Cirrus Icon Development

Unless I've lost my understanding of fundamental physics, it's almost identical to a normal rope
kicker but with a bit of mechanical advantage from the vertical bit and a hell of a lot of stress
induced around the joint on the boom. I suspect it also loads up the gooseneck big-time, although
I haven't done the maths to prove it. Not very good IMHO.

[Edit] I'm talking about the thing Peaky posted, not the other curvy stuff. Big problem with the curvy stuff is that
you'd have to get your mechanical advantage elsewhere - on a rope kicker you can get it with a cascade between boom
and mast.

Edited by Mikey 14778

I think I've got you. So it's basically a long, rigid strop from the boom to the purchase at the mast with a dod of elastic attached to the gooseneck to hold it the right way round.

We use boomerang kickers on a certain 21ft keelboat. The idea is to clear the coackpit coaming, but as a side effect it does give the crew more room.

They are made out of 6mm ali plate and have to be about 100mm wide at the corner to be strong enough.

See also 'Tinley Kicker' on X-boats.

Mike,

It's the 21st century.

Think about about a carbon boomerang.

Cheers.

Originally posted by Norbert .

Would you get enough travel in the blocks with this system?  If it was more of a boomerang that pivoted on the boom near the gooseneck it would act like a lever and not need so many pulleys?