02-06-2013, 07:37 AM
Well the test flight didn't quite go as planned
I hand launched it, Jag was on the sticks and Claudio manned the camera.
We can safely discount pilot error and radio failure. So I'm not entirely sure what happened
I suspect that that tail is either not big enough or it's positioned too low relative to the wing.
I did change the position of the wing, I raised them up about 10-12 mm from the original plan so I had enough room in the fuse for Bigger lipos, wires, plugs etc.
I'm thinking that it Yawed and pitched up and the tail got in the down wash of the wing and it was all over. Jag did well seeing the end was neigh early on and backed off the power immediately which minimised the damage. It was an unintended and rather unexpected result.
Any other theories as to what happened would be most welcome here's the video slowed down and zoomed in a bit, It all starts off OK but then comes unstuck, you can see it spins more than rolls. It's quite unusual. Nice Camera work Claudio !!
http://www.youtube.com/watch?v=1xiIoK3I1CY&feature=youtu.be
I hand launched it, Jag was on the sticks and Claudio manned the camera.
We can safely discount pilot error and radio failure. So I'm not entirely sure what happened
I suspect that that tail is either not big enough or it's positioned too low relative to the wing.
I did change the position of the wing, I raised them up about 10-12 mm from the original plan so I had enough room in the fuse for Bigger lipos, wires, plugs etc.
I'm thinking that it Yawed and pitched up and the tail got in the down wash of the wing and it was all over. Jag did well seeing the end was neigh early on and backed off the power immediately which minimised the damage. It was an unintended and rather unexpected result.
Any other theories as to what happened would be most welcome here's the video slowed down and zoomed in a bit, It all starts off OK but then comes unstuck, you can see it spins more than rolls. It's quite unusual. Nice Camera work Claudio !!
http://www.youtube.com/watch?v=1xiIoK3I1CY&feature=youtu.be
“The knack of flying is learning how to throw your machine at the ground and miss.”
"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return." ~Leonardo Da Vinci