Wow, an aircraft. This really is not the best place to ask that. Ask this question on the EVDL (Electric Vehicle Discussion List) where there are people that have done aircrafts both RC and fullsize, or at least know someone that has. (BTW, we are an offshoot from them). You can also look at the RC modelers to get some help. I do know that a very prominant EV promoter died in his electric aircraft prototype not too long ago. Hopefully, someone on the EVDL can steer you to someone that is carrying on his legacy.
To join the EVDL goto http://evdl.org/ or search their archives. Lyle --- [EMAIL PROTECTED] wrote: > I have thoroughly enjoyed reading all the great > things you guys are building. You guys really seem > to know what you are doing. I am building an > electric aircraft and am hoping someone might help > me figure a few things out. I have three motor > options I think will work for my prototype. The > Briggs+Stratton Etek brushless, the Perm PMG-132 > w/bushes, and the Lemco Lem-200 w/brushes. > > Because the Etek is brushless is it quieter? Is it > more energy efficient? Does anyone know the > efficiency % of the new brushless Etek? > Which motor will drain the batteries the quickest. > One that runs on 72volts and 110Amps or one using > 48volts and 165amps? > > The engine will only need to run at full power for > the first 2mins. After that it will mostly run at > percentages around 65% to 80% and occasionally at 0 > to descend and full power to climb. > > Are there any battery packs available commercially > that weigh less then 50 lbs that could power such a > set up for at least 30min? LiPo? A123? Could > someone show me how to calculate how much battery > power I will need? Can I run these batteries all > the way down or do I need to recharge before they > are completely drained. Thanks for the help and > great message board. -Mike > ________________________________________________________________________ > Check Out the new free AIM(R) Mail -- 2 GB of > storage and industry-leading spam and email virus > protection. > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
