Pitot Static
These are the terms that have the same meaning as Pitot Pressure
What is..
Ram/Total/Impact Pressure
The following describes which Newton Law of Motion?
Main Rotor turns counterclockwise, forcing the nose of the helicopter to turn clockwise. Torque thrust is used to compensate for this action
What is..
Law of Action/Reaction
This is the relationship of drag to resultant relative wind
What is..
Parallel
this is how the pilot compensates for dissymmetry of lift
What is..
Cyclic feathering
This is the force that causes the fuselage to rotate in the opposite direction of the main rotor rotation
What is..
Torque
This is how you determine the mechanical altimeter error in your aircraft
What is..
Set field elevation in the altimeter then compare the kollsman window setting with the current altimeter setting
This flight control changes the angle of incidence on all blades simultaneously
What is..
The Collective
These are the forces are a compromise of rotor blade coning
What is..
Centrifugal Force and Lift
This is the lift formula
what is..
L= CL x 1/2 Rho x Surface Area x Velocity2
This is the rearward tilting of the rotor disk due to dissymmetry of lift in forward flight.
What is..
Blowback
This is the definition of True Airspeed
What is...
Calibrated airspeed corrected for density error (nonstandard pressure and temp)
This is how you would recover from dynamic rollover
What is..
Smooth, moderate reduction of collective lever
This is why blade twisting is necessary
What is..
To distribute lifting forces more evenly along the blade
The chord is measured from leading edge to trailing edge of the airfoil. What can be determined from this?
What is..
Longitudinal dimension of the airfoil
These are the causes of excessive blade coning
What is..
High gross weight
High G maneuvers
Low rotor RPM
Turbulence
These are the three errors in the airspeed indicator
What is..
Instrument- Error caused by friction damage or binding to gears and levers (friction on the instrument)
Density- Error caused by operating in nonstandard atmosphere (temp and pressure changes, air less dense as altitude increases)
Position/Installation: Error caused by the misalignment of the pitot tube with the relative wind and position of the static vents
This is why coning angle is the greatest at the tip of the rotor blade
What is..
Greatest Blade Velocity (Lift is at the Tip)
These are the simultaneous conditions for settling with power
What is..
Vertical or near vertical descent at least 300ft//min
20-100% power
slow forward airspeed (<ETL)
This is how the blade is twisted along the span of the rotor blade
What is..
Higher angle of incidence at the root, lower angle of incidence at the tip (Higher AoI to a Lower AoI)
These are the four methods to overcome translating tendency in single rotor helicopters
What is..
Rigging the cyclic
Tilting the Mast
AFCS
Applying left cyclic
True or Flase:
When flying into an area of warmer than standard temperature, the indicated altitude will be higher than the true altitude
What is..
False. Indicated airspeed will be lower and true airspeed will be higher
These are the symptoms of retreating blade stall
Abnormal 4:1 Vibrations
Pitch-up of the nose
Tendency to roll toward the tilted side
This is how gyroscopic procession is overcome
What is..
Offsetting the linkage in the cyclic pitch control system to create a 90o ahead of the desired action
This is the importance of Center of Pressure
What is..
It is the point along the chord line through which all aerodynamic forces are considered to act
These are the recovery procedures for settling with power
What is..
Increase airspeed with cyclic
Reduce collective as altitude permits
Adjust rotor RPM to normal operating range