Originally Posted by Robert Wagoner
Thanks for taking the time to comment and discuss. Yeah I saw the CN / EJF sponsored comment. Really this about making everyone happy and to clear up any future problems and concerns.
This stab design has carried on since the 70mm Sniper and it's seen 160+ during the speed craze days. (all wood) stab. The 90mm Sniper V1 had an (all wood) stab and worked fine. then the factory made a V2 composite version that the control surface layup was thought the problem and made the V3 that was stronger and has been that way.
The 90mm Sniper XL was done the same as V3 and the shape of all these has never changed. This elevator discussion is pointing out that the aerodynamics of the control surface shape is the culprit causing higher loads thus stressing the components. albeit beefing it up with hinges and servo mounting does show a fix and makes it flyable, the loading is higher than it should be and that can be fixed.
The center XL stab area has room for two servos and the shape can be changed along with adding two hinge line redundancy that also lowers the loading. I'm all for it to get this done once and for all.
Are we all on the same page?
Agreed 100% Robert. I think that covers it all. In the end, there will be plenty of guys want to push this airframe way past 140 mph. Once the changes are made, it wouldn`t bother me is HET said something like "there is a 150mph speed limit on this airframe and any attempt to go faster is done strictly at the risk of the builder/owner."
But the airframe of a jet like this should be good for the 150 mph speed range in bone stock condition, IMHO.
Good show Robert!