Hydrofoils

Ask current owners for advice before taking the plunge !
pritch
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Hydrofoils

Post by pritch » 11 Mar 2018, 12:47

Now I've got a big lump on the back I'm really tempted to get some . The only stories I seem to hear are good stories .
I guess the only thing that puts me off is drilling the plate.
Does anyone use these or have an opinion?
Thanks

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harrison
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Re: Hydrofoils

Post by harrison » 11 Mar 2018, 14:04

Well never had any I’m afraid, but do have an opinion, which may or may not be complete boll..ks!

Unless you’re having real problems getting up onto the plane, or want to plane at lower speeds, don’t, as you will lose top speed/performance. Only beneficial on slightly underpowered heavy boats and a sub 4 metre sib with 20hp certainly isn’t that.

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mattswan2512
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Re: Hydrofoils

Post by mattswan2512 » 11 Mar 2018, 15:54

I would concur with harrison.....dont fix what is not broken....i have fitted them to a solid hull and it did little other than reduce my speed further.....would deffo not get the drill version as you can get the dolfin clamp round fin.

Its your money ultimatly but it will reduce speed and u may plane a wee bit quicker. What is your intended aim bud?
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pritch
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Re: Hydrofoils

Post by pritch » 11 Mar 2018, 18:21

mattswan2512 wrote:I would concur with harrison.....dont fix what is not broken....i have fitted them to a solid hull and it did little other than reduce my speed further.....would deffo not get the drill version as you can get the dolfin clamp round fin.

Its your money ultimatly but it will reduce speed and u may plane a wee bit quicker. What is your intended aim bud?
I've heard they stop the bow from rising ?

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Paul B
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Re: Hydrofoils

Post by Paul B » 11 Mar 2018, 19:18

I have them on my outboard, when I had my T32. The bowrise was savage and it was bordering on dangerous if you gave it the full beans from standing still, the foils cured it , quickly bringing the bow down , yes I lost a bit of top end speed, but the difference in ride was worth it,

Have to try my new T38 without them to see if I need them as yet
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mattswan2512
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Re: Hydrofoils

Post by mattswan2512 » 11 Mar 2018, 19:19

Yes that is a benefit of sorts for sure.....i dont know if you could maybe source a second hand fin to try (clamp style to avoid drilling) that way you can save a bit of wonga and test out the effects....be interesting to hear the results. Best of luck.
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pritch (11 Mar 2018, 19:23)
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Paul
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Re: Hydrofoils

Post by Paul » 11 Mar 2018, 22:09

If its excessive bow rise you're trying to overcome then I'd first experiment with shifting the weight within the boat :idea:
In both of my sibs I've extended the fuel line so the 'bulk' weight has been in the bow curing the issue, along with anchor etc :idea:
I also had a 20hp so I'd imagine you'll be able to 'pop' it onto the plane in an instant with the weight forward :|
I'd definitely investigate weight distribution and OB trim prior to fitting fins .... a last resort IMO :|
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Martin
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Re: Hydrofoils

Post by Martin » 12 Mar 2018, 08:02

One up in my old T38ie was a nightmare for bow rise, if I had the nipper in - a slow wind up of power was the order of the day so that prolonged the bow rise.
After many hrs of homework I came to the conclusion the only aftermarket purchase should be the stingray junior hydrofoil. I purchased it, fitted it and never removed it again as the difference was unbelievably so much better.

When I sold the T38ie I tried the junior and 15hp on the Frib, a pointless test but thought I’d do it anyways.. no hydrofoil required on the Frib,it made no real difference.

Paul B now has my old stingray junior, you’ve read his post above no doubt.
Imo, try everything else.. if no joy then look at a stingray junior, it worked for me!
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pritch
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Re: Hydrofoils

Post by pritch » 12 Mar 2018, 16:53

Many thanks for your input.... Plenty to think about there. :thumbsup

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Re: Hydrofoils

Post by PeterM » 26 Mar 2018, 11:10

I do have a set that I plan to take off a new to me 15hp Johnson . They are the drill type - but are yours if you want them (once I Have them off over easter) . I'll take some pics this week.

I do have them on a small RIb and they work very well on that for me with a heavy OB and short waterline hull.

Pete

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