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Unread 29-01-2002, 13:24
Dr.Bot
 
Posts: n/a
AARGH!!!

We did some surgery on this years versus last years
FP Motors/gearboxes.

1. Last year's motor is appernetly the same as the
loose 'Johnson' motor included in this years kit.

2. The gear press fit on last years motor is 16 tooth and identical in profile to the small portion of the Chipua cluster gear.

3. If we number the gears from highest to lowest speed
(closest to furthest from motor) gear two is the
same. 1, 3, 4 are different.

4. the palstic housing of the gear boxes is slightly different because the #1 gear /motor is in
a slightly different position.

5. If you use last year's housing and #1 gear it woule be fairly easy to modify the FP Gearbox to accomodate the Chipua cluster gear.
(housing and gear 1 from last year 2,3,4 from this year)

6. By just replacing the #1 gear from last year into this year's gearbox, more extensive modification of the gearbox housing would be needed to adapt.


This is all a theoretical exercise - our drive train team has not recommended we adapt or modify the FP gearboxes to accept the Chipua motors. I suspect they might be able to withstand the tourque
if suitable reinforced, they would be realatively slow. (The FP gearboxes are not very efficient.)

I have no question in my mind that using gears or motors from last year's kit is legal. Using last years housing is probably not. Using a complete
FP unit form last year is almost certainly not.