Fightercat/Cheetah Insanity Build

[Insanity Plea]

Is everyone running the centerline of the strut barrel close to the bottom of the sponsons? I'm not sure I'll be able to open my slot up enough to get it that far down.

[Insanity Plea]

Slow going but got this done yesterday, didn't turn out bad for my first time...

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[Prodrvr]

Just came across this and have to ask...what's the purpose of off-setting the strut?

[Insanity Plea]

Sometimes propwalk occurs and you have to set your rudder at an angle for the boat to track strait. Of course, if your rudder is at an angle, you're going to scrub off speed. From what I've gathered, propwalk is more of an issue with gas boats more than electric boats.

[Prodrvr]

I guess shimming the strut would srrub a tiny bit of speed too. I'll have to try off setting the strut on the Geico build.

[Insanity Plea]

Shimming will scrub a little off. A skeg strut seems to help eliminate the propwalk also, just creates more drag. As I stated, I think this is mainly a gas issue. The aeromarine conquest is very well known for it in particular (which is my cat of choice). As Fluid stated, he hasn't seen a negative result from doing it but also couldn't confirm it's needed.

[Prodrvr]

I had an avenger pro with a CY 26cc once. Damn thing would always flip at 58 mph lol.

[fweasel]

I guess shimming the strut would srrub a tiny bit of speed too. I'll have to try off setting the strut on the Geico build.

FWIW, I've not experienced that issue on upgraded, fast V3 cats personally.

[modvp55]

Your photos show kevlar not over seems in bow and while a pain to do needs to be done. I have done it with small pieces using an acid brush taped to a stick so I can reach the tip, not always best looking but does help.

[Insanity Plea]

I had an avenger pro with a CY 26cc once. Damn thing would always flip at 58 mph lol.

A touch of negative strut angle and maybe raising it just a little might would have solved that. The CG could have been too far back also, those boats need the motor to be mounted as far forward as possible.

[Insanity Plea]

FWIW, I've not experienced that issue on upgraded, fast V3 cats personally.

I echo this, not so much from experience but I've read a lot of build threads in here and have never ran across someone mentioning it before

[Prodrvr]

FWIW, I've not experienced that issue on upgraded, fast V3 cats personally.

I'm doing a ground up build on a V2. Bought it as a bare hull.

[Prodrvr]

A touch of negative strut angle and maybe raising it just a little might would have solved that. The CG could have been too far back also, those boats need the motor to be mounted as far forward as possible.

I had the motor as far forward as it would go. I had to clearance the hatch saddle so I could get my wrench in there to get to the mount bolts.

[Insanity Plea]

I had the motor as far forward as it would go. I had to clearance the hatch saddle so I could get my wrench in there to get to the mount bolts.

Definitely not a CG issue, I've ran my two with an extended Speedmaster strut and had good success. Setting up a new one for next year with a standard skeg strut so I'll see how much of a difference it makes, this one is going to be for offshore so I need it to carve the tight turns.

[Insanity Plea]

Making progress slowly, I'm mainly working on it while passing through the garage, 10-15 minutes at a time... Working out the gelcoat cracks in bottom of sponson was easier than expected, using west marine epoxy putty after grinding out the cracks.

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