Re: [Flightgear-devel] Engine models: start-up and commonality between FDMs

2002-11-13 Thread David Luff
On 11/13/02 at 12:16 AM Julian Foad wrote: >David Luff wrote: >> >> It looks to me like you've >> got 2 too many curly brackets in doEnginePower, although I could be >> misunderstanding what you're doing there. > >Yes, I have got too many. This is the friction that was applied only >when starti

Re: [Flightgear-devel] Engine models: start-up and commonality between FDMs

2002-11-12 Thread David Luff
On 11/12/02 at 12:28 AM Julian Foad wrote: >Ah, glad you're there. If you're interested and have time to look, my >current attempt is at > > http://www.btinternet.com/~julianfoad/fgfs/JSB_piston_engine.diff > http://www.btinternet.com/~julianfoad/fgfs/engine_sound.diff > >but, as I said, not

Re: [Flightgear-devel] Engine models: start-up and commonality between FDMs

2002-11-10 Thread David Luff
On 11/10/02 at 4:02 AM Julian Foad wrote: > >As for the guts of how the engines are modelled ... I first worked on >the starting and stopping behaviour of the JSBsim engine. The >thermodynamic model of the engine is probably very good Parts of it are, parts of it aren't and are overdue a re-vi

re: [Flightgear-devel] Engine models: start-up and commonality between FDMs

2002-11-07 Thread David Megginson
Julian Foad writes: > Much of this code in JSBSim is very similar to FDM/IO360.cxx which seems > to be only used by LARCsim even though it is not in the LARCsim > subdirectory; presumably one was derived from the other. I really don't > like duplication; I feel that any work I do on one of

[Flightgear-devel] Engine models: start-up and commonality between FDMs

2002-11-07 Thread Julian Foad
I was having a look at the piston engine start-up code. I absolutely love the way it chugs away for a second or two and then coughs into life - the sound effects really "make" it - but I wanted to make the speeds and stuff more realistic. Looking at the JSBSim engine code, it uses lots of ar