescue hoist serve?
whenever the hoist issuing raised or lowered at a speed exceeding 50 fpm, it will automatically decelerate to 50 fpm approx. 10’ from full-up or 5’ from full-down
On the scratchpad, the burn rate in lbs./hr is an average of over how much time?
the burn rate over the last 6 minutes
Where does the IFF transponder pull current altitude from?
the backup altimeter
The SO station receives the LAWS tone based on which pilot’s DH setting?
the right seat pilot
What does the shimmy damper do?
causes both the tail gear wheels to rotate at the same rate
preventing aircraft tail oscillations during taxi, takeoff, and running landings
What may occur during a single-EGI failure in a coupled hover?
altitude changes of +/- 40’ from what is selected on the HVR ALT potentiometer may occur
ADHEELS system operation
Advanced Helicopter Emergency Egress Lighting System provides lighting to the upper half of the cabin door and SO window.
activated by crash/inversion sensor by any of the following:
- fresh or saltwater immersion
- impact force of 11-13 G’s or greater
- attitude change of 100 +/- 5 deg or greater (pitch or roll)
will remain illuminated for 45 minutes