New/NEU 3660 motor. Opinions?

[T.S.Davis]

I fear I'm leading you astray here. Takes a special type of pliers to do it well.

Think of the blade as a spoon. If you start messing with the shape of the spoon it throws more water per pass. That's an over simplification but you probably get what I'm saying.

There are guys that can and will check the pitch as they modify to verify exactly what they've changed. That's the right way to do it.

Some of us will eyeball it. Which is the wrong way to do it. haha

[CraigP]

Yeah, that's why I haven't eyeballed one, but I've been tempted! I'm a tweaker, for the good and bad of it. My best overall prop is the M445, which many like. Good thing about that prop is there are all sorts in increments around that size. So I just stick to what I know, S&B and de-tounging... I've got an S220 Prather that's close to the M445. Got a 1742-3 to try. Boat's in final paint now... That Vortex gets at it! Would love to have you drive it in a race... Above 55 my concentration gets behind the boat. That thing will hit 60 pretty easily. Oh, thanks for the course detail on another post. I've been wanting to set some bouys, maybe that's part of my problem, nothing relative to drive on.

[HTVboats]

What kind of hull are you running to hit 60 easy with an M445? That is a very good prop for a 36X61 on many hulls. On my tunnels, cats and mono's it runs mid to high 40's.
Mic

[CraigP]

It's a DF Vortex 34 with heavily modified sponsons. It's on 8s, running a 4082 1250kv motor and 150A SW ESC. Initial run was 53mph with a Grim 40X57 3 blade. The M445 brought it over 64. Prather S220 top was close, 62mph.

[T.S.Davis]

What kind of hull are you running to hit 60 easy with an M445? That is a very good prop for a 36X61 on many hulls. On my tunnels, cats and mono's it runs mid to high 40's.
Mic

I don't know anyone hitting 60 easy on the spec motor setup. It could probably be done but not easy and not for 6 laps and a mill.

[CraigP]

No, not a spec setup... it's 8s. I'm working on a 4s2p setup, but the speed will drop. Need a 2400kv motor and at least a 250a esc. For me, it feels like I'm going in the wrong direction. I only need around 100a on 8s to hit that speed, going over 200 doesn't make sense. I'm not going to run competition with it. It's an R&D boat for LiPo battery research. I design battery powered applications for O&G projects. I currently use lead acid AGM batteries and want to convert to LiPo. I have a device that helps to keep the carbon film in the battery consistent. I use the boat to run the batteries down, then apply my device during the charging phase. Many failures in the battery are due to carbon migration on the conducting film, causing localized hot spots. From there, you know the rest of the story. But I love hydros and I want it running good while I'm testing. If the device works, then I'll see first an improvement in battery resistance then it will hold that value.

The boat is getting final paint. Pain in the a--! I just replaced the crappy ul-1 turn fin. Had a side brace on it, but it was still bending. Boat would understeer like crazy. I'll post pics when done. I got a build post that I'll update. I know you guys are concentrating on competition, so sport boats aren't of a big interest to you. You guys have your hands full, that's for sure. I want 100a draws because the O&G application draws that for 5 minutes.

[CraigP]

Oh, and all of this is a big, fat tax write-off for me!

[HRC]

If anyone is interested “richard” took first place at West Florida Model Boat Club
P-LTD race series with the OSE Raider motor and a Pro Marine Skater hull last Sunday.