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Old 01 October 2013, 16:40   #11
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Fins worked for me. As xs400..not worried about max speed, sorted excessive bow lift and plane speed dropped to an acceptable 12ish knots.

With power trim ....no negatives for me except loss of a couple of knots off top end speed.
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Old 01 October 2013, 16:42   #12
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Fins worked for me. As xs400..not worried about max speed, sorted excessive bow lift and plane speed dropped to an acceptable 12ish knots.

With power trim ....no negatives for me except loss of a couple of knots off top end speed.
I have a tiller engine without power trim so would it have the same results ?
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Old 01 October 2013, 16:45   #13
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I have a tiller engine without power trim so would it have the same results ?
Possible, but you may have to accept more of a compromise..and manually change trim settings more often. Maybe find a set of clip on fins?
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Old 01 October 2013, 16:46   #14
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I have a 10X13 stainless prop and i do get max rpm at WOT, was thinking weather a 10X15 may be better?
Going up in pitch isn't going to help, it'll make your holeshot even worse. An 11" might be the way to go.
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Old 01 October 2013, 16:47   #15
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Going up in pitch isn't going to help, it'll make your holeshot even worse. An 11" might be the way to go.
Thanks so you suggest an 11" prop over fins?
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Old 01 October 2013, 17:06   #16
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Thanks so you suggest an 11" prop over fins?
It would be my choice, maybe not the right one, but it's the way I'd go. That's after trying all the no cost options, make sure the engine is at the correct height & trimmed. Move some weight around, shift it forward, generally play around & experiment. Where is the towrope for the ringo attached to the boat, is it high on an "A" frame, or low down? Propping is a black art, a lot of trial & error is involved.
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Old 01 October 2013, 17:13   #17
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It would be my choice, maybe not the right one, but it's the way I'd go. That's after trying all the no cost options, make sure the engine is at the correct height & trimmed. Move some weight around, shift it forward, generally play around & experiment. Where is the towrope for the ringo attached to the boat, is it high on an "A" frame, or low down? Propping is a black art, a lot of trial & error is involved.
The towrope is on the transom, maybe ill just have to invest some money and have a play and see whats best, thanks for the help anyway
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Old 01 October 2013, 17:17   #18
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The towrope is on the transom, maybe ill just have to invest some money and have a play and see whats best, thanks for the help anyway
You're welcome, sorry I can't be more conclusive, but as I said, it's a black art. Try & borrow different props rather than buying, swapping them over is easy enough.
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Old 01 October 2013, 18:03   #19
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Hi, i have an xpro 380 rib with a 25hp evinrude (tiller) and was wondering if hydrofoil fins would be any good?
I had very similar set up (3.8m Valiant + 25hp two smoke manual trim) although weight further forward as we had console, Hydrofoils worked for me they made a huge difference when towing ringo's and wakeboarding far easier onto the plane and would plane at lower speeds (only ever pull teenagers/small adults it would struggle regardless with anyone over about 12 stone)
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Old 01 October 2013, 18:12   #20
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I had very similar set up (3.8m Valiant + 25hp two smoke manual trim) although weight further forward as we had console, Hydrofoils worked for me they made a huge difference when towing ringo's and wakeboarding far easier onto the plane and would plane at lower speeds (only ever pull teenagers/small adults it would struggle regardless with anyone over about 12 stone)
That's exactly what i want, ill invest in some fins as they are only 20, thanks for the response
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