sponsons relocated

[psycho rxp]

I decided to try out the sponsons in a new spot. I moved them to the rear about 4" or so. I ran them in some mild chop today, and big difference in hookup in the rough stayed planted better and cornered pretty well also. One thing I didn't like was wave jumping with them like this, It wouldn't get as verticle(like an RXT), and would land rougher. I'll have to do some GPS runs when I change wear rings to see if I lost or gained any speed. No porpoising with them like this so far. I'll back to back test some positions when I get my reflashed RR ECU back.

[Green Hulk]

Jason, you read my mind. I was thinking about trying this today, but had too much other stuff to do. Looks interesting!

[psycho rxp]

Maybe this works like the Pro series block offs? , or instead of?? right now my wear ring is shot , but I GPS'ed the day before, and within 1mph difference, but I will retest with a new ring to be sure. I only had to drill 2 new holes

[Water4fire]

Looks similar to Les's sponsons.
I like the way they come WAY back.

[psycho rxp]

thats where I saw them back that far. Only his look shorter.

jerry , are yours still angled..stepped?

[Green Hulk]

Yes they are, but I don't like them that way.

Maybe moved farther back and stepped will be the way to go.

[01xdime]

I wonder if this would do anythign for the GTX? It sounds interesting but the whole jumping thing is important to me.

[11]

You better come up with some sort of reinforcement for the rear of your sponsons or they will break, especially with a boat of that size and weight.

I have seen sponsons with a missing rear bolt break that the 3rd bolt on much lighter skis.

[Shibby1485]

i'd highly suggest you guys read the article pistonwash and hydrotoys posted on the yami site and here on the "hull truing" thread... if u read that article already, i bet your mind was really turing some wheels with ideas.. if u have not read it, you are in for a huge education.

the article is all about handling, sponsons, lift, thrust lines, parabolic vs symmetrical, hook-up, and sponson positioning up, down, back and forward.

important aspect i learned is that creating lift makes your ski SLOWER = more wet surface... putting the sponsons up all the way reduces lift, thus equals alot less wet surface, but at a sacrifice to few other things... so many things working against each other and alot of key players in the handling, hook-up, and speed game.

definitely worth a read

[Green Hulk]

Shib, creating lift in the back of the ski makes it slower as it makes the nose dig in.