On Wed, 2002-06-26 at 15:15, Curtis L. Olson wrote: > > On Wed, 2002-06-26 at 14:08, Curtis L. Olson wrote: > > > The helio courier also has this feature. The leading edge slats are > > > split so you have two per wing ... four total acting independently of > > > each other. Depending on a variety of factors, each of the four could > > > deploy/retract at a different time. They made a bit of a bang coming > > > down so if you weren't expecting them, an unwary passenger might be a > > > little surprised and wonder what just fell off. :-) It's a neat idea > > > that is simple and effective. I've always thought it would be kind of > > > fun to impliment something like this on an R/C model, not that the > > > typical R/C model would need them ... > > Tony Peden writes: > > Two per wing, all independent? Sounds like a lot of potential for > > lateral control hell.... > > Didn't seem to be too much of a problem in practice. The transition > period is relatively short and you are moving fairly slow (less than > 80 kts or so?) when they deploy. I don't think deploying them > significantly changes lift or drag,
They typically don't at deploy/retract airspeeds. At lower airspeeds, however, the wing will make quite a bit more lift with them deployed. Should one segment jam, however, some *very* serious lateral control problems can develop. It can, of course, also happen with a fully powered system as well, but at least there you've got half a chance of detecting the asymmetry and stopping the deploy/retract sequence. but it does introduce a "slat" on > the leading edge to help keep the airflow stuck to the wing in > extremely high angle of attack situations. > > Regards, > > Curt. > -- > Curtis Olson IVLab / HumanFIRST Program FlightGear Project > Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED] > Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel -- Tony Peden [EMAIL PROTECTED] We all know Linux is great ... it does infinite loops in 5 seconds. -- attributed to Linus Torvalds _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
