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Just saw a thread about this topic from several years ago, someone else was thinking about doing this to their 38 flatdeck..cignificantother replied
Originally Posted by CignificantOther
(Post 3642595)
With the larger motors and drives, you have moved the COG further back than the originally designed TRS hulls. Additionally, you have increased the speed well beyond the average Flat Deck from the day. You are are also probably losing some leverage with the higher drive height. All of this "may" be effecting lift, etc, thereby changing the designed attitude of the hull. Extending the strakes may compensate for your weight/speed modifications. Years ago I suggested extending the lifting strakes on a friend's 24' P & D about 16". The drive had previously been raised, which in my opinion was reducing bow lift. The boat responded well, with more bow lift and about 6 mph. I've thought about doing it for several years on my Gun, but never wanted to grind on the original gel. I say....try it.
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I would have figured someone would have done this by now, kinda odd but it’s also a experiment that costs a good amount of money to try, I think people are afraid to grind on the boat they love lol |
Originally Posted by Full Force
(Post 4673379)
I would have figured someone would have done this by now, kinda odd but it’s also a experiment that costs a good amount of money to try, I think people are afraid to grind on the boat they love lol |
I was about to extend the strakes on the Gun, but bought the Tiger and later sold the Gun. I've been contemplating extending the strakes on the Tiger, as it is a similar set up with #6 Drives. Most of the non-stepped Tigers were rigged with 500 HP and Bravos. Longer strakes seem like a better option than adding a wedge near the transom, as Cigs with #6 Drives have plenty transom lift over 70 mph.
Like the Scarab, the strakes on a 41 Apache appear longer than a 42 Tiger. Supposedly, the addition of a single step on the Apache had very mixed reviews. Some stated the modification possibly helped cruising efficiency below 70mph, but not sure that was ever proven. https://www.offshoreonly.com/forums/...apache-071.jpg |
Originally Posted by MILD THUNDER
(Post 4673406)
I can see that. On the flip side, sucks when you spend a bunch of money and arent happy with the performance or handling of your boat. Guess is depends what you want out of it
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Check out how the old 39 sutphen runs at the 3:30 mark. 39ft straightbottom . Friend of mine that owns the old 39 Cig raceboat " Long Shot" told me the other day after seeing this thread, that the inner strakes on that boat were extended 80 inches. Strakes end 8ft from transom edge. |
If you guys are interested I might be inclined to fabricate some strake extensions . This has peaked my curiosity . RG. |
Originally Posted by MILD THUNDER
(Post 4674090)
https://youtu.be/9r_3g2xRs4g
Check out how the old 39 sutphen runs at the 3:30 mark. 39ft straightbottom . Friend of mine that owns the old 39 Cig raceboat " Long Shot" told me the other day after seeing this thread, that the inner strakes on that boat were extended 80 inches. Strakes end 8ft from transom edge. However, fast hands is 40mph faster with 200 less hp..... |
Originally Posted by MILD THUNDER
(Post 4674090)
https://youtu.be/9r_3g2xRs4g
Check out how the old 39 sutphen runs at the 3:30 mark. 39ft straightbottom . Friend of mine that owns the old 39 Cig raceboat " Long Shot" told me the other day after seeing this thread, that the inner strakes on that boat were extended 80 inches. Strakes end 8ft from transom edge. |
I would be willing to do this as I've considered the "wedge" mod. My boat porpoises noticeably without running tab unless you're accelerating or over 70ish mph. You can always take them off.... hmmm. Glassdave, you busy?
Tim, I doubt the mod would be much worth it unless you were getting over 80mph. |
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