R44-II POH Section 2 (Limitations) Flashcards
What does the red cross-hatch indicate on the airspeed indicator?
Power-off Vne
POH 2-1
What is Vne when @ 2200lb TOGW and below?
130 KIAS
POH 2-1
What is Vne when above 2200lb TOGW?
120 KIAS
POH 2-1
What is Vne for autorotation?
100 KIAS
POH 2-1
What are the additional airspeed limits?
- 100 KIAS max at power above MCP
- 100 KIAS max with any combination of doors removed
POH 2-1
POH 2-1
What are the Power On rotor speed limits?
101% (404 RPM)
to
102% (408 RPM)
POH 2-2
What are the Power Off rotor speed limits?
90% (360 RPM)
to
108% (432 RPM)
POH 2-2
What are the engine speed limits?
Max Continuous - 102% (2718 RPM)
Max Transient - 105% (2800 RPM)
POH 2-2
What is the cylinder head max temperature?
500 degrees F
POH 2-2
What is the max oil temperature?
245 degrees F
POH 2-2
What are the minimum and maximum oil pressures?
During Flight
Minimum 55 PSI
Maximum 95 PSI
Start and Warm Up (or idle)
Minimum 25 PSI
Maximum 115 PSI
POH 2-2
What is the minimum oil quantity required for takeoff?
7 qt
POH 2-2
What are the weight limits?
Max Gross Weight 2500 lb
Min Gross Weight 1500 lb
Max per seat including baggage compartment 300 lb
Max per baggage compartment 50 lb
POH 2-3
Where is the reference datum?
100 inches forward of main rotor shaft centerline
POH 2-3
What are the flight and maneuver limitations?
A functioning Headset must be worn by each pilot
Operation up to 100 KIAS approved with any combination of Doors removed. All seat belts must be buckled and loose items in cabin must be properly secured during doors-off flight
Governor off flight prohibited except for in-flight system malfunction or emergency procedures training
Low G cyclic pushovers prohibited
Aerobatic flight prohibited
Minimum Crew is one pilot in the right front seat. A flight instructor may also operate as PIC from the left seat. Solo flights from right seat only
Flight in known Icing conditions prohibited
Max operating density Altitude 14,000 ft, Max operating altitude 9000 ft AGL to allow landing within 5 minutes in case of fire
Low rotor RPM warning system, alternator, RPM governor, oAT gauge, and hydraulic control system must be operational for dispatch
Forward left Seat belt must be buckled
POH 2-5
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What are the approved fuel grades?
100 (green)
100LL (blue)
100VLL (blue)
B95/130 (amber)
True or False?
Fuel tanks without bladders are allowed to be in service.
False
POH 2-6, R44 SB-78B
What is the capacity of the main fuel tank?
30.5 gal of which 29.5 is usable
POH 2-6
What is the capacity of the auxilliary fuel tank?
17.2 gal of which 17 is usuable
POH 2-6
What does the green arc indicate on the airspeed indicator?
0-110 KIAS, normal operating range
POH 2-7
What does the yellow arc indicate on the airspeed indicator?
110-130 KIAS
(operational range in smooth air)
POH 2-7
What does the red line indicate on the airspeed indicator?
130 KIAS
Vne at or below 2200 lbs
POH 2-7
What does the lower red line on the rotor tach indicate?
90%
Min allowable rotor speed
POH 2-7
What does the green arc on the rotor tach indicate?
90%-108%
Operational rotor speed range
POH 2-7
What does the upper red line on the rotor tach indicate?
108%
Max allowable rotor speed
POH 2-7
What does the lower red line on the engine tach indicate?
101%
Min allowable engine speed
POH 2-7
What does the green arc on the engine tach indicate?
101-102%
Operational engine speed range
POH 2-7
What does the upper red line on the engine tach indicate?
102%
Max allowable engine speed
POH 2-7
What does the lower red line indicate on the oil pressure gauge?
25 PSI
Minimum allowable oil pressure for idle
POH 2-7
What does the lower yellow arc indicate on the oil pressure gauge?
25-55 PSI
Lower allowable oil pressure range for start and warm up
POH 2-7
What does the green arc indicate on the oil pressure gauge?
55-95 PSI
Allowable oil pressure range for flight
POH 2-7
What does the upper yellow arc indicate on the oil pressure gauge?
95-115 PSI
Upper allowable oil pressure range for start and warm up
POH 2-7
What does the upper red line indicate on the oil pressure gauge?
115 PSI
Max allowable oil pressure during start and warm up
POH 2-7
What does the green arc indicate on the oil temp gauge?
75-245 degrees F
Normal operating temp
POH 2-7
What does the red line indicate on the oil temp gauge?
245 degrees F
Max allowable operating oil temp
POH 2-7
What does the green arc indicate on the cylinder head temp gauge?
200-500 degrees F
Normal operating temp
POH 2-8
What does the red line indicate on the cylinder head temp gauge?
500 degrees F
Max allowable cylinder head temp
POH 2-9
What does the green arc indicate on the manifold pressure gauge?
15.0 to 23.3 in. Hg
POH 2-9
What does the yellow arc indicate on the manifold pressure gauge?
19.1 to 26.1 in. Hg
What does the red line indicate on the manifold pressure gauge?
26.1 Hg
