On Wednesday 13 April 2005 19:34, Lee Elliott wrote: > Hello all, > > This is probably one for Andy R. > > I've got two flight models in development that use the YASim > turbine engine and although they both solve and fly reasonably > (bearing in mind that they are both pre-alpha and I've done > less than 15 minutes on each) the fuel flow figures are of the > order of several hundred million gallons/hour. No - that's > not a typo - several hundred millions of gallons per hour. > > Heh - although I said that they flew reasonably well for first > attempts I should have added that this was with empty fuel > tanks - as soon as the sim starts the tanks are drained:) > > There's a .tar.gz of the TU-114 YASim config on-line at > > http://www.overthetop.freeserve.co.uk/TU-114-yasim.tar.gz > > While there's certainly a lot of guesswork in the config I > can't see, or even imagine, anything that would lead to these > fuel-flow rates. > > The second 'problem' may not be a problem at all but just a > mis-configuration in the same TU-114 config. Although I've > included contra="1" tags I still appear to be getting prop > induced roll. > > I've also included moment tags but these are un-calculated > place holder figures until I can work some proper numbers out > but I thought that these were effectively ignored if > contra="1" was included. > > LeeE
Oops - ignore the prop induced roll problem - the Right Outer engine needs a crucial '-' inserted in front of the propeller y loc - doh. LeeE _______________________________________________ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
