6 pole motors?

[raptor347]

Paul,
I'd love to compete at the world level again. It's all a matter of funding and time.

NAVIGA is a different game from what we play here. Not better or worse, just different.

It's hard to get guys to build boats they may never get a chance to race. We had the same problem with F5D, for years it was 5-6 guys in the whole country interested in the game.

I was wondering where they got the 6 pole design. The 36mm and 40mm 4 poles are basically Neu copies, although down a hair on efficiency at very high loads. They are very good motors for the money.

Ray,
Remember, those settings were recommended for an application that mostly runs partial throttle and moderate loads.

[raptor347]

That may well make them the perfect match to my inquiry.

Terry,
My current 117mph+ P hydro record was set with one of the 4 pole 40mm motors. 40+ passes over 110 mph with current spikes in excess of 350 amps with no failures.

I'm pretty impressed considering the price.

Probably the best deal going on a quality budget heat race motor.

Just my .02

[T.S.Davis]

Brian, have you messed with the 6 poles though?

I'm looking for something that will be competitive with the existing motors in the classes without being a POS. But not necessarily light years ahead of them either. There's a fine line between competitive and too good. We have a decent thing going. Subject to opinion of course but the numbers indicate the popularity of the limited idea.

We want quality but we don't want to screw up what's clearly working either.

[properchopper]

Any thought given to these 4 pole guys ? e.g. the 8Y ?

DSC04904.JPGDSC04905.JPGDSC04906.JPG

Company seems FE friendly

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http://www.tppowerusa.com/index.php?route=common/home

[Jeff]

Whoa Terry, you going cordite motors on us?

[T.S.Davis]

No Jeff, trying not to pull the cordite stunt actually.

Tony, I want to be 6 pole like the others.

[raptor347]

Brian, have you messed with the 6 poles though?

I'm looking for something that will be competitive with the existing motors in the classes without being a POS. But not necessarily light years ahead of them either. There's a fine line between competitive and too good. We have a decent thing going. Subject to opinion of course but the numbers indicate the popularity of the limited idea.

We want quality but we don't want to screw up what's clearly working either.

I haven't played with them. If they fall in line with the 4 poles, I'd guess they would result in an unfair advantage. More efficient and probably more current capacity.

[T.S.Davis]

Specs are weird on motors.

The spec on a 2030 says 50 amps continuou. The 600 spec doesn't tell.

That 600 motor says 70 amps max where as the 2030 is 80 amps.

The 600 motor gives us a watt max but the 2030 motor spec doesn't not.

Hard to cross reference.

[Darin Jordan]

Specs are weird on motors.

The spec on a 2030 says 50 amps continuou. The 600 spec doesn't tell.

That 600 motor says 70 amps max where as the 2030 is 80 amps.

The 600 motor gives us a watt max but the 2030 motor spec doesn't not.

Hard to cross reference.

Terry,

If you have an Eagle Tree, or a Castle ICE controller, you can bench-test these motors to determine some of the basic values.

I built a motor test stand, and hook up the data recorders, and, using a standard 4S battery for power (voltage controlled hi-amp power supply would probably be more consistent??), run the motors through unloaded tests.

I then attach various airplane props to them and load them and test and compare...

You can determine efficiency, KV, etc., from these tests.

For example, I can tell you that it would be the VERY rare UL1 motor that actually has more than 1960KV... The original BJ26 motors were rated at 1500KV, but were actually around 1650. The Stiletto 1800KV motor that came on the first batch were actually around 1930KV, but had no torque... The Miss Geico motors are right at 1500KV and have a gobs of torque. The 1800KV AquaCraft motor tests right at 1800KV, and has a pretty low Idle current... Etc., Etc., Etc....

You may have to pop for some samples and test them to actually figure out what works. If you like, I have a lot of data gathered on these motors and can tell you what would be "equivalent" enough to match up.

Basically, the rules state that as long as no dimension/spec exceeds 5% of any already approved motor, the CD of the event can choose to allow the motors to be included. Probably a lot of contraversy there if you show up with one, but in this case, I think you may have an IN with the CD... :)

I would hope that NAMBA and the membership would be open to considering other options as the RTR market makes them available, but that may be a pipe dream...

[Fella1340]

As far as 6 pole motors go I believe that is what TP are or mostly are. I have read a few things about them and remember something like "TP motors being on the cutting edge of 6 pole brushless motor tetechnology" or something like that. My tp 5660 820kv 6wye is definatlya 6 pole motor. I am to new into this to offer a knowledgeable opinion any further though, Jeff

[Fluid]

The 29mm and 40mm TP Power motors are all 4-pole. Only the larger formats like the 56mm have 6-poles.


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[Fella1340]

Thats good to know, thanks