R44

Question 1

Power plant limitations

Engine

Answer 1

Engine:

- One Lycoming Model IO-540-AE1A5

Question 2

POWERPLANT LIMITATIONS

Operating limitations

Answer 2

• engine maximum speed: 2718 RPM (102%)
• cylinder head max temp: 500 degrees F 260C
• oil maximum temp: 245 degrees F 118C
  Oil pressure:
• minimum during idle 25 psi
• minimum during flight 55 psi
• maximum during flight 95 psi
• maximum during start & warm up 115 psi
  Oil quantity:
• minimum for take off 7 qt

Question 3

Weight limits

Answer 3

• maximum gross weight 2500 lbs
• minimum gross weight 1600 lbs
• max per seat 300 lbs including baggage
• maximum in any baggage compartment 50 lbs
• minimum solo pilot plus forward baggage weight with all doors is 150 lbs unless weight and balance computation shows CG is within limits

Question 4

Flight and maneuver limitations

Answer 4

• maximum operating density altitude 14,000ft
• maximum operating altitude 9000ft AGL to allow landing within 5 minutes incase of Fire
• alternator, RPM governor, low rotor RPM warning system, OAT gauge, and hydraulic control system must be operational for dispatch
• solo from right seat only
• doors off operation up to 100 KIAS approved with any or all doors removed

Question 5

Fuel capacity

Answer 5

Bladders
- main tank: 30.5 gallons 29.5 usable gallons
- aux tank: 17.2 gallons 17.0 usable gallons
- combined capacity: 47.7 gallons 46.5 usable
Without bladders
- main: 31.6g 30.6 usable
- aux: 18.5g 18.3 usable
- combined: 50.1g 48.9 usable

Question 6

Air speeds for safe operation

Answer 6

• takeoff & climbs 60 KIAS
• maximum rate of climb 55 KIAS
• maximum range 100 KIAS
• landing approach 60 KIAS
• autorotation 70 KIAS

Question 7

ROTOR SPEED LIMITS
Power on max and minimum
Power off max and minimum

Answer 7

Power on
- maximum: 102% actual RPM 408
- minimum: 101% actual RPM 404
Power off
- maximum: 108% actual RPM 432
- minimum: 90% actual RPM 360

Question 8

Airspeed limits

Answer 8

VNE

• 2200lbs TOGW and below: 130 kias
• over 2200 TOGW: 120 KIAS
• autorotation: 100 KIAS