Other Stuff To Study Flashcards
The 4 fources acting on a helicopter
Lift / weight
Thrust / drag
Low rotor alarm light on at
97%
Required aircraft documentation
A R O W
Airworthyness certificate
Registration - state and federal
Operator manual (POHJ
Weight and balance
Lost - 5 C’s
Climb
Communicate
Confess
Comply
Conserve (53 kts)
Fuel requirements
To first location plus 20 minutes
20 / 30/ 45
3 / 4 / 5 rule
30 minutes
40 miles
5 gallons
Best speed for maximum range?
83 knots
Robinson required equipment- day
GOAL
Governor
OAT
Alternator
Low rotor rpm warning
Robinson required equipment- night
NAIL plus O
Nav lights
Anticollision lights
Instrument lights
Landing lights
Orientation: celestial or ground illumination
Standard empty weight with oil and standard avionics
880 lbs
Max airspeed Vne
102 kts
CG too far forward
-Nose low on pickup
-gets worse with fuel burn
Helicopter weight too low
- can’t build rpm’s on an autorotation
Carburetor icing temperatures
4 to -30 degrees C
When turn on carb heat
OAT - DP < 15 C and
OAT < 30 C
Use enough carb heat to keep the temp gage out of the yellow
Below 18” MAP
What is maximum density altitude?
14,000 ft DA
What are the power off rotor speeds?
90 to 110 rpm
What is the maximum engine rpm?
2652 rpm
What is the maximum seat weight
240 lbs
Night VFR equipment requirement
PALES plus NAILO
Position lights
Anticollision lights
Landing lights (if for hire)
Electrical system (alternator / generator)
Spare fuses
Day VFR requirements
CAMALSFOOTS + GOAL + CHT warning lights
Compass
Altimeter
Manifold pressure gauge
Airspeed indicator
LG position indicator
Seat belt / harness
Fuel gage
Oil pressure
Oil temp
Tach (engine)
Strobe
Low rpm light horn - when?
97%
Max rate of climb speed? By
53 kts
Harmonic resonance speeds
60 to 70 % power
Ground resonance can occur…
With more then 3 blades
Cloning happens at…
Low rpm’s
Manifold pressure
Yellow arc?
Red line?
Yellow arc: 19.6 to 24.1 inches
Red line: 24.1 inch
Carburetor air temperature yellow arc?
Yellow arc: -15 to 5 C
Airspeed green arc?
Red line?
Green arc: 50 to 102 kts
Red line 102 kts
Rotor Tach Green Arc
Green Arc: 101 to 104%