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Electric Motor Mounting Angle

by Dean
(Gold Coast, Australia)

What happens if the mounting angle of the motor is wrong, non-existent or backwards? Does anyone have any information on how the physics of this works?

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Electric Motor Mounting Angle

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Jul 28, 2008
Motor mounting angle
by: Pete

Hi Dean,
I'm not sure about the mounting angle being backwards! But it can certainly be mounted at various angles, or no angle at all.
The two common angles are called 'down thrust' and 'right thrust', where the mount is angled a few degrees pointing down and to the right respectively, although not necessarily together.
The down thrust limits the plane's natural climbing performance, while right thrust is used to act against the torque generated by the spinning prop.
Which angle and how much totally depends on the model in question and down thrust or right thrust is usually determined in the plane's stages of design.
Many planes don't have either angle and fly perfectly well - again, it all depends on the model.

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