I got my hands on one of these blue cd style, one ounce, 12 pole outrunners. Specs say 9 Amp max. I haven't flown it yet but trying several different props and batteries, it seems to pull better than my single GB style motors, and fills a gap between the cd singles and an Esskay400xt.

I was wondering what prop/battery combo's others have tried using this motor, and how they like them.

Hey Paul...

I, too would like to know more about this particular motor. I almost put one on my order last week, and forgot to. Not that it matters, as I'm beginning to wonder if they will ever ship me anything (2 orders in with them now, 1 a month old, and 1 almost a week old, and nothing has shipped yet)

I'm hoping this is not an omen. Granted, the first order has a backordered item, which I have seen at least 3 different expected dates on, but the new order has not shipped for almost a week.

I'll be glad when I see an order go through smoothly, as many have reported. Maybe it's just me?

Gene my order which I placed on last Friday was shipped yesterday. I'm just glad it shipped. I have seen that GPW and Msmith have been using those motors on the USAF UFO. I'll chance another order with them today and when I get the motor I'll run a few quick tests on it.

Gene my motor finally came in Thursday. Tried the motor with 3s 1050 Vampower Lipo and GWS 8x4HD prop and got 8980 rpms at 6.21 amps. Not to shabby. Should work great in the Smart Dart XS. I'll run some more test later with 2s 9x5, 9x4.7 props. Wish I knew what gauge wire it uses so I could see how hard I can push it. Going to try the 9x5 on 3s and see where the amps run. I think if you can keep the amps under 8.5 you should be ok, just a guess and this is all done static not on a plane yet.

Edit: No go and 3s with 9x5 8.65 amps and 9x4.7 pushing past 10 amps quick shut it down. Both push it over 8.5 amps and rpms drop off quick. May be fine for 2s and a light plane. Ran another lipo Electric Power 3s 12c 860 and got 8780 rpms for 6.02 amps.

For me the sweet spot was with a GWS 8040. On a 2S 850 mah lipo, it turned 6700 rpm at 3.4 amps. I was told by another on this forum that this is an efficiency of 80%. The same prop on 3S turns 8700 rpm at 6 amps and is about 70% efficient.

I think you can run a 9050 on 2S ok, but it gets hot on 3S. Fine little motor for $12.

Why do you call it a CD style motor? I thought CD motors were 9 pole. This is 12 pole with 14 magnets. edit: 16 magnets

I have placed 11 orders with UH and receive them anywhere from 7 days to lately 15. I have three in the mail now and the oldest is at 19 days now. I guess the Christmas rush has tied up the mail. It was almost a week after order before the 19 day one was shipped. You can log on to the site and check the status of your order. The last couple went through within a couple days so they will probably all arrive next week. They also have spare shafts, a prop saver and a nice motor mount for them.

I took a Formosa wing and tail and made a fuselage for it and have made a twin that will run APC 7x5 props.

Len

I'm using one on my Stuart Little Bipe using an APC 9x4.7SF on a 2s Apogee Lipo pulling 6.5A. Very nice motor. Wish I had bought more than 2 at the time. I very much dislike how my Tbird 9A controller works with it - very noisy and occasionally 'backfires' so to speak when reving it up. Cheap Chinese ESC works great with it.

I'm using the Hobbywing Sword 18 amp esc with it and it fires up fine and really good throttle response, all the way down to once click before throttle closed.

PD, mine coughs a bit on a 9" prop too, on a 2Cell too. Funny that on a CC10 it'll run fine with the 9"ers-- just the TB9 acts up some.
On a 3Cell and TB9, 8060 or 8040 thee's no problems.


Added: I got a few from this vendor:http://www.ncweb.com/biz/dan/Parts.htm

$19 with a nice bulkhead mount, fast service

I am using a couple of cc10 ESC that I had on hand for two of them, two others will use the 9 gram $12 Chinese ESC that seems to work fine for them. Throttle probably isn't quite as linear. I have a 12 amp Hobbywing on the way to try that is just a couple of dollars more.

I forgot to mention, postage is $3 if light enough; $5 for 200 grams which usually covers most things. That is for your basic air, it is a couple of bucks more to have it registered. I generally do that if buying more than $50 worth of stuff.

https://www.unitedhobbies.com/UNITED...idProduct=2069

Len

Originally Posted by LenBFP

two others will use the 9 gram $12 Chinese ESC that seems to work fine for them. Throttle probably isn't quite as linear.

LenBFP, the Chinese 9A ESC was my original choice for my Bipe but I had a ton of problems with it. Even last night I worked with it some more and still could not get it to work. Most of the time I can rev up the motor one time, but once I go to minimum throttle, it won't throttle up anymore. Also having problems setting the prop brake on or off. Even tried extending my end points to 125% and no go.

My original UH 24gm motors came with the long GWS threaded style motor shaft. I'm glad they switched to the stubby shafts now.

HXM27301300 Dyno Test Results

Probedude,

I have purchased four of the 9 gram 10 amp HXT or TP ESC, but have actually only wired up one. Using the as shipped settings, it seems to work ok, but now I am eager to try out the others. I know quality control can be a problem with these cheapos. The second set look a bit different than the first. Wire colors, the one that I have tried has a jumper to change cell count the other doesn't. The board layout looks the same though.

Len

I ordered this motor and one of the 10 amp HXT Esc's from United Hobbies today. I'm planning on using this in a Pico Tiger Moth. Not sure on the props yet, as I'm at 7000 feet. I'm going to bench test a few and see what I like. I was looking for a good cheap mostly duration setup with strong take-offs and climb outs. What is the major difference between GWS HD and SF props? I have lot's of SF ones lying around....

Slowfly props have wider blades, so they produce more thrust but consume more power. They are also quite flimsy, and so are not suited to high power applications (no problem for this motor).

Originally Posted by Bruce Abbott

HXM27301300 Dyno Test Results

The Littlescreamer de novo in your data set - is that the current version (?15T/25ga) or the original (slightly cooler 17T/26ga) version?