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Engine basics => Engine set up tips => Topic started by: roger on December 03, 2010, 06:14:24 PM

Title: motor mt.
Post by: roger on December 03, 2010, 06:14:24 PM

heres a dumb question: n~
why arent motors mounted at a slight downward attitude in profiles as they are in r/c planes? and also wings mounted in a slight doward position on c/l planes?

Title: Re: motor mt.
Post by: Brett Buck on December 03, 2010, 07:10:07 PM

Quote from: roger on December 03, 2010, 06:14:24 PM

why arent motors mounted at a slight downward attitude in profiles as they are in r/c planes? and also wings mounted in a slight doward position on c/l planes?

   Some people use downthrust (in tiny amounts) on stunt planes. It's an entirely different reason from R/C, but it sometimes is beneficial.

     I am not sure about the second question - I think you mean negative incidence in the wing. We sometimes do use the equivalent (positive in the stabilizer), once again, in tiny amounts and for a slightly different reason.

    Brett