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 But no matter how you place, the thing to watch for is the character change in the team members. The trophies are only important for a few hours. The character that is built will last a lifetime. - BrothersKeepers [more] |
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#2
12-01-2009, 11:38
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Re: 12.75:1 enough?
The maximum frictional force is not 150lbs + 40lbs. The trailer wheels are not powered and so don't add to your maximum tractive force. The tongue weight, however, will help you - let's call it 10 lbs (probably an overestimate). So your downforce is 160lbs.
This means that the maximum tractive force (with 0.2 CoF) is .2*160lbs = 32 lbf. Max torque = 32lbf * 3in = 96 lbf*in Torque needed/torque provided = 96/8.5 = 11.3 And realistically the CoF is 0.1 or below, so I think direct drive off the ToughBoxes provides more than enough torque (with 1 motor per side). |
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