Warp 4 Brushless Motors

[ALL e RC]

Introducing the NEW - WARP 4 Brushless Motors

Please click the following link for more information.

http://www.allerc.com/index.php?cPath=7_62

We have 2, 3, 4, 5, & 6 Turns in stock. These new motors have performed extremely well in all of our tests. In fact we found that we were able to get over 110% of the performance on the Warp 4 three turn over the MEGA 16/15/3 Motor with very little heat. They are designed with 3 mm shafts and include 3.5 mm Gold connectors installed and the matching ends and shrink tubing for the speed control. Pinions will be here soon for those that want to run gearboxes and for those that want to run direct drive, we have 3 mm collet adapters in stock.

http://www.allerc.com/images/Pictures/WARP4X3.jpg

http://www.allerc.com/images/WARP4BOX.jpg

[opualuan]

how is it you get more performance when they are rated for ~15% less current? please enlighten me... 4 turn on 3s lipo, mega is 25A for instance... do you have any numbers on an apc 6x4 to compare to my setup?

[ALL e RC]

how is it you get more performance when they are rated for ~15% less current? please enlighten me... 4 turn on 3s lipo, mega is 25A for instance... do you have any numbers on an apc 6x4 to compare to my setup?

I don't have any hard numbers recorded on the 6 x 4 apc on the four turn but we have been flying the three turn a lot on a flying wing and they are doing really well. The motors are not getting hot.


When we were able to get over 110% on the same turn mega was a 3 turn with an apc 4.7 x 4.2 where we were able to produce 250 watts at 25,900 rpm's where the mega produced only 23200 rpm's with the same setup. I will clarify that on the previous post.

[opualuan]

I'd love to see hard numbers on the 4 turn... any benchmarks available?

[ALL e RC]

I'd love to see hard numbers on the 4 turn... any benchmarks available?

I don't have any right now because I have been too busy due to the holidays coming up. Do you have testing equipment to come up with some?

[opualuan]

astro super whattmeter, castle esc, thunderpower 3s2p 4200ma pack, tachometer, IR thermometer, and motocalc. and a ton of experience getting the most out of the mega 16/15/4.

[PerfectStranger]

What is the advantage of one of these over the comparable Mega (besides $). I'm more interested in quality and performance than price.

Also, what is the distance of mounting screw holes on front of motor? I surely want to make sure that my $80 gearbox can bolt on!

matt

[KrisS]

The 3mm shaft of these motors make it impossible to mount any spinner, there is no spinner for 3mm shafts, only collet adapters :-(

[ALL e RC]

What is the advantage of one of these over the comparable Mega (besides $). I'm more interested in quality and performance than price.

Also, what is the distance of mounting screw holes on front of motor? I surely want to make sure that my $80 gearbox can bolt on!

matt

Matt:

These motors are very efficient. I am working on some real world numbers to post so that you can see the advantages but I can tell you that I have tried a Warp 4 three turn on a flying wing I have and the performance is nothing short of incredible. Unlimited vertical and great run times.

There are two sets of mounting holes on the front. One it the same as a speed 400 and the other is the same as a speed 480. I am out of town right now and can't look it up but I think it was 16 mm and 19 mm. The screw holes are 2.6 and 3.0 respectively (same as speed 400 and 480).

Sincerely,

David Sobel
www.allerc.com (http://www.allerc.com)

[NipponDave]

how is it you get more performance when they are rated for ~15% less current? please enlighten me... 4 turn on 3s lipo, mega is 25A for instance... do you have any numbers on an apc 6x4 to compare to my setup?

Mega rates the 16-15-4 at 20A Max Short Time. The RCer 15-4 is rated for 22A continuous, 30A short-time. That's 50% higher than Mega's offcial rating... Both Mega and RCer are giving max ratings which keep warranty returns in mind, given that users typically push way past the limits. Anyway, the lower Kv you see in the RCer motors at the same internal resistance means the RCer are more efficient - that's just physics. The 3-Turn at 3-cell and 26A continuous (fast model!) comes down from a flight so cool that you have to stick your tongue on the motor to feel the heat :eek: The RCer 4T and 5T are the best direct drive replacement motors I've ever tried in medium-speed S400-Class sport models.

Cheers,

David

[NipponDave]

The 3mm shaft of these motors make it impossible to mount any spinner, there is no spinner for 3mm shafts, only collet adapters :-(

Every spinner major maker I know (RFM, AeroNaut, MP Jet, etc...) carries 3mm spinner adapters. I think All E RC will also have 3mm adapters for Kyosho-WemoTec EDF soon, too, but you'd have to ask them about that...

David

[opualuan]

david, I'd love to be convinced, I'm always looking to tweak my setups...

however, I've never seen the mega 4 turn rated anything EXCEPT 25A continuous, and that's what their site still says:

http://www.megamotorusa.com/Brushless/ACn16-15-4.htm?id=3

I don't believe I've ever seen a burst rating from mega.

After hundreds of full-throttle 12-15-minute flights, using lithiums, I've yet to feel my mega to be even warm to the touch.

I don't think any conclusions can be drawn about efficiency until some real world numbers are posted. how is a motor with a higher no-load current at a slower speed necessarily more efficient? we need data here.

I see from the rpm/v the mega 4 turn is really closer to the warp 3 turn. my credit card is ready to sign, get us some benchmarks and hopefully some motocalc constants!

[NipponDave]

however, I've never seen the mega 4 turn rated anything EXCEPT 25A continuous, and that's what their site still says:

http://www.megamotorusa.com/Brushless/ACn16-15-4.htm?id=3
I don't believe I've ever seen a burst rating from mega.

I don't think any conclusions can be drawn about efficiency until some real world numbers are posted. how is a motor with a higher no-load current at a slower speed necessarily more efficient? we need data here.


I've never paid attention to what other vendors post, but I assumed you were referring to the Manufacturers ratings, which are given by Mega CZ as peak. Mega USA has adjusted their ratings based on real-world observations, and RCer has done essentially the same. However, since Mega USA doesn't have to pay for burned-up motors (they're not the maker), they can afford to play it closer to the "real" limits...

Anyhoo, there's no doubt that the RCer is more efficient, and you'll see some data on that very soon. As for no-load amps, that's higher because all you are doing at no-load is turning against magnet resistance, and RCer has stronger magnets. The extreme opposite is a De-magged motor, which has higher-than-normal Kv and lower-than-normal no-load current. Problem is, when you put a load on it it sags to its knees, and makes heat but not power. The RCer does the opposite - remaining efficient under high loading due to the strong magnets when the Mega is already fading...

Cheers,

D

T Kv NoLoad R MaxRPM Weight
2 3880 4.10A 0.012 40000 74.5
3 2580 2.00A 0.026 40000 74.5
4 1810 1.30A 0.045 40000 74.5
5 1430 0.95A 0.068 40000 74.5
6 1190 0.80A 0.110 40000 74.5

[KrisS]

...and RCer has stronger magnets...

Every spinner major maker I know (RFM, AeroNaut, MP Jet, etc...) carries 3mm spinner adapters


David-san,

I am pretty impressed with the performance of the Mega motors, I run 500W through the 16/15/2 in my pylon racer, hard to believe it can get even better with a WARP motor. I assume they use both neodym magnets, there are different grades, N45 etc., do you have any info which motors uses what magnets?

There is a 30mm spinner for 3mm shafts from MP Jet indeed, however they can only be mounted if the hole in the adapter is deepened by drilling it (most probably the spinner will be off center then), or if the shaft of the motor is cut shorter, or a spacer has to be used so that the spinner is flush to the firewall :mad: The only good 30mm spinner for fixed props is the Graupner spinner, unfortunately it is only available for 2.3mm or 3.2mm. 3.2mm is a standard diameter for motor shafts (Mega, Hacker, Lehner etc.), 3mm is rather exotic.

Yoroshiku!

-Kris-