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Home✈️Aircraft🚁Helicoptere-Electric General Discussion › TEST RESULTS ARE IN
01-16-2006 12:35 AM  13 years ago
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helidog

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usa

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TEST RESULTS ARE IN
Testing of an Align RCE-BL35G speed control combined with RCM-BL430L motor (ALL STOCK WITH THE SE) vs. Phoenix-35 speed control combined with a Justgofly.com 400-DH motor.

This was a somewhat controlled test done with two T-rex helicopters one was an SE and the other was upgraded before the SE was available. In testing I used a Fluke meter attached to the helicopters via lightweight umbilical cord to monitor voltage drop as it occurred during testing. I also used a Raytek temp gun to get my temperature readings immediately after battery voltage dropped to 9 volts. The most sophisticated piece of test equipment that I used was to stabilize the helicopters during testing was a set of floats that I use for my 50 helis ””Laugh”” but it worked great for the test.

Here are the test results that I got from testing I hope this will help anyone that may be wondering.
To make the testing as close as I could I used the same 2100mah Thunder power prolite to power both test subjects over about a 3 hr test period. During testing both helicopters had the same + and – pitch and with this pitch I pumped the collective to its extremes throughout the testing time.

1st Helicopter consisted of a stock T-Rex SE. Align RCE-BL35G speed control / RCM-BL430L motor / Spectrum DX-6 with 4 spectrum S-75 servos. The only modification that I had done is to the speed control.
I cut off the old heat shrink and made use of the heat sink that the speed control came with by mounting it directly to the components of the speed control to lower operating temps.

Test time from start to finish (finish being battery cutoff) 8 minutes.
Temp on equipment after 8 min.
2100 lipoly 145 degrees
speed control 126 degrees
motor 150 degrees

2nd Helicopter consisted of Phoenix-35 speed control combined with a Justgofly.com 400-DH motor /
3 HS-55’s and one HDS-877 on the tail. JR R770S 6 channel receiver.

Test time from start to finish (finish being battery cutoff) 10 minutes
Temp on equipment after 10 min.
2100 lipoly 134 degrees
speed control 116 degrees
motor 86 degrees

I won’t get into the pros & cons of the two because that is like arguing over Chev or Ford
I did see more power in the 400-DH motor over the RCM-BL430L motor with less heat

I did learn this in testing, I was at one time very concerned that the Align speed control with only three battery protection settings of 70%-65%-60% was going to create a problem and pull the lipos below the 9 volt cutoff. I found that if you use the 70% low discharge setting it will cutoff at 9.1 to 9.2 volts. If you use anything under the 70% cutoff this will be below the 9 volts discharge on lipos and you will probably be harming your lipos.

The CC-35 cuts of at 9 volts and is very soft on the cutoff unlike the Align being abrupt in its cutoff.
I did like the soft start on the Align very slow on spool up and realistic the soft start on the CC-35 will just about rip the gears out so it’s not as soft as it could be. If anyone has any questions on my testing you can add to this and I will answer with what I can.
Its nice to be the Big Dog.
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01-16-2006 04:27 AM  13 years ago
rbort

rrProfessor

Franklin, MA - USA

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Awesome!
I want the T-REX with the DH motor and Phoenix speed controller. Do I just PM my address to you to get it?

-=>Raja.
MA 1005 Hanson 280, 4264 flts
Spectra 27 3DMax, 3392 flts
Whiplash V1-2 Hanson 300, 1808 flts
Whiplash V2 Hanson 300, 705 flts
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01-16-2006 07:35 AM  13 years ago
JKos

rrProfessor

Redondo Beach, CA

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Any chance of testing the Align ESC with the 400-DH motor?

- John
RR rules!
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01-16-2006 02:34 PM  13 years ago
helidog

rrApprentice

usa

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JKos

I have to call Vinnie @ justgofly.com and see if the Align ESC
will handle it, if so I will be testing it also the Align motor crapped out after 5 flights so at this point I'm NOT to impressed with the Align electronics. I am building and testing this equipment for a customer and before I could make the first flight I had to replace the Align ESC right out of the box. The second ESC I got I had to re-solder the wires from the Bec to the receiver plug because of poor solder joints and no power to the receiver Now the motor sh-it the bed.
Its nice to be the Big Dog.
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01-16-2006 09:00 PM  13 years ago
Rob_T

rrElite Veteran

..

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This is truly some excellent info, thanks for going to the effort of documenting it for us all.

Just to complete the picture, what headspeeds and what pinions in each case?
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01-17-2006 02:46 AM  13 years ago
helidog

rrApprentice

usa

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Rob_T

Sorry I have no head speed info I was testing power and duration. The stock Align had a 13 tooth and the 400DH had a 9-tooth pinion.

More info from Vinnie @ justgofly.com

On Helis - the 450TH is my most popular heli motor and most enjoyed in the T-Rex with a 13T pinion. The 400DF is most enjoyed in the 3D Pro heli. The 400DF is actually the same motor as the 400DH with a bell replacement. So converting between the two is inexpensive. I don't think you'll get more run time with the 450TH. This is the cost for added power. It does not bog and will turn 2600 RPM on a 13T. The standard Align pinions are best used.

The 400DH is my second most popular motor, followed by the 400DF. Check them out on the web site and let me know if you have more questions.

Vinnie
JustGoFly.com

Remember I have tested the 400DH only the other have more power so if you are looking for power here it is.
Its nice to be the Big Dog.
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01-21-2006 07:48 PM  13 years ago
spork

rrVeteran

Mountain View, CA

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I haven't tried the other JGF motors, but I did recently buy the 400DH for my T-Rex. I also got the MMM 35A ESC from JGF at the same time. I am extremely happy with the service from JGF. Vinnie is very helpful and responsive. In addition to the significant increase in power over my Align 2550KV motor, I shaved 39 grams (Align motor and heat sink vs. the 400DH with no heat sink). And the 400DH runs much cooler.

I shaved another 8 grams using the MMM ESC with solder connections vs. the Align ESC with connectors.

Just thought I'd add a single data point.

RC
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01-21-2006 09:11 PM  13 years ago
helidog

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usa

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thanks for the info spork.Its nice to be the Big Dog.
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