--- Grant Edwards <[EMAIL PROTECTED]> wrote: > On Thu, May 09, 2002 at 09:11:13AM -0700, Tony Peden > wrote: > > > > Could flightgear be used to simulate model > airplane flight? > > > > > > I'm guessing there would be three main issues: > > > > > > 1) The numerical model. Would the flight model > used by FG > > > scale properly to a plane with a mass of 1kg, a > wingspan of 1m, > > > and flight speed of 5km/h? [Maybe this is a > stupid and/or > > > obvious question. I'm an electrical engineer, > so Reynolds is a > > > guy who sold aluminum...] > > > > There are several modules within FG that perform > the numerics. > > With JSBSim (the default) you supply the aero and > other data, > > so there shouldn't be any issues there. LaRCsim > and UIUC will > > be much the same. > > There are parameter files in known formats for > different > models, so maybe the required info can be taken > directlyor > derived from those. > > > YASim primarily requires only geometry and > performance data, > > but Andy Ross will need to speak to how well it's > math will > > scale down. > > I don't think that the math scaling down is a > problem unless > fixed-point is being used. If the calcs are in > floating point > it shouldn't be an issue. > > My concern was that the fluid dynamics on a small > scale > wouldn't behave as predicted by simulations designed > for larger > objects. I'm pretty sure that happens, but I just > don't know > at what size it becomes an issue. Or maybe I'm just > completely > off base.
You are correct, RC-scale flow needs to be treated differently than that around full-scale aircraft. That's what I was getting at above. > > Meanwhile, I'll start working on a cable and Linux > driver for > RC transmitter inputs. > > -- > Grant Edwards > [EMAIL PROTECTED] > > _______________________________________________ > Flightgear-users mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-users > > __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Mother's Day is May 12th! http://shopping.yahoo.com _______________________________________________ Flightgear-users mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-users
