Re: [Flightgear-devel] batteries, alternators, volts, amps - electrical system

2005-06-01 Thread bass pumped
Hi, I'm thinking that if you can find the performance graphs for a given alternator for an aircraft, especially those with rpm vs output (whether voltage or current) and then put the values into an XML file, it might do the trick for you. You could then use Kirchoff's laws to sum the input from

Re: [Flightgear-devel] batteries, alternators, volts, amps - electrical system

2005-06-01 Thread Paul Surgeon
Just some general info that may or may not be useful. General aviation batteries : Typically lead acid Commercial and military : Typically Ni-Cad (nickel cadmium) Alternators are far more efficient at *low* RPM than generators but are still terrible energy converters (unless you really need

Re: [Flightgear-devel] batteries, alternators, volts, amps - electrical system

2005-06-01 Thread Christian Mayer
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Paul Surgeon schrieb: Just some general info that may or may not be useful. General aviation batteries : Typically lead acid Commercial and military : Typically Ni-Cad (nickel cadmium) [...] On the battery side of things the discharge and

Re: [Flightgear-devel] batteries, alternators, volts, amps - electrical system

2005-05-31 Thread Christian Mayer
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Curtis L. Olson schrieb: I need to do some work beefing up our electrical system model a bit. I'd like to add a simple model for a battery where output varies with time and a simple alternator model where output varies with rpm. I'm a complete