Fighercat Cheetah 6s2p

[tiqueman]

Crap now Brian knows my secrets... LOL. See you Sunday.

[RCKong]

yep... I have a set of prop shop SS 4714/3's I might test out too this weekend.

[monojeff]

Yes I do now understand what your saying.
It is clearer now with the extra details.
I was a bit confused on things that were being described and how they related to the way the boat rides.
In a nut shell at the moment the boat basically never gets on step especially with the twin motors and lack of adjustment.

I see now in the picture the last step does have a negative angle and would cause the issues you have described.

[tiqueman]

It gets on step, its just when it tries to lift, its forced back down... so if thats what you mean by it doesnt get on it, then no? lol

I still feel it is a fantastic boat, even as is right out of the box. Super stable. And Im not trying to imply this modification HAS to be done or your boar will suck... NOT AT ALL, its just going to help tru it a bit. Its the exact same concept as i mentioned in my first comment about truing a hull, or blueprinting. As is, it has like a "step hook". And just like described as in a mono, if a mono has hook, even if the transom botom is the same level as the area of the hull before the hook, being the last part of the hull that touches the water is angled down, its going to cause the nose to dig. Same principle applies in a cat.

Batteries.... Just had to say it because its what the thread is really about. man we are off subject.

[properchopper]

Man I'm really breakin' my promise to stay back, BUT I just had a thought (happens at random intervals). Seems my customer's Cheetah and mine are both single motor boats.
Neither of us have experienced a "too wet" running attitude (so far at least). And given that one condition that contributes to running too wet, or if you will, nose down, is the effect of prop lift. When lift picks up the rear, the nose goes down, and there's the crux that might be operating in dual motor rigs. Twice the prop lift with two props. Might be worth looking into. OK, now time for a cheeseburger

[tiqueman]

A wise observation... however lol... same props work fine on all my other twins. Its the hull. I can make the worst hull run better with strut/ stinger angle. But I don't like Band-Aids. Those effects typically scrub speed and cause erratic behaviors on and off throttle. Not my cup of tea. I can't believe a truing hull argument has gone on this long. Its been proven thousands of times already.

[tiqueman]

Wait.. I wanna burger too!

[monojeff]

It's a very informative thread regardless talk about a lot of parts of setup and how they effect things.

I see it as this if the boat has built in tabs for some setups maybe that's a good thing.
Don't get me wrong making that boat capable of going faster better is good for some but not everyone will handle it so well.
It's like a wheelie bar....

[properchopper]

A wise observation... however lol... same props work fine on all my other twins. Its the hull. I can make the worst hull run better with strut/ stinger angle. But I don't like Band-Aids. Those effects typically scrub speed and cause erratic behaviors on and off throttle. Not my cup of tea. I can't believe a truing hull argument has gone on this long. Its been proven thousands of times already.

Now that you mention it, with the positive strut angle on mine I was experiencing some Oh-So charming (butt clenching) wheelies when I punched it at 1/2 to /3/4 throttle

Enjoy : http://www.youtube.com/watch?v=OJi4bln-hHQ

[tiqueman]

Awesome.

You're right on Jeff. And in glass water, its a wicked machine. In chop, not so much. Those wheelie bars effect too much when its bouncing around and your boat disappears into the abyss for 5 seconds or so... which is equally butt clenching lol.

[monojeff]

Trust me I know how that is with my scale boat I have been under equally long at times trying to run in some serious chop!
I hope you have good pics of the process you took to do the pads on this!
Also do you have a build thread going for any of them?

[tiqueman]

Unfortunately no and no. I've been doing so many builds its too time consuming to post every detail on all. My twin cheetah took 5 or 6 months because I was so involved in other things. My ride pad truing is pretty straight forward. Filler, block sand, repeat until u like it.

[tiqueman]

Well gents. the results are in. We had a test n tune day today at our club meet. I must say, one would be foolish not to correct the angled last step in this hull. No adjustments were made other than the filling and it was a totally different beast. Im going to have to level out my stingers because in chop I think its going to be running too light. We had an unusually calm day at the park today which was great because it showed how nicely the hull was actually running. I had a few electrical problems to sort in a one of the escs, but finally after half the day I was able to pull more than one lap. Video to be up as soon as our videographer from the club loads them. Ill post it here but can also be found in our "run day reports" thread in the club section under west Florida Model Boat club.

[monojeff]

Sweet! Good news!

[tiqueman]

Awesome news Jeff. I cannot tell you how pleased I was w/ the outcome. I knew from past boats Ive had to "help" it would make a difference, Im just amazed how much better it got.