JAE 45 ski mods

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charles siler

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So while you guys are talking about the ski what is this im hearing about the outside sponson catching and flipping the JAEs at high

speeds . Every one that are doing 85+ are having this problem it seems are we going to angle the Skis also . Im looking at a 101

single JAE and the outside sponson is going to be rounded or beviled like the eagles crapshooter and others . So whats up sounds like the next step also thanks Charlie
 

twox45

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Jun 24, 2006
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I made a drawing for a 2 degree ski and compared it to the old 3 degree ski. The new ski is about 8" longer, is that correct?
Paul, after about 10" at 2 degrees you can then change the angle and take it up quicker at 4 or 5 degrees. You should end up at about the same length.

David
 

twox45

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Jun 24, 2006
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322
So while you guys are talking about the ski what is this im hearing about the outside sponson catching and flipping the JAEs at high

speeds . Every one that are doing 85+ are having this problem it seems are we going to angle the Skis also . Im looking at a 101

single JAE and the outside sponson is going to be rounded or beviled like the eagles crapshooter and others . So whats up sounds like the next step also thanks Charlie
Charles, about 2 years ago I built a sponson almost identical to yours and sent it to Ron Zaker to test. It turns out that the turn fin was causing the problem. What you have done will not hurt anything and might even help a little. But even with the edge taken off the sponson the JAE design still depends on the turn fin holding in the corners. Thanks for posting your picture. Let us know how you boat runs.
David
 

Richard Hartley

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Oct 15, 2012
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564
Want to take this opportunity to Thank Joe for the modified skis he sent

Called him and asked for them and and one for Tims boat and he shipped no hassles

Service at its best

Thank You Joe!

Richard
 

Geraghty

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May 16, 2003
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1,597
I made a drawing for a 2 degree ski and compared it to the old 3 degree ski. The new ski is about 8" longer, is that correct?
Yes that will work just fine.........You can also make the ski the same length and just have another flat plane surface the last 2-3"

of the ski go straight up to the bottom of the boat......."don't make it rounded surface up to the bottom of the boat"......
 

SayMikey

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Feb 23, 2003
Messages
11,485
So while you guys are talking about the ski what is this im hearing about the outside sponson catching and flipping the JAEs at high

speeds . Every one that are doing 85+ are having this problem it seems are we going to angle the Skis also . Im looking at a 101

single JAE and the outside sponson is going to be rounded or beviled like the eagles crapshooter and others . So whats up sounds like the next step also thanks Charlie
Charles did you get the pipe I sent you?
 

charles siler

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Moderator
Joined
Oct 29, 2011
Messages
1,980
So while you guys are talking about the ski what is this im hearing about the outside sponson catching and flipping the JAEs at high

speeds . Every one that are doing 85+ are having this problem it seems are we going to angle the Skis also . Im looking at a 101

single JAE and the outside sponson is going to be rounded or beviled like the eagles crapshooter and others . So whats up sounds like the next step also thanks Charlie
Charles did you get the pipe I sent you?
Dude thats a nice pipe . Im hoping to get my 1/8 scale in the 70s

So while you guys are talking about the ski what is this im hearing about the outside sponson catching and flipping the JAEs at high

speeds . Every one that are doing 85+ are having this problem it seems are we going to angle the Skis also . Im looking at a 101

single JAE and the outside sponson is going to be rounded or beviled like the eagles crapshooter and others . So whats up sounds like the next step also thanks Charlie
Charles did you get the pipe I sent you?
 
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MikeP

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Mar 13, 2002
Messages
1,460
Thanks for the drawings Paul, This info is very timely for my build. I have already made a ski and was wondering how to modify it. Without 2 angles it would be quite a long ski. The 10" at 2deg then 4deg. looks just right.

MikeP
 

XtremeRcBoats

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Jan 31, 2002
Messages
1,102
Mike, I had the same thought. Do you have enough info in the pdf or need another file type? I'm not very good with autocad so i converted the original drawing to coreldraw and made the new ski with this programm.
 

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