>>None of which tells us about the actual weight and balance state of the >>aircraft at the time. >>Still sounds like a stall /spin.
The engine on a DG-400 weighs about 60 kgs and sits entirely behind the CofG of the glider. If you remove it completely, to compensate, you fit just a 1 kg weight just in front of the tail wheel. What does the average tail dolly weigh? 5-7 kgs? It's only a guess but that would affect the weight and balance wouldn't it? Another issue is centre of pressure movement with varying angle of attack. (Are we allowed to talk about centre of pressure movement these days?) Some foils are very much more sensitive to angle of attack and I suppose if these factors contributed to a stall and resulting spin, then you are of course correct… it still sounds like a stall/spin. Caused by the tail dolly weight out on the end of a long lever. D _______________________________________________ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
