HELICOPTER FINALS Flashcards
instrument markings may include
green, red, yellow ranges for the safe operation of the aircraft
green marking indicates
range of continuous operation
red range indicates
maximum or minimum operation allowed
yellow range indicates
caution or transition area
the weight and loading distribution section of the manufacturer’s RFM contains
certified weights and center of gravity (CG)
have direct and important bearing on the safe operation of the rotorcraft
one or more placards
low RPM means
does not produce sufficient lift
high RPM means
may cause structural damage
rotor RPM limitations have
minimum and maximum values
describes operating limitations on the helicopter’s engine
powerplant limitations
powerplant limitations area includes
rpm range, power limitations, operating temperatures, and fuel and oil requirements
when metal main rotor blades are installed, restrict rotor speed to 319 to 324 RPM (6500 to 6600 Engine RPM) during cruise flight.
rotor limitations
rotor limitations does not apply when what are installed
composite main rotor blades
- intentional flight into severe or extreme turbulence is prohibited
- intentional flight into moderate turbulence is not recommended when the report or forecast is based on aircraft above 12,500 pounds gross weight
- intentional flight into thunderstorms is prohibited
turbulence limitations
sideward flight limits and rearward flight limit are
30 knots
the helicopter can be flown up to VNE with the cabin doors locked in either the closed position or the fully open position.
airspeed limitations
flight above how many KIAS with the cabin doors unlocked position is prohibited
50
AIRSPEED LIMITS R66
- Never-Exceed Airspeed (VNE)
- up to 3000 feet density altitude
- 2200lb TOGW & above: 130 KIAS
- below 2200 lb TOGW: 140 KIAS
- Up to 9000 feet density altitude
Autorotation: 100 KIAS for higher altitudes
R66 LIMITATIONS:
What does red refers to
operating limit.
R66 LIMITATIONS:
What does Red Cross Hatch refers to
power-off VNE
R66 LIMITATIONS:
What does Yellow refers to
precautionary or special operating procedure range
R66 LIMITATIONS:
Green refers to
normal operating procedures
R66 LIMITATIONS describe all
Red = operating limit
Red Cross Hatch = power-off VNE
Yellow = precautionary or special operating procedure range
Green = normal operating procedures
center of gravity limits for the UH-1H Helicopter and instructions for computation of the center of gravity are contained in
weight and balance section of RFM
Center of gravity limits for the UH-1H Helicopter and
instructions for computation of the center of gravity are
contained in the Weight and Balance section of RFM.
• Do not carry external loads if the cg is aft of station 142 prior to
lifting external load
Center of Gravity Limits
The maximum gross weight for the UH-1H helicopter
9500 lbs
The maximum gross weight for towing
9500 lbs
Maximum allowable weight for the cargo hook
4000 lbs
Cargo distribution across the cargo floor
shall not exceed100 pounds per square foot
• Maximum Gross Weight. The maximum gross weight for the UH-1H helicopter is
9500 pounds
• Maximum Gross Weight for Towing. The maximum gross weight for towing is 9500
pounds.
• Cargo Hook Weight Limitations. Maximum allowable weight for the cargo hook is
4000 pounds.
• Weight Distribution Limitations. Cargo distribution over the cargo floor area shall
not exceed100 pounds per square foot.
Weight Limitations
Maximum Gross Weight
2700 lbs (1225 kg)
Minimum Gross Weight
1400 lbs (635 kg)
Maximum per seat including under-seat compartment
300 lbs (136 kg)
Maximum in any under-seat compartment
50 lb (23 kg)
Maximum distributed load
50lb/ft^2 (244 kg/m^2)
Maximum total load
300 lb (136kg)
