Offshoreonly.com - Straight bottom Cig lifting strakes

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That’s my thought too, just wondered lifting bow more would gain speed in any case I would assume but if only 1-2 mph for sure not worth the $

Quote:

A problem with strakes that run all the way to the stern is ventilation. If they are not placed properly they can act like a tunnel that carries air under the hull into the propellers.

Something to consider.
Tres martin said it would make no difference since the strakes are out of the water when running. Guess they`d have to be extended far enough to be in the water.

Quote:

Originally Posted by ICDEDPPL (Post 4674270)

Something to consider.
Tres martin said it would make no difference since the strakes are out of the water when running. Guess they`d have to be extended far enough to be in the water.

For sure @ LOTOhttps://cimg5.ibsrv.net/gimg/www.off...3e16005108.jpg

Yes, but these boats run so deep. I remember your videos of you and Joe (MT) posting about how the water breaks just in front of the windscreen, and on newer, stepped, pads, or other hull designs it's considerably aft of that (hulls that run "on top" of the water). I would never really challenge what Tres says as he has all the experience and knows what he's talking about. I guess the $10-20K question is, who has done it on a Top Gun and has it worked?

Only thing I'd be worried about is undesirable handling, turning at high speeds, chine walk, etc. Is there any concern that the strakes come into play when turning the boat? Is there a "race hull" designed 38 TG with extended strakes? You'd think it would be a common modification on the non-stepped boats with 900+ hp to get these things over 100 mph. What about the 41 Apache, same hull right? There's probably a reason we don't see it done....

Edit: ^^^ that LOTO boat looks like it's coming "out" of the water, not necessarily running, or looking at the average time that the hull is in the water.

Quote:

Originally Posted by F-2 Speedy (Post 4674275)

For sure @ LOTOhttps://cimg5.ibsrv.net/gimg/www.off...3e16005108.jpg

question is, is that running shot showing it during a porpoise or simply bouncing off waves? I doubt that its from simply the props carrying the boat like that.

I also think that's a 35', no? And x2 what Joe said.

Judging by the picture in post 33 . you would have to extend the strakes at least 7 feet further back to have any impact .
Then the question become what impact does it have on stability ?
ie. chine walk . RG.

wave bounce, main channel Saturday around noon.......I really don't remember much if any porpoise in this boat running on my home lake in calmer water.

Edit: I would think a high number of these boats that have this issue are not in their original configurations, so the question is, did they porpoise when new ?