Hi,
Regarding the use of multiple small motors. That is my plan, but the
idea of running partial power via having some motors non-powered does
have an annoying snag.
Due to the lack of excess power available, the gearing has to be such to
give torque loadings that are slowing the motor group (when all motors
are running) only to a comfortable situation regarding amps and heat.
Taking a single motor of a group out will increase the 'slowing' effect
on the remaining motor(s), probably/possibly taking it/them out of a
useable range as far as amps/heat and continuous duty goes.
The simple resolution though, is to have a second pulley/belt set
available, with corrected ratios. Especially with toothed belts, and
spring loaded tension pulleys that can be hooked back clear, the
changeover would be quick to do.
John
4b. Re: 30 ft C&C/ Colombia 30
Posted by: "KEN" rekkamurd@yahoo.com rekkamurd
Date: Mon Jan 23, 2012 10:21 pm ((PST))
"roll your own".. funny expression no doubt, but pretty much what I had
in mind pointing at the "monsterscooterparts.com" site, I dont know what
kind of power requirements your 30 footers really need, the 24v 900 watt
motors (1.2hp each) if 80% efficient is 1hp each..
they spin about 2500 rpm and belt or chain joining em at whatever
reduction would be simple enough. same for replacement if one takes the
proverbial dump, theyre not spendy.
if theres 3 of em and one comes unglued, still got the power of the
other 2 and can limp it home? not that it'd be a long trip with your 1hr
runtime requirement.
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