Topic: Propellor to suit Graupner Speed 480 (Read 1978 times)

pneumatician · « **on:** July 16, 2009, 06:27:28 pm »

As a new convert to boats advice required. Our club is running a "foamy" competition which to start with sounded quite simple. Make a boat 24" * 9" to carry 1lb of water as fast as you can around an obstacle course.
The boats built motor (385) fitted with the as reccomended by the supplier 40mm 2 blade prop. This motor burnt out but as they are only a fiver I replaced it with a 480 this also quit.
Is the prop wrong? I have now lashed out and purchased a Graupner Speed 480 what size prop would you recommend.

Steve

stallspeed · « **Reply #1 on:** July 16, 2009, 06:32:37 pm »

Spot on there!.............too big.

DickyD · « **Reply #2 on:** July 16, 2009, 06:41:23 pm »

You need about a 35mm 2 bladed prop with a very fine pitch on it.

What you dont want is a racing type prop.

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Author Topic: Propellor to suit Graupner Speed 480 (Read 1978 times)

pneumatician

Propellor to suit Graupner Speed 480

stallspeed

Re: Propellor to suit Graupner Speed 480

DickyD

Re: Propellor to suit Graupner Speed 480