[python] Re: Electric python (!)
- From: Dirk Bonne <dirk_bonne@xxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Mon, 12 Sep 2005 16:54:21 +0200
On 09/12/2005 04:31 PM, Ray Schümacher wrote:
>At 01:12 AM 9/12/2005, you wrote:
>
>
>>On 09/12/2005 05:50 AM, Ray Schümacher wrote:
>>
>>
>>>I had a wild hair, so I put my dusty old electric motor on the rear of the
>>>python.
>>>I didn't use it much, ever, because it is a little weak for my weight. They
>>>do sell a newer 36V 600W brushed version now (with optional NimH pack) that
>>>would probably be nicer.
>>>In any case, it cruises nicely ~25km/h, I'd guess. It will go up slight
>>>grades, ~3%, at ~15. The hub weighs ~5kg as does each battery (2) so it
>>>changes the handling a bit. The main issue is the wiggly support frame which
>>>adds some whippy feel to the rear. I would not recommend it for a learner.
>>>
>>>
>>>
>>That is cool! Can it work in addition to pedal power? Could be cool on
>>really long trips, when the legs begin to fall of the pedals... A friend
>>of mine ---not me! ;-P --- always starts talking about solex motors on
>>such trips.
>>
>>
>
>Hi Dirk,
>Yes, pedal power is required, really. The start-up torque of the brushless
>motors is rather low, and you do get the opposite feeling of acceleration
>stability. When you apply power, the pivot wants to turn easier, as opposed to
>"straightening out" like your climbs uphill.
>
>
Hmm thats seems rather nasty. To solve that, the negative trail should
be as low as possible probably.
>There is some extra parasitic drag due to the magnets inside, so a little
>power is always desirable. Range is very good, though, 30-70km depending on
>model.
>A local company has an even more powerful kit (and more expensive)
>http://www.greenspeed.us/tidalforce_electric_motor.htm
>
>
pfeeew! an expensive toy! 2000$ for the cheap one...
Dirk
>Ray
>
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