R22 Performance problem/quiz
Looking through my old FAA FI notes, I cam accross this problem which I used to give students to get them to understand various things and get their head in the POH. It may not be 100% accurate but I though i'd post it here and see what answers people come up with. Enjoy.
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R22 Performance Problem
You have to fly from airport A to airport B (a straight line distance of 60 nm), collect some gold bars, and return to airport A.
Airport A
Elevation: 500 feet MSL
Temperature: 21 degrees C
AWOS altimeter setting: 29.52 inches
Airport B
No fuel is available here
Elevation: 7,600 feet MSL
No AWOS
Aircraft
R22 Beta
Cruise speed: 70 kts
Fuel burn: 9 gallons per hour
Basic empty weight: 890 lbs
Pilot weight: 130 lbs
(Assume nil wind)
Each gold bar weighs 11 lbs.
You need to be able to sustain an in ground effect hover at both airports.
How many gold bars can you carry back to airport A, and still remain legal and within all performance limits for the aircraft?