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new mast boom

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1 year 6 months ago #106 by Peter_G2602
Peter_G2602 created the topic: new mast boom
Hi.
looking to purchase a new mast and boom (with gnav) for a wooden alpha grad.

superspars website identifies M1 section for the grad.
Selden website does not mention Grads but Pinnell and Bax mention Zeta and Kappa as being appropriate.

I haven't sailed a grad for a while (i am sailing my Solo at present but that needs tic so intend to race the grad, when its up to spec, this autumn winter. Soooooooo my experience is ltd. The one other grad at my club is one of the new designs and i note that uses a superstar.

any thoughts/advantages/disadvantages would be appreciated.

regards

Peter

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1 year 6 months ago #107 by Stewart
Stewart replied the topic: new mast boom
Hi Peter

I converted my Alpha 2880 to gnav a few years ago. I bought a Rooster-spec M7 and all the bits. You need a stiff mast for a gnav, as it bends alarmingly under the influences of the gnav, particularly downwind. Have you got a new-rules mainsail? Needs to be loose-footed sail.

I didn't need a new boom, as the gnav kit I have slides in the sail track. I've seen others which have a separate track, which looks a hassle. You must also have a captive gooseneck

Graduate 2880 "Stinger"

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1 year 6 months ago #108 by Peter_G2602
Peter_G2602 replied the topic: new mast boom
Thank you. I am now getting quotes for m7 and boom. I am planning to go to emberton park open to get some ideas on rigging.

Regards

Peter

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