It seems to me the changes should be proportional. If you have an electric with a range of 15 miles per charge and you increase the efficiency by 20% then you will have an 18 mile range. If you have the same bike as a gasser with 150 mile range and you improve the efficiency by 20% then you should have a 180 mile range. Of course, that may be exactly what you are saying. All that trouble to only gain a mile or two in range? I do not believe these Vetter fully faired bikes are practical for on road use. Between the nuisance they create as a rider and the fact that a good stiff cross wind may cause some serious problems I would not consider using one. Also, they help more at higher speeds and less at lower. At lower speeds rolling resistance is more of a factor than aero. Usually somewhere between 30 and 40 mph is where the aero starts to be the biggest factor. damon
Date: Wed, 12 Mar 2008 10:00:00 -0700From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Re: [ElectricMotorcycles] Craig Vetter DVDi did some rough calculations, i found that a very aero electric bike might only improve the range by 2 or 3. i think that the extreme range increase for the gas bike [5 to 10 times more], is because the gas bikes start off with such a low efficiency that it can be improved greatly, but an electric bike starts off with a higher efficiency so its harder to improve it.David Herron <[EMAIL PROTECTED]> wrote: I absolutely agree -- I have one of his fairings and am scratching my head over how to mount it on my Lectra. Will be sharing as I go along.BTW, the Aptera fits his description of the perfect shape ..ah.. perfectlyAnd I saw a couple days ago he's right now working on putting his fairing onto a Honda Helix. He's showing all sorts of detailed pictures on getting a fairing onto a motorcycle. It looks very interesting.- DavidPaul compton wrote:> Everybody trying to get decent range out of an electric motorcycle should> take a look at Craig's site.>> http://www.craigvetter.com/>> I bought a copy of his high millage DVD recently, worth a look!>>> Paul Compton> www.evguru.co.uk> www.batteryvehiclesociety.org.uk> www.sciroccoev.co.uk> www.morini-mania.co.uk> www.compton.vispa.com/the_named>>>> harryAlbuquerque, NMhttp://geocities.com/hendersonmotorcycles/blog.htmlhttp://www.austinev.org/evalbum/1179http://geocities.com/solarcookingman Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. _________________________________________________________________ Connect and share in new ways with Windows Live. http://www.windowslive.com/share.html?ocid=TXT_TAGHM_Wave2_sharelife_012008
