TD-104

Question 1

Define dynamic rollover.

Answer 1

(FM 3-04.203, 1-63)

• A helicopter is susceptible to a lateral-rolling tendency

Question 2

What is the critical angle?

Answer 2

(FM 3-04.203, 1-64)

• The dynamic angle varies based on the rate of the rolling motion of the helicopter. The greater the rolling motion the earlier (less bank angle) the critical angle will be exceeded. If the dynamic rollover angle is exceeded, momentum will carry the helicopter through the static rollover angle, regardless of corrections by the aviator.

Question 3

What are the certian factors that can influence dynamic rollover?

Answer 3

(FTG p.48)

• Right Skid Down
• Left Pedal Inputs
• Lateral Loading
• Crosswind
• High Roll Rates

Question 4

What are the physical factors that may contribute to dynamic rollover?

Answer 4

(FTG p.48)

• Main Rotor Thrust
• Tail Rotor Thrust
• Crosswind Component
• Ground Surface
• Sloped landing area
• Low Fuel Condition (CG)

Question 5

What is the recommended control input if the onset of dynamic rollover is encountered?

Answer 5

(FTG p.48)

• Smooth and moderate collective reduction is recommended if the onset of dynamic rollover is encountered.

Question 6

What is Loss of Tail Rotor Effectiveness?

Answer 6

(FTG p.50)

• LTE is the occurrence of an un-commanded and rapid right yaw rate which does not subside of its own accord and which if not quickly reacted to can result in a loss of aircraft control.

Question 7

What are the factors which may be present that can significantly influence the severity of the onset of LTE?

Answer 7

(FTG p.50)

• Gross weight and Density Altitude
• Low indicated airspeed (below ETL)
• Power droop

Question 8

What are the N1 Gas Producer limits for the OH-58A/C?

Answer 8

(OP SUP p.5-6)

• 105% Maximum
• 62 to 105% Normal Operation

Above 105 to 106 Percent Permissiable for 15 Seconds