[Guess I'm going to have to look at this 95.10 in detail and then see if I can design something that comes within the weight limit but without being too small. I was looking at about 65/70% scale or even bigger but that seems to be going out the window. I'm 6ft and really don't want just my head under the canopy. Some W.A.R. replica's look way too small. I wonder if there'll be any changes to the rule in the upcoming release? Two-strokes in a war plane, yuk, but might be the only way to go if I can get them cheap enough. Perhaps the props will modify the sound sufficiently bearing in mind that the original was a turbo. Thanks for the tip on the thrust bearing. I'd completely forgotten that. Shouldn't be too hard to fit. Flex coupling are already on my list and hopefully, the concentric part of the system will be short enough not to have worry about harmonic/torsional vibrations. Nice work with your SR-71 photo. Would be great if you could get sufficient lift with a modified wing section and some extra horses from your engines. Don't forget to look at the yaw oscillation thing that occurs with swept wings (this kept me away from experimenting with a Hawker Hunter T7) BTW, whats the go with wheel retracts and experiment category? Are they allowed with RAA cert. I seem to be seeing conflicting reports. If you need to move these posts to a different area, go ahead. I'm sure I'll find it eventually. Cheers, Doug
