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dennyt · 11-13-2011, 08:15 PM

Yeah, the aero drag goes up... exponentially

Bikes actually have a fairly high CdA, so making them go fast becomes a challenge, unless you want to go with a recumbent and/or fairing.

Edit - oh yeah, I've been using a different charger power supply lately, and if I leave it on all night, the fans keep running. So the charger efficiency has dropped from 67% to 53%.

That's why the MPG-E curve is steeper than the WH/Mi curve. I measure MPG-E at the wall, and WH/Mi at the controller.

11-13-2011, 08:15 PM	#17 (permalink)
dennyt in tents Join Date: Dec 2009 Location: Seattle, WA, USA Posts: 158 The Adventure Wagon - '94 Subaru Loyale Wagon 4x4 Subaru 90 day: 33.43 mpg (US) Electro-Monkey - '11 Surly Karate Monkey BMC V2S Front Hub Motor 90 day: 694.1 mpg (US) Thanks: 31 Thanked 31 Times in 23 Posts	Yeah, the aero drag goes up... exponentially Bikes actually have a fairly high CdA, so making them go fast becomes a challenge, unless you want to go with a recumbent and/or fairing. Edit - oh yeah, I've been using a different charger power supply lately, and if I leave it on all night, the fans keep running. So the charger efficiency has dropped from 67% to 53%. That's why the MPG-E curve is steeper than the WH/Mi curve. I measure MPG-E at the wall, and WH/Mi at the controller. __________________ Last edited by dennyt; 11-13-2011 at 08:52 PM..