cheetah cat p-cat single setup

[finlor44]

Looking for ideas on hardware, motor and such. I've got the hull ordered from here, with the intent to oval race in p-cat single. 4s. leaning towards the TP 4050 1950kv. 180 amp hobbywing esc. Hardware setup is in the air. Should I run a Skeg Strut? Like a Speedmaster small cat skeg strut? or not needed. Just would really apricate any advise.
Thanks Always Guys,
Wayne

[properchopper]

Hello Wayne,

Cheetahs are about as perfect a hull as you can get. For P-Cat it'll make a good choice as it's wider than many of the zoomy straightline cat speedsters commonly available. I built my first one for personal fun/racing and since I'm what could be described as an "overbuilder" I went with the larger Speedmaster skeg strut (which required stepping down the stuffing tube) because it should provide a better bite in the turns - especially when the racewater gets bouncy. Same with the larger Speedmaster rudder, which I cut down some. The ones I built for customers follow the same theme so there won't be any failures due to insufficiently strong components. The RtR Cheetahs I've seen have small bracket-offset rudders which I'm betting don't look so good after a good acrobatic spill.

I originally went with a Neu 1521 1.5D (1890KV) basically because I had one sitting around, but as I became close to the TP Power folks (having the 4050 as the go-to motor for my FE30 clientele) I put a 4060 2040KV in my Cheetah and can go up (so far) to a 450/3 blade or even a 452/2 I used for 2-lap. The larger TP Power 4060 would be my choice - no sweat in heats.

If you do end up with the 4060 motor go up to a Swordfish 220 or better yet the 240. Heavy duty during the build equals less maintenance later on

I couldn't locate my original build thread but scroll thru this - you'll see the strut & rudder in one of the pictures

https://forums.offshoreelectrics.com...OATBUILD/page3

early testing

https://www.youtube.com/watch?v=Cl5ebHR6wR4&t=5s


acheetah4.jpg acheetah2.jpg

[Jesse J]

Hey Tony, could you pretty please weigh one of your p cats ready to race, minus batteries? Assume your batts are about a pound each.
Thanks for sharing your divine wisdom and your magic setups!
Jesse

[properchopper]

Darn scale took some "masssaging" to come to life BUT the Cheetah sans 4S 5000's (but with a small Rx battery (the Hydra 240 BEC board went to heaven ) weighs 7.5 lbs. Seems light to me but as a single it runs loose and fasssst

Found an early pre-dial vid : (Neu 1521 1.5D)

https://www.youtube.com/watch?v=vh4QYT2iIh0

[Jesse J]

Nicely done as always, Tony. Thanks for the info.
So with batteries.. she could have been ticklin 10 lbs ?!?

[finlor44]

Hello!
Thanks soooo much for the advise!. So here is want I plan thus far to throw in the new single cat, TP 4060 Motor (measures 40mm x 92mm), 1950kv, . Mamba Monster X 8S esc. yes, running 4s. Namban legit! offset Rudder-strut set-up. Mr. Jim V, from Texas speaks highly of you, and your experience.

What prop should I start with?

Thanks again!
Wayne

[properchopper]

Nicely done as always, Tony. Thanks for the info.
So with batteries.. she could have been ticklin 10 lbs ?!?

aYes.jpg

I sampled some 4S 5000's - right at 1.2 lbs Sooo.. Loaded for battle I'd say: YES you are correct Sir - 10 lbs wet on the mill

[properchopper]

Hello!
Thanks soooo much for the advise!. So here is want I plan thus far to throw in the new single cat, TP 4060 Motor (measures 40mm x 92mm), 1950kv, . Mamba Monster X 8S esc. yes, running 4s. Namban legit! offset Rudder-strut set-up. Mr. Jim V, from Texas speaks highly of you, and your experience.

What prop should I start with?

Thanks again!
Wayne

Wayne, I started with an Octura 447/3 - ran really nice & cool + acceleration out of turns is enhanced with the 3-blade - something to consider in heat racing. I'm sure you can go larger - I've run a 450/3 and a 452/2 but only shorter runs - with props it's test,test,test.

Good times with Mr. JV at the LA SAWS way back when.................