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Design => Stunt design => Topic started by: bob whitney on April 25, 2025, 04:12:30 PM

Title: different size flap
Post by: bob whitney on April 25, 2025, 04:12:30 PM
what happens if the out side flap is 2 in shorter than the inner flap
Title: Re: different size flap
Post by: Ken Culbertson on April 25, 2025, 05:45:53 PM
what happens if the out side flap is 2 in shorter than the inner flap
likely hinging - Ken

Please don't tell me you put flaps on an All American Sr.
Title: Re: different size flap
Post by: Dan McEntee on April 25, 2025, 07:05:09 PM
  I'll say that what happens depends on the chord of the flap, and how much it deflects. The inboard wing tip is flying a shorter distance and slower than the outboard, and if the outboard flap is shorter near the fuselage, it can have an some influence.
   Next question is, how did they get that way??

   Type at you later,
    Dan McEntee
Title: Re: different size flap
Post by: Brett Buck on April 25, 2025, 07:31:41 PM
what happens if the out side flap is 2 in shorter than the inner flap

   You end up putting a gigantic tab on it?

     Brett
Title: Re: different size flap
Post by: Dave_Trible on April 26, 2025, 07:36:56 AM
Sounds like something that might have happened in the earliest days of stunt where the thinking was that the inboard wing needed to carry the weight of the lines so had to generate a tremendous amount more lift than outboard-ala the All American.   You sure would have zero tip weight.  It would be a task to trim this thing to anything like modern standards.  If it were a modern mess-up,   fix it.  I actually have a slightly larger outboard flap at least in chord width (3/32").

Dave
Title: Re: different size flap
Post by: bob whitney on April 26, 2025, 02:58:49 PM
i am not aloud to be in the same room with any measuring instruments
Title: Re: different size flap
Post by: Dan McEntee on April 26, 2025, 08:40:22 PM
i am not aloud to be in the same room with any measuring instruments

   So what you are saying is, you cut it off twice and it's still too short?? Measured once and cut thrice?? That ok, we still love you RAD!!
 Type at you later,
   Dan McEntee
Title: Re: different size flap
Post by: bob whitney on April 27, 2025, 09:10:26 PM
who needs stinking plans, RAD