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Old 09 June 2010, 05:11   #11
Daibheid's Avatar
Country: Ireland
Town: Cork
Boat name: Excalibur
Make: Excalibur + Zapcat
Length: 6m +
Engine: Merc120TDI,Tohatsu50
Join Date: Jun 2005
Posts: 261
Originally Posted by Question View Post
I thinnk it's a great idea but it's rare to see a prop without some marks on it's edges no matter how careful we are with them. I'd expect teh prop must be made out of glass-filled polycarbonate or a similar engineering type plastic to be anything like rigid enough to transmit power. If that's the case as soon as it picks up a few nicks and scratches it'd saw an arm almost as fast as an alloy prop.
On the plus side - the fat leading edge would definitely cost some efficiency but going by the speed impact of the propguard on my Zapcat, this new prop would probably be way more efficient than a guarded prop.
Of course that's without the slots in the blades which make no sense. You don't see aircraft wings with slots out of their main lift surfaces.

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Old 09 June 2010, 05:57   #12
Country: UK - England
Town: Ipswich
Boat name: Jammy Dodger
Make: Avon Adventure 7.20
Length: 7m +
Engine: 200 Yamaha
Join Date: Dec 2008
Posts: 345
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If you use your head I cant really think of a reason why you would need a prop guard....

Shame we live in the real world and not the ideal world... (everyone using their heads!!)

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