Gliders > Thermal / Flat field
good 2.5m+ sailplane - which one ?
DennisZ:
So, my bird has arrived !
Actually, it arrived week ago, it took some time to get replacement servo http://www.leinster-model-flyer.org/wordpress/?p=275 .
Now, my 6ch radio does not have CROW braking mixing so idea is to configure ailerons as flaperons (channels 1 and 6) and have flaps on channel 5.
This will allow me to use throttle stick to move both ailerons up or down and have on-off flaps.
I may have to buy servo reverser for one of flaps or simply mount one servo "in reverse" .
Ok, back to the bird ...
there are couple of disappointing moments :(
- steel wing joiner is about 5 mm longer than it should be
- servo hatch covers are either completely of wrong size or the opening for servo arm was cut on a wrong side ... turned 90 degrees
Also my choice of servos was not very good - looks like aileron servos are about 2mm too thick.
Hopefully I'll manage to fix all that.
Happy Days:
Hey Dennis Glad your plane has arrived. Allow me to tell you a little tale about using flaperons. :!:
The picture at the end of this posting is the fuse’ of a little mouldy I have. There are a total of 5 breakages’ along it’s length. :(
I couldn’t understand why this little Filip 400 would often come into land nicely, then suddenly drop one wing and cartwheel along the landing area, breaking the fuse with the inertia. :cry:
Then I was then told about the effects of “Wash-in” and “Wash-out” at the wing tips. :?:
The end result was that instead of using the ailerons as flaperons when landing (Which increases Wash-In) I was told to make both ailerons move UP to become Spoilerons. This increases Wash-out which tends to stop the wing from tip stalling. :D
Result: Perfect landing every time! (Well………nearly perfect. Well,………..landings without damage, lets say that! :oops: )
You might want to bear this little story in mind
Oh, by the way. The Filip still flys, although not quite as well as it used to !!
Keith
DennisZ:
Thanks Keith.
--- Quote from: "Happy Days" --- I was told to make both ailerons move UP to become Spoilerons. This increases Wash-out which tends to stop the wing from tip stalling.
--- End quote ---
That is exactly what I was going to do: flaps down, ailerons up = crow braking.
DennisZ:
OK, it took me only 7 month to "build" ARTF model :)
have not flown yet
billscottni:
Looks good Denis :clap:
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