Michel
Joined: 10 Jan 2006
Posts: 966
Location: Norway
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 Posted: Tue Aug 01, 2006 5:10 am Post subject: SV: Re: Flaps. |
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Mike and Noel,
| Quote: | Otherwise, I'll check with Murle for you.
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Thank you Mike, but my builder manual says that I can adjust my flaps up to 24 degrees. More than that and the plane can be dangerous as it may invert the effect of the ailerons. I guess, the reason the original builder limited it to 10 degrees is ... safety in sustained bank control.
I have the flat bottomed flaperons but I guess, in you model IV, you had the symetrical ones, isn't it? It may make a difference.
When I pull 10 degrees of flaps, at level flight, I notice nothing but a nose-down force that I correct with the stick. When I remove quickly the 10 degrees, I notice something like a tiny fall, the lift being reduced. But with the flaps on, I don't notice a difference in speed, hence no drag.
When you are on final and find you're a bit high, you can either:
1) put the nose down and side slip, or
2) put the nose down and some flaps.
In both cases, you want to descend faster without gaining speed.
If I could do it with the flaps, I would because uncoordinated attitude is never good (unless you have a female passenger with a large breast and you're looking for an excuse to be pressed against it) 
But if I can't pull the nose down without gaining speed, I don't see the point because - and as your instructor said - don't side slip with the flaps on. So, it's either one or the other, but not both. Do you agree?
Noel, could you notice a drag in you model 3 with the flaps on? Did you measure, in degrees, the full extension?
Cheers,
Michel
PS: May the female readers excuse my sexist humour, it was not maliciously intended.
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