R-22 System Discription Flashcards
Main rotor
Articulation - free to teeter and cone, rigid inplane
Diameter- 25ft 2inch
Blade cord - 7.2 inches
Blade twist - -8 degrees
Tip speed @ 100% - 672 feet per minute
Tail rotor
Articulation- free to teeter, rigid inplane
Diameter- 3 feet 6 inches
Blade cord - 4 inches (constant)
Blade twist - 0 degrees
Pre-cone angle - 1 degree 11 minutes
Tip speed @ 100% - 599 feet per minute
Engine limitations
Engine max speed - 2652 RPM (104%)
Cylinder head max temp - 500F (260C)
Oil max temp - 245F (118C)
Oil pressure
- min during idle 25 psi
- min during flight 55 psi
- max during flight 95 psi
- max during start & warm 115 psi
Weight limits
Max gross weight - 1370 lbs
Min gross weight - 920 lbs
Max per seat + baggage compartment 240 lbs
Max in baggage compartment- 50 lbs
Solo weight with doors - 135 lbs
Flight and maneuver limitations
Aerobatic flight maneuvers
Low G cyclic pushovers
Flight prohibited with gov off - except for gov malfunction or emergency flight training.
Flight in known icing conditions
Max operating density altitude - 14000 ft
G- governor
O- outside air temp gauge
A- alternator
L- low rpm horn and light
Left seat belt must be buckled
Operations with doors on or off approved
Fuel - 100LL
Fuel capacity
with bladders - main 18.3g aux 9.7g
Usable- main 16.9g aux 9.4g
Combined- 28g usable 26.3g
without bladders - main 19.8g aux 10.9g
Usable- main 19.2g aux 10.5g
Combined- 30.7 usable 29.7g
Airspeed indicator
Green arc - 50 to 102 KIAS
Red line - 102 KIAS
Rotor tach
Upper red line - 100%
Yellow arc - 104 - 110% special operating range
Yellow arc lower - 90 - 101% precautionary range
60 - 70 % harmonic resonance
Oil temp
Green arc - 75 to 245 degrees Fahrenheit
Red line - 245
Cylinder head temp
Green arc - 200 to 500 degrees Fahrenheit
Red line - 500
Carb air temp
Yellow arc -15 to 5 degrees Celsius
Turbulence
Reduce airspeed to 60 knots or .7vne but no less then 57 knots.
