Gliders > Slope Soaring
Tip stalling
johnfireball:
Hi all,
Having problems flying my DG1000. I keep tipstalling it on final downwind turn to land. My Dad suggests that my turn is too flat and to put in loads of bank. He says the full size ASK6 was notorious for this and many were crashed on finals. Do models behave the same? Hopefully will try again on Saturday. Had some great flying last weekend at killakee with my phase, strongest winds I've yet flown in 30 knots +gusty, was great to learn to fly backwards and so easy to land. Course I broke it eventually but got a good hours flying.
John
Happy Days:
Hi there John.
I’d have thought it was unlikely that your DG1000 has the same airfoil as a full size ASK6 so there wouldn’t be much correlation between the two matters. And with all due respect to your dad, I think it would be a brave pilot who would put in a lot of bank while turning close to the ground
JP is really your man, as he has a DG1000.
If it’s always the same wing tip that stalls regardless of whether you’re turning left or right I’d suggest the plane isn’t laterally balanced. You might like to check that.
Other than that, the only suggestion I can think of is to maintain a higher air speed in the turn.
I’m very impressed with your flying in 30+ Knots. 8)
John------A man after my own heart! :wink:
Keith
billscottni:
From what I remember of JP's plane, it realy needs the speed kept up on it. Any time he tried to slow it up it tip stalled too.
I'm sure he'll chime in when he sees this thread
rogallo:
Keep the nose down all the way. I see no reason not to apply plenty of bank if required just once the airspeed is maintained, ie more down!
Just my twopence worth.
Now I will hand you back to the theoretical nuts!
:D :D
R
JohnPearson:
Hi John
Just read your problem, two things to think about,
1. I have flown your model and she was great in the air, however, I told you about the tailplane angle, if you have had a hard landing recently, it could be a little off, check it.
2. I think as rogallo mentioned, 'air speed' is the problem,when you fly down wind you will have plenty of speed, however, as soon as you turn into wind for landing, the model will tend to balloon on the downwind turn, and this DR1000 will drop her wing very quickly if you let the nose up near the stall point, so keep the nose down! My DR1000 was a pain in the arse for doing this.
3. Check the balance laterally as Keith suggests also for peace of mind.
See how you get on John and keep me updated how she flys
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