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Re: HL M41A3 Walker Bulldog Test Run
Posted: Wed Feb 25, 2009 10:19 am
by philipat
Looks good...what are the internals?
RX-14 or -18? Any fan? Steel, alloy or plastic gears? How many teeth on the pinion?
And the most important question: have you done any speed tests to see if it is at or close to scale speed?
Re: HL M41A3 Walker Bulldog Test Run
Posted: Wed Feb 25, 2009 11:53 am
by tiger205
Re: HL M41A3 Walker Bulldog Test Run
Posted: Thu Feb 26, 2009 9:43 am
by philipat
Cool...thanks.
The Bulldog ran at 72 kph (45 mph). Scale speed is about 2.8 mph (4.5 kph). Your tank looked like it was moving right along; so, that's why I was wondering if you had clocked it.
Re: HL M41A3 Walker Bulldog Test Run
Posted: Thu Feb 26, 2009 1:14 pm
by BREL
great videos
Re: HL M41A3 Walker Bulldog Test Run
Posted: Fri Feb 27, 2009 12:07 am
by philipat
Swathdiver has a nice spreadsheet that converts motor speeds, pinion gears and gearboxes into scale speeds.
According to his calculations, with the Speed400s, you could probably get close to scale speed with a 12-tooth pinion. Or you could jump up to Jamara 480 motors and keep the 10-tooth pinion (just had fan
).
Re: HL M41A3 Walker Bulldog Test Run
Posted: Fri Feb 27, 2009 11:16 am
by philipat
Tower Hobbies is where I have found them. But that's on this side of the pond. I'm sure there are some suppliers on your side of the water.
Re: HL M41A3 Walker Bulldog Test Run
Posted: Sun Mar 01, 2009 12:28 am
by philipat
No problem...who did you get it from? Would love to broaden my options.
Re: HL M41A3 Walker Bulldog Test Run
Posted: Mon Mar 02, 2009 1:49 pm
by philipat
Thanks...didn't realize that they sold pinions.
