Fwd: [RCSE] re:contest launch equipment vs large models HOW?

2007-12-21 Thread Lee Cox
Question?? How can I/you setup say six winches to be the same?? say we have six of the winch Doctors winches, all with real balls that can be timed. How can you meter them to all be the same?? do they have to be under a load when checking them? all of them are 12 volts. sum are with single

Re: Fwd: [RCSE] re:contest launch equipment vs large models HOW?

2007-12-21 Thread Mike Lachowski
F3b winches are meausred using a clamp on amp meter and a volt meter with the winch drums locked. This measures the stall current.Divide the battery voltage just before the test by the current to get an approximation of the overall resistance of the winch/battery combo. And winch batteries