This could also be handled on the flightgear side ... it probably wouldn't be too hard to make mixture a function of perceived gravity ... maybe with some delay to account for fuel propogation.
Curt. David Luff writes: > On 9/29/03 at 10:46 PM Jon Stockill wrote: > > >I've just created myself a DeHavilland Chipmunk flight model using > >Aeromatic, but was wondering if it was possible to model the fuel system > >more accurately such that the fuel flow stops after a period of inverted > >flight/-ve G. > > > >I'm guessing it'd need to be modelled by tweaking the mix, but I'm not > >sure if it can be tied into the xml, or if it'll need implementing > >somewhere else. > > [cc'd to jsbsim-devel] > > OTOH, at the moment the engine model is supplied a flag indicating either > fuel available or not available. This is tied to whether fuel is in the > tanks. However, you want to also tie it to gravity (lack-of) and length of > time without the aformentioned. Since the specific behaviour will be fuel > system dependent that begs the question - who owns and manages the fuel > delivery system characteristics - FGPiston or the JSBSim framework. If > FGPiston then mixture can be leaned out progressively though stutter and > splutter to cut-off if required. If JSBSim, then easy to use the > fuel-starved flag to model cut-off, possibly not as easy to model > progressive cutting off. I guess the delivery system will be specified in > xml - whether it's neg G tolerant and for how long etc. > > This reminds me - I've still got a few TODO's knocking about wrt the engine > code - turbocharging, some spluttery warning of mixture over-leaning and a > decent starter motor torque curve spring to mind. > > Cheers - Dave > > > > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel -- Curtis Olson HumanFIRST Program FlightGear Project Twin Cities curt 'at' me.umn.edu curt 'at' flightgear.org 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
