ASSEMBLY & RIGGING - WORKSHEET #3
QUESTIONS AND ANSWERS
Where does a helicopter rotor disc normally stall? ✔️✔️Normally between 270 and 300
degrees position in its rotation.
Is a helicopter rotor system more prone to stall in low flight or in high-speed flight? ✔️✔️High-
speed flight
What is ground effect? ✔️✔️The effect of the surface over which the helicopter is hovering.
What must the pilot of the helicopter do if he needs to carry more weight than the helicopter
can lift while hovering outside of ground effect? ✔️✔️Refer to A/C Specs. Refer to air density
chart and compute for (OGE) and (IGE)
What is done to control the direction of flight of a helicopter? ✔️✔️By tilting the lift produced
by the helicopter
What is the name of the control of a helicopter of that changes the pitch on all the rotor blades
at the same time? ✔️✔️Collective Pitch control
What is the name of the helicopter control that changes the pitch of the rotor blades at a
certain point their rotation? ✔️✔️Cyclic Pitch Control
To which control in a helicopter is the engine throttle connected? ✔️✔️Collective Pitch
Control
, What is the purpose of a synchronized elevator on a helicopter? ✔️✔️To create a download
that increases when the cyclic controls tilt the lift forward.
Why do some helicopters use hydraulically booster control? ✔️✔️So the pilot can control the
pitch of the rotor blades, prevent the vibration from the rotor to feed back into the cockpit.
When helicopter loses engine power, what is the name for the method that the pilot uses to
bring the chopper back to ground safely? ✔️✔️Autorotation
What are the two ways of correcting vibration that deals with the rotor blades? ✔️✔️Blades
Tracking and Blade Balancing
What is the name of the unit that will allow the rotor to spin freely in the event that the engine
quits? ✔️✔️Freewheeling Device
What are the two types of engines that can power a helicopter? ✔️✔️Turbine and Recip
When a helicopter stalls, which way will the nose of the chopper tilt? ✔️✔️Upward
What is normally adjusted to correct an out of track condition that was found on an in flight
tracking check? ✔️✔️Bending one of the blade trim tabs
What are the three methods that may be used to check the track of a helicopter main rotor?
✔️✔️Flag methods, marking Stick ans Strobe Light (VIBREX)
What normally causes a low frequency lateral vibration? ✔️✔️Out balance main rotor
QUESTIONS AND ANSWERS
Where does a helicopter rotor disc normally stall? ✔️✔️Normally between 270 and 300
degrees position in its rotation.
Is a helicopter rotor system more prone to stall in low flight or in high-speed flight? ✔️✔️High-
speed flight
What is ground effect? ✔️✔️The effect of the surface over which the helicopter is hovering.
What must the pilot of the helicopter do if he needs to carry more weight than the helicopter
can lift while hovering outside of ground effect? ✔️✔️Refer to A/C Specs. Refer to air density
chart and compute for (OGE) and (IGE)
What is done to control the direction of flight of a helicopter? ✔️✔️By tilting the lift produced
by the helicopter
What is the name of the control of a helicopter of that changes the pitch on all the rotor blades
at the same time? ✔️✔️Collective Pitch control
What is the name of the helicopter control that changes the pitch of the rotor blades at a
certain point their rotation? ✔️✔️Cyclic Pitch Control
To which control in a helicopter is the engine throttle connected? ✔️✔️Collective Pitch
Control
, What is the purpose of a synchronized elevator on a helicopter? ✔️✔️To create a download
that increases when the cyclic controls tilt the lift forward.
Why do some helicopters use hydraulically booster control? ✔️✔️So the pilot can control the
pitch of the rotor blades, prevent the vibration from the rotor to feed back into the cockpit.
When helicopter loses engine power, what is the name for the method that the pilot uses to
bring the chopper back to ground safely? ✔️✔️Autorotation
What are the two ways of correcting vibration that deals with the rotor blades? ✔️✔️Blades
Tracking and Blade Balancing
What is the name of the unit that will allow the rotor to spin freely in the event that the engine
quits? ✔️✔️Freewheeling Device
What are the two types of engines that can power a helicopter? ✔️✔️Turbine and Recip
When a helicopter stalls, which way will the nose of the chopper tilt? ✔️✔️Upward
What is normally adjusted to correct an out of track condition that was found on an in flight
tracking check? ✔️✔️Bending one of the blade trim tabs
What are the three methods that may be used to check the track of a helicopter main rotor?
✔️✔️Flag methods, marking Stick ans Strobe Light (VIBREX)
What normally causes a low frequency lateral vibration? ✔️✔️Out balance main rotor
