Thrust Flight Multi-Engine Training Aerodynamics and Performance Quizzes

Welcome to Parts 1, 2, and 3 of the Aerodynamics and Performance section in Thrust Flight’s comprehensive Piper Seminole multi-engine training program.

During videos 1, 2, and 3, you’ve delved deeper into the critical aspects of multi-engine aerodynamics and performance. The knowledge you’ve accumulated so far has laid a solid foundation, and this quiz is designed to test and reinforce your understanding of the advanced principles that are essential for proficient multi-engine flying.

Below you’ll find each video followed by the quiz questions for that section.

Multi-Engine Aerodynamics and Performance Part 1

Aerodynamics and Performance Part 1

What are the 4 main aerodynamic principles that affect your aircraft while operating on one engine? *

P-factor, accelerated Slipstream, spiraling slipstream, torque

P-factor, accelerated slipstream, gyroscopic precession, torque

P-factor, gyroscopic precession, spiraling slipstream, torque

What is the definition of a critical engine? *

The engine that provides more thrust, therefore creating the biggest loss in performance when inoperative

The engine that has a longer arm from the longitudinal axis to the center of the spinner

The engine that will most adversely affect the performance and handling characteristics of the airplane when inoperative

How do you know which engine is considered critical on a conventional twin? *

The P.A.S.T acronym

Both engines spin to the left therefore the right engine is critical

Both engines spin to the right, therefore the right engine is critical

Does our airplane have a critical engine? Why or why not? *

Yes, the left engine is the critical engine

No, both propellers spin to the left

No, it has counter-rotating propellers

What are the V speeds regarding landing gear operation? *

VLE = 140 KIAS, VLO = 140 KIAS, VLR = 109 KIAS

VLE = 109 KIAS, VLO = 109 KIAS, VLR = 140 KIAS

VLE = 109 KIAS, VLO = 140 KIAS, VLR = 140 KIAS

What is the definition and speed of VSSE? *

Intentional one engine inoperative speed for pilot training. In the Seminole this is 88 KIAS.

Intentional one engine inoperative speed for pilot training. In the Seminole this is 82 KIAS.

Single engine best glide speed, or blue line. In the Seminole this is 88 KIAS.

What are the published stall speeds of the Seminole? *

VSO = 56 KIAS, VS1 = 57 KIAS

VSO = 55 KIAS, VS1 = 56 KIAS

VSO = 55 KIAS, VS1 = 57 KIAS

The single engine best rate of climb speed is 88 KIAS. *

True

False

The single engine best angle of climb speed is 88 KIAS *

True

False

In the Seminole VNO is 169 KIAS and VNE is 202 KIAS. *

True

False

What is VFE? *

111 KIAS

110 KIAS

110 KIAS for the first 10°, then 85 KIAS for the rest of the flaps

Multi-Engine Aerodynamics and Performance Part 2

Aerodynamics and Performance Part 2

What is VMC speed? *

The speed at which the aircraft will stall with 1 engine inoperative. In the Seminole, this is 56 KIAS.

The speed below which aircraft control cannot be maintained if the critical engine fails. In the Seminole, this is 56 KIAS.

The speed at which you should attempt to climb out after takeoff with an engine failure. In the Seminole this speed is 56 KIAS.

Under what conditions must a manufacturer test an airplane to determine its published VMC speed? *

Critical engine inop and windmilling prop, up to 5° and zero sideslip, standard sea level pressure, trim at take off, out of ground effect, cruise power from operating engine, flaps up and gear up, aft CG, most unfavorable weight

Critical engine inop and windmilling prop, up to 5° and zero sideslip, standard sea level pressure, trim at take off, out of ground effect, max power from operating engine, flaps at takeoff and gear up, aft CG, most unfavorable weight

How would density altitude change your VMC speed? *

High density altitude would decrease VMC

High density altitude would increase VMC

Low density altitude would decrease VMC

How would CG affect your VMC speed? *

An aft CG will decrease VMC as the rudder will have more authority

A forward CG will increase VMC as the rudder will have less authority

An aft CG will increase VMC as the rudder will have less authority

More weight lowers VMC because the plane’s wings need to carry the extra weight, thus increasing the horizontal component of lift available. This works against the asymmetric thrust, thus lowering VMC since the bank creates a horizontal component of lift. *

True

False

“Zero sideslip” is when the lateral axis is aligned to the relative wind. This improves single engine performance as it reduces drag. *

True

False

What is the definition of Accelerate Stop distance? *

Total distance from full power, accelerate to VR, experience an engine failure, and continue the takeoff and climb to 50 feet.

Total distance from full power, accelerate to V1, experience an engine failure, abort take off and bring your aircraft to a complete stop.

Total distance from full power, accelerate to VR, experience an engine failure, abort take off and bring your aircraft to a complete stop.

What does Accelerate Go distance mean? *

Total distance from full power, accelerate to VR, experience an engine failure, and continue the takeoff and climb to 50 feet.

Total distance from full power, accelerate to VR, experience an engine failure, abort take off and bring your aircraft to a complete stop.

Total distance from full power, accelerate to V1, experience an engine failure, and continue the takeoff and climb to 50 feet.

What is the difference between a single-engine service ceiling and an all-engine service ceiling of a multi-engine airplane? *

The all-engine service ceiling is the highest altitude at which a climb of 100 FPM with both engines operating can be maintained, while the single-engine service ceiling is when the airplane can only maintain a 50 FPM rate of climb with one engine inoperative.

The all-engine service ceiling is the highest altitude at which a climb of 50 FPM with both engines operating can be maintained, while the single-engine service ceiling is when the airplane can no longer climb with one engine inoperative.

What is the definition of an absolute ceiling? *

The absolute ceiling is reached when the airplane can only maintain a climb of 100 FPM

The absolute ceiling is reached when a climb is no longer possible

The absolute ceiling is reached when the airplane can only maintain a climb of 50 FPM

How do you recover from a spin in the Seminole? *

Power to idle, ailerons neutral, rudder full opposite direction of spin, control wheel full forward, rudder neutralize when rotation stops, control wheel smooth back pressure on the control wheel

Power to idle, ailerons neutral, rudder full opposite direction of spin, control wheel full back, rudder neutralize when rotation stops, control wheel smooth back pressure on the control wheel

Power to idle, ailerons neutral, rudder in the direction of spin, control wheel full back, rudder neutralize when rotation stops, control wheel

Multi-Engine Aerodynamics and Performance Part 3

Coming Soon.

About the Author
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Brian Brassaw( Chief Marketing Officer )

Brian is an experienced digital marketer who joined Thrust Flight in 2022 as the Chief Marketing Officer. He discovered a passion for aviation at 10 when he went for his first flight in a Piper Cherokee and enjoys helping others discover a career path as a professional pilot. He is an experienced marketing consultant helping brands with a variety of marketing initiatives. Brian received a bachelor’s degree in Communications from Brigham Young University.

www.brianbrassaw.com

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Thrust Flight Multi-Engine Training Aerodynamics and Performance Quizzes

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Multi-Engine Aerodynamics and Performance Part 1

Multi-Engine Aerodynamics and Performance Part 2

Multi-Engine Aerodynamics and Performance Part 3

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