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Engine angle

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Old 02-05-2014, 07:28 AM
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chestervw
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Default Engine angle

Building a powered glider, ( butterfly ), I want to know what would be the results in the plane's handling if I don't put the engine on the down angle that is shown on the plans and just mount it at 0 degree angle?
Thanks, Chester
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Old 02-05-2014, 07:46 AM
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speedracerntrixie
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Under power it will want to climb. The down thrust is there so that the elevator trims the same power off and on.
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Old 02-05-2014, 08:13 AM
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thanks , for your help.
Chester
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Old 02-05-2014, 08:13 AM
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yup.
you'll be 'chasing' the elevator trim. when you've got some power on (say half throttle) it'll want to climb gently but persistently.
with full throttle it'll likely want to climb like a homesick angel. at idle it'll fly straight and level

on the other hand, if you trim it to fly level at full throttle, it'll want to dive with a lower throttle setting.
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