R44 II Misc., Acronym's, and Definitions

D.E.C.I.D.E

• Detect
• Estimate
• Choose
• Identify
• Do it
• Evaluate

I.M.S.A.F.E

• Illness
• Medication
• Stress
• Alcohol
• Fatigue
• Eating/Emotion

• Anti-Authority: "don't tell me"
• Impulsivity: "do it quickly"
• Invulnerability: "wont happen to me"
• Macho: "i can do it"
• Resignation: "whats the use"

Crew Resource Management

• Pilot: (use the I.M.S.A.F.E. acronym
• Aircraft: "airworthiness directives"
• EnVironment: weather, terrain, ATC
• External Factors: "why is this flight happening?"

• Airworthiness
• Registration
• Radio (if required)
• Operators manual (POH)
• Weight and Balance

• Annual
• VOR (tested/inspected every 50 days)
• I00 (100) hrs
• Altimeter (checked every 20 months)
• Transponder (checked every 24 months)
• ELT (checked every 12 months)

• Lift
• Weight
• Thrust
• Drag

• Reduced induced drag and vortices
• Increased performance
• Less power required
• Less Area of Attack (AOA) required
• Slower induced flow
• happens at approx. 1 main rotor diameter

• Increased induced flow and wingtip vortices
• Greater Angle of Attack (AOA) required
• Decreased performance
• Greater vortices and disturbed air

When a force is applied to a spinning gyro, the max reaction occurs approx.  90° later in the direction of travel.

the difference in lift between the section of the main rotor blade in clean air and the section in descending air. The result is that the portion in clean air develops more lift

The lift that exists between the advancing half of the rotor disk and the retreating half.

• Rolling moment
• Power pulled up
• Pivot point

• a sudden change in weight with the aircraft
• example - a passenger jumps out of the helicopter

When the tail rotor of a helicopter is exposed to wind forces that prevent it from carrying out its function—that of cancelling the torque produced.

• 210°-330° tail rotor vortex ring state
• 240°-120° weather cocking
• 285°-315° Main Rotor Disc Vortex Interference

when a vortex ring system engulfs the rotor causing severe loss of lift. Essentially, the helicopter descends into its own downwash

• Vertical or nearly vertical decent of at least 300 ft/min
• Low forward airspeed (Less than ETL)
• Rotor system uses some of the available engine power (from 20 to 100 percent)

• a tendency for the retreating blade to stall in forward flight.
• major factor in limiting forward speed

Equipment required for day VFR

• Compass
• Altimeter
• Manifold pressure
• Airspeed indicator
• Seat belt
• Fuel gage
• Oil temperature
• Oil pressure
• Tachometer

Equipment required for night VFR

• Position/Instrument lights
• Anti collision
• Landing lights
• Alternate source of power
• Spare fuse

G.O.A.L.H.

• Governor
• Out side air temp
• Alternator
• Low RPM light/horn
• Hydraulics

• Variation
• Deviation
• Magnetic Dip
• Oscillation
• North Errors
• Acceleration

• Undershoot North
• Overshoot South

• Accelerate North
• Decelerate South

Induced Flow is the airflow which is forced through a rotor disk perpendicular to the disc

When a rotor blade flaps upward, the center of mass of that blade moves closer to the axis of rotation and blade acceleration takes place in order to conserve angular momentum