Intro

Question 1

Can fit

Answer 1

11 passengers with seats in, minimum of 2 crew

Question 2

Design

Answer 2

Designed for MAX GROSS WEIGHT 22,000lb (*test answer)

11 PAX

2 Pilots to fly minimum

Fully articulated rotor system, 4 blades (flap, feather, lead/lag)

Now has active vibration control system

Cross beam canted tail rotor, gives 2.5% lift on tail at a hover

Main mast is 3* forward canted

39ft/s max at 11.25G’s max for second stage of landing gear. Survivable if level!!

MFD - big TV box displays

Crew chief sits in right forward side of cabin

Gunner sits on left forward side of cabin

53ft 8in main rotor system diameter

14ft 4in stabilator length

Main tank usable fuel is 360 gallons, 180 gallons per tank when gravity fueled, approx 2.3 hrs of flight time.

Aircraft has static wicks on the stabilator - the electromagnetic energy produced by rotating bodies flows to the stabilator by design to be discharged in the air, saving the computers/avionics from static disruption. Metal mesh material in blades and aircraft also protect from excessive lightening damage

Conductive paint used on skin to also aid in static reduction

Read the handout

Question 3

Checks

Answer 3

Before exterior check

• check pubs
• remove covers, tie downs, ground cables

Question 4

Blades

Answer 4

16.3* twist

30* angle sweep

Blade tip 20* negative anhedral droop

24ft 4 inch blade length

24.25in width

Graphite epoxy sparing

Question 5

Avionics compartment (Nose)

Answer 5

2 flight control computer (controls trim)… very important

2 SLAB batteries

2 EGI’s

ESIS battery (standby instruments)

Landing light and searchlight have 1ft clearance… caution when landing, could rip them off.

Nose cone has radar warning sensors, and radar altimeter

Question 6

Doors

Answer 6

Learn how to jettison doors, put seats in, drop seats back, etc.

Question 7

Landing gear

Answer 7

Weight on wheels (WOW) switch

Brake puck indicator (check so you have brakes when landing)

Question 8

Ambient sense port

Answer 8

Above 100kts, ice could form prior to ambient sensing ports indicating such conditions exist

Question 9

Oil

Answer 9

Should be between full and add marks UNLESS flying for 6hrs, then oil level should be at the FULL mark

Question 10

Top

Answer 10

Black strips means you can step on it

Pitot tubes are next to top front cover - airspeed indication does not begin to show until 30-50kts. Take the covers off!

APU - pneumatic power for engine start and cabin heating, electrical power for ground operations in flight, emergencies.

Rotor brake - normally less than 40% NR operation, less than 76% NR for emergencies… use two hands 150-180lbs applied to handle

Blade damper limits blade lead/lag (hunting)

Intermediate gearbox changes the direction and speed of the engine input to the main gearbox

7* cambered tail fairing (helps it fly straight) bottom/trailing edge

Stabilator can be folded for transport, tail has radar warming system, HANDLING QUALITIES improvd

Question 11

Interior

Answer 11

APU hydraulic accumulator - takes 90 seconds to rebuild pressure if discharged (2800 PSI for APU start)

Gust lock - Warning, operating an engine against gust lock is prohibited on rotor brake equipped helicopters… gust lock holds blades in place when stationary in case of high winds

Cargo hook - has 9000lb capacity

Troop seats may be installed in any quantity from one to eleven.

Cargo door release is right next to window emergency release… careful!

Fire indicator - check to make sure enough powder is in.

Question 12

Tail

Answer 12

Both GPSs

Anti-collision lights

Rear avionics compartment

Tail wheel assembly (she k strut, yoke, lock pin actuator)

Question 13

Pilot side

Answer 13

130-250 setting for pilot chairs… use flight weight to set!

Pilot seats stroke in crash sequence