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Old 11-20-2017, 03:47 PM   #21
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Wow.
I don't know for sure but I would have thought Australia, being the over regulated country it is, would have some sort of regs in place prohibiting that due to point loading the straps.

Here, I've never seen them intrude into strap space, always mid ship install like in this pic.
I assumed it was for lifting reasons because I believe, like parravanes, they would work better in the rear third of the hull.

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Old 11-20-2017, 05:09 PM   #22
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I usually see blocks used with travel lift straps and rolling chocks (bilge keels). They take the stress off the chocks and keep the straps away from topsides. Carpet covered of course.
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Old 11-20-2017, 05:29 PM   #23
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Rebel, on your NP42 did you have a naval architect design the bilge keels? What difference in handling do you see at rest and underway?
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Old 11-20-2017, 05:34 PM   #24
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Quote:
Originally Posted by Sailor of Fortune View Post
I usually see blocks used with travel lift straps and rolling chocks (bilge keels). They take the stress off the chocks and keep the straps away from topsides. Carpet covered of course.
Are multiple divers holding blocks in place needed for the lift out?
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Old 11-20-2017, 05:57 PM   #25
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Are multiple divers holding blocks in place needed for the lift out?
No, they are set on straps and positioned by single diver. They have lines to keep them attached to straps. Same way blocks are used to keep slings from "pinching" prominent rub rails. Blocks come up with slings after boats launched and backed away from travel lift. its usually only one set of slings thats an issue (if at all).
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Old 11-20-2017, 08:42 PM   #26
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The fellow that installed them has put them on, he says thousands of boats. No naval architect involved with these. Independent Shipwrights, Coombs BC, Canada did the work. They work well, no downside, other than some slapping when beam on to larger waves. Cheap to install. Maybe 10 North Pacifics have them. I consider it money well spent.
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Old 11-20-2017, 10:31 PM   #27
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Quote:
Originally Posted by Simi 60 View Post
Wow.

Here, I've never seen them intrude into strap space, always mid ship install like in this pic.
I assumed it was for lifting reasons because I believe, like parravanes, they would work better in the rear third of the hull.

The most effective placement for them on the hull shown (full displacement) is at the widest point of the hull.
Has little to do with lift straps
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Old 11-24-2017, 01:38 PM   #28
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Very cool. Thanks for posting this.
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Old 12-06-2017, 12:04 AM   #29
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I've read that people notice a marked difference in turning at slow speed after having rolling chocks installed, such as when making a 90 degree turn from the fairway and entering a slip bow first. They mention that their boats don't "skid sideways" as much during the turn anymore, but feel more like they are "on rails". This true?
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Old 12-06-2017, 09:08 AM   #30
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I have noticed, nothing different in the slow speed handling of the boat. Other installations may be different.
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