Hey Folks,

Got a GP Dazzler, maiden flight is fast approaching. I've connected my ailerons so I can use them as Flaps with my computer radio. My question is this: How much throw should I use for the flaps. (With the push of a switch, both alerons drop down creating extra lift for a little more gentle landing attitude.) I can adjust the throws on the radio so that won't be a problem. Instead of trial and error, which I'm NOT opposed to, I'd like some input as to a good recommended start point for the flap throws.

Also, while we're on the subject should I mix a little bit of down elevator to offset the nose up condition when using flaps? If so, what ratio?

Trial and error is fine, I'm just loking for a good starting point.

thanks in advance for the help!

bakes65, when I finished my Limbo dancer I did the SAME thing. I think these planes are close to the same. I put a ton of flaps (max) and mixed in a little down to offset it. WHOA. Almost ANY elevator mix was to much, ended up taking all of it out. The flaps haven't really done a whole lot. In all, it shortens the landing distance from 12 inches to 6 inches. Your wing thickness is close to the same. It should land unbelievably slow. one cool thing is to mix the flaperons w/the elevator.

THANKS SPANKY!

C'mon guys, this thread has been live for almost 10 hours and I've only gotten one reply!

I NEED MORE FEEDBACK![:@]

Bakes65:

I have had a GP Dazzler for about a year. I have programmed in all sorts of wild things. Please note: The characteristics of the aircraft do NOT lend themselves to FLAPS. Even a small input will actually make the plane DIVE. You will need to program in some UP elevator. A better solution is spoilerons. Make the ailerons go UP. This will slow the plane down substantially. However, with a thick leading edge like the Dazzler has, it land really slow and steady without any flaps or spoilerons.

See for yourself. Program in about 25% flaps and go up at leat 2 mistakes high. Flip whatever switch activates the flaps and watch what happens. Do the same with spoilerons. Let me know how you make out.

Landing the Dazzler conventionally, is a piece of cake. Keep about 1/4 throttle until just over the beginning of the runway, then go to idle. Maintain level and the Dazzler will just float in. Use you elevator sparingly.

Good Luck.

Pat

This makes no sense to me. Why would the aircraft dive if both ailerons are pointing downward. My understanding of aerodynamics dictates an upward lift on the wing, thus making a nose up condition. PLease help!

Maybe I'll forgo the flaps for a bit and give the spoilerons a try.

Thanks for the input Pat!

My aerodynamics is limited as well, but .... if the ailerons are far behind the CG, then they can start behaving in the same way as elevators... i.e. pointint both ailerons down (flaps) at low speed causes more pitch changing force than increased lift force. I may be talking BS, but that is my novice explaination ... ;-)

gus

depends what you want to do with it, for tight loops get a lot of up elevator and do a 2>6 mix so when the elevator goes up the flaps go down. if you want even slower landings then a bit of down flap and a little down elevator to compenstae will help.

down flap on this model will make the nose rise by the way, vice verse for spoileron-up flap

OK,
Both opinions, although valued, are now contradictory! One says when flaps go down, nose goes down. Other one says when flaps go down, nose goes up.

Maybe the best option is to get the plane three mistakes high and throw the flap switch! My theory says it'll do one or the other. Maybe I wont have to worry about it and it'll rip the wings right off the fuse and come corkscrewing in and bury itself up to the tail feathers and that'll solve my flap question!

Tune in tomorrow!

I used to have a GP Dazzler, in my opinion, the Flaperons weren't really that great. I never used them, but i always had the option to. The plane was hard to control with flaps down and liked to be easily overcompensated with ailerons. Flaps on this plane is more like an airbrake, I would sudgest not even using them, but still have to ability. The only time I ever used mine was when i was deadstick. I'd come down and before I'd settle down (about a foot up) i'd kick them in to slow it down to nothing.