Unknown motor

Unknown motor

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4 December 2012 at 10:24 #38044
ARTHUR COLLETT
Participant
@arthurcollett48040
Hi All

Can anyone tel me more about these motors. it was removed from a Dumas PT 109. (Too Slow) also can someone tell me what the correct size motor and prop size should be to get the PT109 up to plane

Regards

Arthur
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4 December 2012 at 10:24 #5200
ARTHUR COLLETT
Participant
@arthurcollett48040
Vintage or not so vintage
7 December 2012 at 05:32 #38086
Yabbie1
Participant
@yabbie1
Arthur,

These are American made Pittman motors, almost certainly 9004 Boatmasters. They were available in 6-volt (9004-6) and 12-volt (9004-12) versions, from 1967 onward. Nice motors, but by today's standards more suited to slow scale models.

For your PT-109 or any fast model, I'm going to be constroversial and say that brushless motors are the only way to go! Two outrunners of around 100watt each for the larger PT-109, but sorry, I don't have the time to ask the 20+ questions needed to identify a specific motor for you.

Yabbie 1.
7 December 2012 at 10:35 #38093
ARTHUR COLLETT
Participant
@arthurcollett48040
Hi Yabbie.

Thanks a lot. The motors was given to me by a friend whom removed them from the PT109. I gladly accepted of course. Changing to brushless was my idea also. I dont do fast electrics and the motors suits my application perfect. Will get a use for them. Never turn a gift away.

Regards

Arthur
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