On Wednesday 28 January 2004 02:26, Jon Berndt wrote: > > My understanding is that they will be doing a lot of thrust > > vectoring ... lots of research is/has been done in that area. > > > > Curt. > > No. This paper describes tests on a B-747, C-17, and MD-11 using propulsion > only: > > http://www.dfrc.nasa.gov/DTRS/1999/PDF/H-2331.pdf > > Differential thrust (per side) induces a sideslip -> induces roll. > > Changes in thrust (thrust line offset from CG in Z) induces pitch changes > as well as accel/decel. > > Etc. > > Again, this is something that the JSBSim FCS components could handle - you > need building blocks. > > Jon
I think I've heard of some of the stuff Curt's referring to - the next gen US fighters are planned to be thrust vectoring only. Taking the control surface stuff out of the wing removes channeling, making it more simple but also stronger and more resiliant to damage - you don't have to worry about the control surfaces getting damaged. Infact, the entire wing could sustain a lot of damage but as long as there's something there, it'd probably be flyable with such a control system. The planiforms I've seen have been trapizoidal, with an area cut out of the middle, along the fuselage! No tail surfaces, just vectoring thrust. Landing must be a laugh - difficult to imagine landing without flaps - very high AoA perhaps. LeeE _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
