review 8 Flashcards
Rotor RPM tends to ____ during the flare because ____ total rotor thrust causes ___ angles to increase which results in the blade’s center of gravity moving ___the axis of rotation. Coriolis effect then _____ the rotational velocity of the blade.
increase greater coning towards towards
When you initiate a level flare, collective must be _____ and ____ pedal must be applied.
As the helicopter slows down to the halt you must anticipate _____ collective and applying ___pedal to maintain direction
lowered right
raising left
If you allow rotor RPM to decay towards the end of the flare, forward movement of cyclic to level the disc ____ assist in raising the RPM. It will further ____the RPM
WILL NOT /DECAY
Rotor RPM is adversely affected by the stalled region of the disc near the blade ___ because inflow angles are ____ and the total reaction produces a component in the ____rotation.
roots
large
against
The driven region of the disc near the blade ____have ___lift/drag ratio resulting in a component of total reaction acting _____rotation.
tips
poor
against
The driving region is normally found ____and the total reaction provides a component in the ____rotation
in the middle of the blades
in the direction of
IN a vertical autorotation, rate of descent is _____
but it ______
as forward A/S is gained because angles of attack
_____ up to a given airspeed.
high
decreases
increase
When a vertical autorotation is changed into forward- flight, the three regions of the disc move towards the ___side so that the stalled region becomes smaller on the ____
retreating
advancing
When you autorotate at the speed for minimum rate of descent and you realize you are undershooting, you should ______ airspeed
Bring the Rotor RPM to _____of the green
Increase
bottom
When changing autorotation for max endurance to max range the airspeed must be ______
and ROD will
increase
increase
The H/V diagram expands when the helicopter is at ____gross weight _____ altitude and when the atmosphere is ___
greater
increased
moist
