TOF

Question 1

How is forward flight achieved

Hint - cyclic starts

Answer 1

• cyclic is pushed forward
• CG then moves forward
• this causes the nose to go down
• Flapback then occurs
• You are now in transitional flight at approx 16-24Knots
• you then pull the collective to maintain height
• airflow is then felt over horizontal stabiliser
• this makes the nose down and tail go up
• this inc forward speed so less collective and yaw input is required

Question 2

What is used for directional stability

Answer 2

• Dorsal Finn
• Ventral Fin
• Enlarged tail Finn
• Moving the Finn further back

Question 3

What is used for lateral stability

Answer 3

ASE
FCS
AFCS

Automatic stabilisation equipment
Flight control system
Automatic flight control system

Question 4

What is used for Longitudinal stability

Answer 4

• Synchronised elevators
• horizontal stabilisers
• make stabiliser bigger
• move stabiliser further back

Question 5

What is the purpose of a stabiliser

Answer 5

To prevent follow through affects of flapback

Question 6

What is parasitic power

Answer 6

Power required to overcome FORM DRAG from rotor blade

Question 7

What is Induced power

Answer 7

Power required to induce a flow through a rotor

Question 8

Explain what is meant by advancing angle

Answer 8

Change of pitch blade that makes a POA exert a force
Angular distance between attachment point and centre line (longitudinally)
If adv angle 20 phase lag 90
Operating arm highest is 20 ahead of max pitch 70 degrees

Question 9

How is hover to ground achieved

Answer 9

Collective lowered
Decedent occurs
Ground egg at is fully lowered
Any chances to torque reaction done with yaw pedals

Question 10

What are the methods to overcome torque reaction

Answer 10

1 single rotor with tail rotor
2 tandem rotor
3 Contra rotating rotor
4 NOTAR

Question 11

What is endurance

Answer 11

The period of time and aircraft can stay in flight for a given quantity of fuel

Question 12

What is range

Answer 12

Distance in aeronautical miles that can be given for a quantity of fuel

Question 13

What is vortex ring

Answer 13

Descent into aircrafts own downwash

Question 14

What are the rotor causes of vortex rings

Answer 14

F - Faulty drag dampeners
B- Blade in balance
F - Faulty trackers
L - Lose beatings / bolts

Face
Book
Fat
Losers

Question 15

What are the non rotor causes of vortex rings

Answer 15

T- Taxxing over uneven ground 
U - uneven oleos 
U - uneven tyre pressures 
T - troop deplaning 
M- mishandling by pilot

Question 16

Method of controlling Rrpm

Answer 16

Manual throttle 
Mechanical throttle 
Hydro Mechanical throttle 
ECU 
FADEC