I am looking for someone to provide me with guidance, on up to a possible completed design for a tail section for the Twin Engine Jet Luge. After repeated real life testing and some simulation I have pretty much proven I need a tail section that will maintain the Center of Pressure behind the COG and limit harmonic yaw (wobbles) at speeds for 90 to 130mph. I would also like to incorporate a split rudder to act as an airbrake similar to he Space Shuttle to smoothly but quickly slow me down from 130 to 80 mph. The Jet Luge works very well up to about 90 mph without aerodynamic devices, butt then tends to start weaving the front end like it wants to swap ends... this is more pronounced at higher speeds and I end up having to back out at 119mph. I can only perform this test on a long and wide runway where I can let it run out instead of fighting it. I need to make the thing stable in a narrow track. One of the aerospace guys at NRL here in DC (where I work) told me I was like an arrow flying backward when I reach the higher speeds. I need the airbrakes because the Flintstone style of braking I do, although very efficient, is not possible at speeds over 80 mph. Now that I am adding a second 50lb turbine, getting the design right is more critical.

If anyone is interested in taking this on you may discuss it here or contact me offline.

For more info on the Jet Luge you can go here [link=http://www.jetluge.net]JetLuge Site[/link] check out the promo video

here is a pict.


Thank you
Bob