Profiles and snaps
 

Do profiles snap well in general? I have an old Extreme330 and have not been able to do a good snap with it. Perhaps its in my setup. Comments?

RE: Profiles and snaps
 

Rajul,

Well I'll come out and say it that I don't think they snap well at all no, especially not the ones that are designed for full on 3D. From my experience they just won't reach the break or get the one wing stalled properly like conventional planes do. BUT...yes there is a but! You can force the wing to stall with the correct inputs 99% of the time on the profiles, on most of my profiles I've found that one has to be especially carefull of elevator inputs as the elevators also tend to be very powerfull on these planes forcing both wings above the stall before anything else can happen and then you just end up with a little flop thing.

Having enough aileron in will help destroy the wing's lift and obviously help the other wing to gain lift when everything goes right, a healthy amount of rudder in the right direction will also help force this to happen. A very small amount of elevator is all that's needed then to choose between upright and inverted snaps.

Next time out try my tried and tested way of snapping these things quick and easy, simply go to a healthy amount of throttle (Maybe 1/2~3/4 to avoid breaking it apart if it's overpowered). Next just jam in full left aileron along with full left rudder, try some variations of this but all of my profiles will snap if you do this. Now you can try adding elevator and playing with the amount of other inputs to refine your snap.

On my Fusion for instance I'm practising to snap it like the guys do the giant scale stuff and this works really well for me now. For an upright snap I jam in full aileron and the same direction rudder (This is all on low rates btw and not 3D rates) and then a split second after I just bump up elevator for a split second and let go, it'll nail any amount of snaps I want this way with a clean exit by just letting of the sticks while bumping opposite rudder.

RE: Profiles and snaps
 

I have been doing my 52" Fusion snaps from KE. I run along at 1/2 power left wing down. I input full down and full left for a split second. It will do a fast snap and return to KE flight. Do these at 20' or so and it will wake up your fellow flyers.[sm=teeth_smile.gif]

RE: Profiles and snaps
 

Thin wing profiles aka fusion, sabre etc snap much more cleanly than a fat wing. your goldberg, old omp yak54, mojo 60 as examples of fat wing profiles snap sloppy IMO. The 90 size fusion snaps perfectly when rates are set accordingly and is a good Imac practice plane

RE: Profiles and snaps
 

These guys are right on, in my opinion. Fat airfoils that lend themselves to the low and super slow 3D-batics don't usually make good snappers. And pretty much the same goes for tumbles.

Another snappable profiles (tumblable) might be the Copperhead Aviation Woody, OMP Boxxer, EF Chinn Yakk, Swany Primo, and the Sabre 48 from Spaz.

RE: Profiles and snaps
 

My extreme 330 does a decent snap with the cg at 5 3/4 and a saito 72 using a 13x6 prop if that helps.

RE: Profiles and snaps
 

I throw something else into the discussion and that is most folks who try to do snaps with funfly planes just do not know how to set the proper rates for doing snaps. Even on giant scale planes you need to understand how to make a plane snap properly and cleanly. Many simple bang the sticks to the corners and expect to snap. On a funfly plane or pure 3d plane the control surface deflection is WAY too much for snaps. Reduce your tail throws down to "pattern" levels and you will get decent snaps, even with a funfly plane. Not pefect but decent. If you want the best of both worlds fly the Fusion!