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right and down thrust calculation

General discussion on any topic which doesn't have a natural home on any of the other boards.
mick a

right and down thrust calculation

Post by mick a »

hi gents
here we go again - more qs
does anyone have the calculations of what angle right a and down thrust should be
i’m putting electric motor in mminimoa 4.85 mtr wingspan
was wondering what distance the offset line from the centre line should be
and will i need to put down thrust in
thanks again in advance
mick
Jolly Roger
Posts: 573
Joined: 30 May 2015, 20:35
Location: Sutton Bank, North Yorkshire

Re: right and down thrust calculation

Post by Jolly Roger »

Hi Mick,
I put in around 3 degrees down and maybe 2 degrees right if the prop is on the tip of the nose. If there's a spinner my priority is to make it conform with the contours of the nose rather than specific thrust angles. Any tendency to rear up on power can then be mixed out with down elevator.
Hope this helps,
Rog
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