Making flaps from strip ailerons
11-04-2007, 12:34 PM
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Making flaps from strip ailerons
I am building a older kit (Utter Kaos) and want to split the ailerons to make flaps. Are there any formulas or guidlines for the length of flaps/ailerons?
11-04-2007, 01:39 PM
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RE: Making flaps from strip ailerons
You're going to find that both the flap and aileron functions will suffer from just using the original strip control width. They just are not wide enough to provide a more highly noticable flap lift and drag. I tried converting a strip aileron ARF to flaperons one time and outside of killing the aileron function when the flaps were down the speed and lift didn't change a lot at all. Total failure outside of learning about something that doesn't work.
Your best option is going to be to shorten the ribs and install a new and deeper trailing edge cap on the wing that is further up so your controls can be wider. Move it so that the control surfaces are around 15 to 20% of the chord of the wing's chord.
Your best option is going to be to shorten the ribs and install a new and deeper trailing edge cap on the wing that is further up so your controls can be wider. Move it so that the control surfaces are around 15 to 20% of the chord of the wing's chord.
11-04-2007, 03:09 PM
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RE: Making flaps from strip ailerons
ORIGINAL: BMatthews
You're going to find that both the flap and aileron functions will suffer from just using the original strip control width. They just are not wide enough to provide a more highly noticable flap lift and drag. I tried converting a strip aileron ARF to flaperons one time and outside of killing the aileron function when the flaps were down the speed and lift didn't change a lot at all. Total failure outside of learning about something that doesn't work.
Your best option is going to be to shorten the ribs and install a new and deeper trailing edge cap on the wing that is further up so your controls can be wider. Move it so that the control surfaces are around 15 to 20% of the chord of the wing's chord.
You're going to find that both the flap and aileron functions will suffer from just using the original strip control width. They just are not wide enough to provide a more highly noticable flap lift and drag. I tried converting a strip aileron ARF to flaperons one time and outside of killing the aileron function when the flaps were down the speed and lift didn't change a lot at all. Total failure outside of learning about something that doesn't work.
Your best option is going to be to shorten the ribs and install a new and deeper trailing edge cap on the wing that is further up so your controls can be wider. Move it so that the control surfaces are around 15 to 20% of the chord of the wing's chord.
