Contra-rotating propellers

Contra-rotating propellers

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15 November 2012 at 08:39 #37590
adrian dwyer
Participant
@adriandwyer19693
Could anyone suggest where I could get a pair of contra-rotating propellors from

26mm diameter, 2 blade, with a 3mm shaft. Its the 3mm shaft that seems to be the problem.

These are for a fast electric boat.

All suggestions are very welcome
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15 November 2012 at 08:39 #2203
adrian dwyer
Participant
@adriandwyer19693
Sourcing Contra-rotating propellers
15 November 2012 at 08:55 #37591
Bob Abell 2
Participant
@bobabell2
Hello Adrian

I was involved in high speed motor boats some time ago and had the same requirement

It appears that handed props for high speed are not available………Just LH only

LH props will not unscrew themselves, going forward and may be a safety issue?

Here`s my setup…….

Both props are LH and was not a problem

Bob
15 November 2012 at 11:08 #37596
neil hp
Participant
@neilhp
Prop Shop will supply cast bronze and brass high speed props for your boat to any requirement……and they are beautiful stuff too.

see below

**LINK**

neil
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