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Flying boat/scratch build

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Flying boat/scratch build

Old 03-03-2016, 07:23 PM
  #1  
Roger Gray
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Default Flying boat/scratch build

I am building a flying boat from my own design. This is my first seaplane with the engine above the fuse on a pod. Should the incidence be set at 0 degrees for the wing and stab. Also, should the engine be 0 degrees or plus or minus a few degrees angle of attack?
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Old 03-04-2016, 05:48 AM
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RagwingFan
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sorry I do not have the answer. quick thought...you may see if you can get comparison from ACE Seamaster 40 or 120 size plans/kits.
Old 03-04-2016, 09:33 AM
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yyk1966
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Your design reminds me Savoia-Marchetti S.55.
S.55 had a very pronounced positive engine thrust line.
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Old 03-04-2016, 02:56 PM
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Roger Gray
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boy does it!
Old 03-06-2016, 11:31 AM
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Himat
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Originally Posted by Roger Gray View Post
I am building a flying boat from my own design. This is my first seaplane with the engine above the fuse on a pod. Should the incidence be set at 0 degrees for the wing and stab. Also, should the engine be 0 degrees or plus or minus a few degrees angle of attack?
If you have not an eleborate calculation on wing and tailplane incidence, to set both at 0 is probably a god starting point. With the engine on a pod more or less above the wing, a few degrees up or down thrust do probably not make much difference. I would start wit a 0 setting and adjust after testing.

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