Maneuvers and Principles of Flight

Question 1

Discuss loss of single engine’s % effect on climb performance

Answer 1

50% Loss of Power

Approximately 80-90% Loss of Climb Performance

Question 2

Vmc Certification Criteria

Answer 2

Under 14 CFR Part 23 small airplane certification rules, the specific set of circumstances required to determine Vmc are as follows:

• Maximum available takeoff power
• Propeller windmilling in takeoff pitch (or feathered, if equipped with
autofeather)
• Most unfavorable (aft-most) center of gravity and maximum takeoff
weight (or any lesser weight necessary to show Vmc)
• Landing gear retracted
• Wing and cowl flaps in the takeoff position
• Trimmed for takeoff
• Airborne, out of ground effect.

Under these conditions, the flight test pilot must be able to:

1. stop turn with 20º of original heading (5º max bank)
2. maintain straight flight with 5º bank or less

Question 3

Vmc Definition

Answer 3

Minimum control speed with the critical engine inoperative

“Red Line”