32" River Cat

[Howard Lee]

I'm starting a new build and this 1 will have some new things. To start i ordered a Neu 1527 1.5D and it will run on 11s. I'm working on a new hatch lock but 1st i will reinforce the hull so it can take some high speed flips or not. lol

[keithbradley]

Very sweet looking boat! I should know, it looks just like mine.

The 1527 should be plenty of power. Im interested to see what you do with this. How are you going to get 11s in it? Are you going to use smaller capacity lipos? I run mine on 8s and had to knotch the hull to get the batteries in...

[Howard Lee]

I'm going to keep my 5s to the left and 4s to the right and a 2s that i will move to get my weights right. I might just run it on 5s and 5s, not sure. I'll know more as i start building it.

[6sHyper]

you are totally nuts!!........this will be on my watch list...........

[keithbradley]

I'm going to keep my 5s to the left and 4s to the right and a 2s that i will move to get my weights right. I might just run it on 5s and 5s, not sure. I'll know more as i start building it.

Oh, ok. That makes sense.
I ran series of 3 and even 4 lipos in one of my larger monos (6x3s to make 9s2p, and 2x3s+2x2s to make 10s2p). I found out that when running more than two batteries in series, shortening the wires as much as possible helps A LOT. I shortened mine up as much as possible and got an extra 2mph just from that, so you may want to keep that in mind when you lay things out.

[Brushless55]

[Jacked1]

[10gauge]

I am going to save you $260! I am not opposed to crazy setups, but running 11S goes against the laws of electromechanics on that motor. On a 1527/1.5D the most you need to run is 5S-6S.

1527/1.5D: [1500kv] x [11S] x [3.7V/S] = 61,050 rpm. The motor is rated for 60,000 rpm, probably with no load. I'd keep the rpm within the 30,000 - 35,000 range for a hot setup. Besides, 1527 is wasted power, weight, and money on a 32in cat. The most I'd use is 1521.

[keithbradley]

I am going to save you $260! I am not opposed to crazy setups, but running 11S goes against the laws of electromechanics on that motor. On a 1527/1.5D the most you need to run is 5S-6S.

1527/1.5D: [1500kv] x [11S] x [3.7V/S] = 61,050 rpm. The motor is rated for 60,000 rpm, probably with no load. I'd keep the rpm within the 30,000 - 35,000 range for a hot setup. Besides, 1527 is wasted power, weight, and money on a 32in cat. The most I'd use is 1521.

I would have the same thoughts, but in this case, he is trying to build a 100+ mph cat. His last setup was a bit of a time bomb but he's made a number of passes with it, and it's fast. Howard has been advised against extreme RPM but I think he is just seeing how far he can go before it simply doesnt work.

This boat wil probably go fast if it doesnt go through ESCs every run.

[TotalPackage]

I would have the same thoughts, but in this case, he is trying to build a 100+ mph cat. His last setup was a bit of a time bomb but he's made a number of passes with it, and it's fast. Howard has been advised against extreme RPM but I think he is just seeing how far he can go before it simply doesnt work.

This boat wil probably go fast if it doesnt go through ESCs every run.

almost all the neus can handle 50 volts or better no matter the size the have some that handel over 70 volts and upwards the problem is what you gonna conrol it with and what prop u going to spin? x427 I think Howard can run whatever his heart desires? whats it to any of us? At this point id just watch and learn as he has one of the fastest hotr cats weve seen. He deserves some guru status for that alone . So lets just watch and learn something. Im down with whatever he does on this boat. I he can get a 572cu in chevy in there I just want to see it run period. Watching Howard and Keith with these fighter cats is going to be big fun

Those American Motors are the shiznit

[TotalPackage]

Im just surprized the 4082's arent going like hot cakes at this point but howard let me say this if youre pushing equipment farther thatn its recomended and getting close to records u need to get a sponsorship i mean you sellin motors for leopard indirectly just food for thought

[m4a1usr]

I am going to save you $260! I am not opposed to crazy setups, but running 11S goes against the laws of electromechanics on that motor. On a 1527/1.5D the most you need to run is 5S-6S.

1527/1.5D: [1500kv] x [11S] x [3.7V/S] = 61,050 rpm. The motor is rated for 60,000 rpm, probably with no load. I'd keep the rpm within the 30,000 - 35,000 range for a hot setup. Besides, 1527 is wasted power, weight, and money on a 32in cat. The most I'd use is 1521.

Hopefully he is going to use the 8mm rotor version. The 5mm shaft rotor will likely disintegrate at high RPM's. Been the story for those who have already tried.

John

[Howard Lee]

Hopefully he is going to use the 8mm rotor version. The 5mm shaft rotor will likely disintegrate at high RPM's. Been the story for those who have already tried.

John

5mm shaft will not disintegrate at high rpm's. The problem is when you are pushing a heavy boat with big hp with a 5mm shaft. I think this is funny about high rpm,s. I have a leo 1500kv that i turn 50,000 out of it and have many test runs but never have a problem with it, but a neu will come apart at 60,000. I'm missing something here, maybe i need to go back to my leo. This is a test of rpm,s and to see just how fast a 32 river cat can go. I have already hit a 100mph on gps with a leo at 50,000 but what will i hit with 60,000 rpm's??? lol

[Howard Lee]

I started reinforcing the 32. To start with the strut attachment area needs to be sanded and then check if is level. Then add some cloth for strengthening the seam. For this motor i am going to double the cloth to strengthen the floor and then use PT40 to seal the hull.

[Howard Lee]

2 more pics.