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Old 09-23-2004, 12:32 AM   #1
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T6/3D tests. Prop/AMP/ Ect

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Hi guys.

I know theres not much published data out there for the HET 3D motors.

So I will try doing some test for you.

I have a whatt meter and Tach. But for RPM data I'll need to get outside n the sunshine. I didn't realise incandecent lamp "cycled" too.

Anyway heres some of the numbers so far. If anyone else can do the same with there favorite brand of motor, by all means jump in and post your numbers.

T6/3d / 9 x 3.8 APC slow/ 12.3 amps WOT @ 11.3v or 115 whatt

1/2 throttle 1.8 to 2 amp 23w

On 10 x 7 APC slow.

1/2 throttle 3.8 Amp/44w rolled the throttle up and just went over 10 amps up in the 90% throttle range.

Obviously the 10 x 7 is a bad choice but I need to order some low pitch props. And that can't happen till next week while my wife is on holiday.

Ok tonights numbers.

GWS 9x7 pressed on to the shaft. this is pretty light weight compared to the APCs and adapter.

1/2 throttle 2.4 amps/28W/11.4V
WOT 15A/135W
just a brief run, this sucked out the battery a little and tripped the thermal. :-0 this prop is a little much. I tried again but I think the battery is getting low. 9A/95W/9.8V I may try this agian out doors to get 3/4 throttle readings with RPM. It may be a doable prop for sport flying. Lightweight lots of pitch so maybe good speed. For say a GWS warbird or Kieth Rider racer.

APC E 8x4

This prop was noticably heavier. And took a while to spin down after throttling back. Also was not very balanced out of the box.

1/2 throttle 1.7A/25W/11.5 v
90% T / 5.5A/57W/10v after a few seconds
100%T /9.3A/86W/9v after a few seconds

Without spending some time on balancing I think this prop would shake things loose. I'll have to wip up a thrust measuring device or TMD ;-]

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Old 09-25-2004, 09:46 PM   #2
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Well I did some RPM tests. On the APC Slow 9x3.8 and 10 x 7 and then charged up the battery to do anouther round just to see the difference but it went dark. So shuffled down to the LHS and bought a couple 8 x 3.8 and some more battery packs. So for now the numbers I have. With some luck more tomorrow.

9x3.8 WOT 7400 RPM average.

3/4 5800

1/2 4700

10 x 7


3/4 3900

1/2 3300

More to come.

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Old 09-26-2004, 07:25 PM   #3
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Well did a few more tests.

Some with a fresh off the charger batt. the others on a ? charged pack. So some of the throttle settings vary quite a bit. Just look to the voltage to judge.

APC Slow 8x 3.8

T / A / W / V / RPM

50% / 1.5/ 18/ 11.1/ 4900

50%/ 1.8/23/12/5310

100%/ 9/79/8.4/7750


APC Slow 9 x 3.8
T / A / W / V / RPM
50%/ 2.4/30/12/5070
75%/6 /73/11.4/6660

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Old 12-09-2004, 08:34 AM   #4
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Typhoon Micro 5/3D

I just picked up a couple of micro 5's for an own design project of mine. I went with the micro 5 over the micro 6 for weight considerations and I dont think I will be disappointed! I was looking for something between the Axi 2204/54 and the 2208/34 which this is....I have tested both those motors on 2S and the 2204 is around 35W and the 2208 is around 60W.

Here are some numbers from the micro 5 that I took off the Medusa....it was inside so I dont have tach numbers.

GWS 10x4.7SF, Apogee 2S 830 pack

7.1 amp, 7.2 volts, 50 watts.....tach wont read indoors but its got plenty of thrust for my homemade indoor machine (7.5 ish oz)

I got the motocalc numbers setup so it matches measured values very close as well...

1200 rpm/v, 0.5 A no load current, 0.28 ohm resistance.

Those give a pretty good correlation to the numbers I get on the Medusa.

On a 3S packs this motor would have tons of jam!

I think this is a perfect little motor for low 7 and sub 7 oz indoor models on 2S 3S would be great outdoors.
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Old 12-09-2004, 03:24 PM   #5
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use a flashlight with the tach.
and hide from the ac lights a bit works ok here

MAAC 5057 L
Jean. C. Blouin
CFI Club Aeromodeliste de l`Estrie
Skype jean.blouin
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Old 03-28-2005, 06:04 PM   #6
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I have been flying my laser with the t63d combo that I bought last fall. I have noticed that with a apc sf 9.38 it really sucks the power back. Originally I purchased 2 electrifly 3cell 350 it works out to be 7amp cont. I was told this was the size of battery to be a lighter setup. I have not been to impressed with the set up. The battery seems work well in short bursts. It will hover for a while, but the battery drains really fast. My flight times are 3-4 min. This is not what I was expecting. I Know that cold weather can play a part in battery life. Should I wait till it gets warmer to get more definite results. Is there anything to make the motor run with less power. Different props. I still want to do 3d. I have tried apc sf 8.38 but really hadn't noticed any time improvement. Also nearing the end of the flight the motor seems to be stuggling for power, it pulses.

Also over the past week I have tried a friends apogee 3 cell 830. Over all the battery perform very well. I can get at least 10-15 min flights. I know that it can deliver more amps that the little 350 packs. With the 830 it is definitely a outdoor flying machine.
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Old 03-28-2005, 06:27 PM   #7
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3S1P 830 mah is what I use. Outdoors.

You could experiment with 2S and a larger prop with more bite.

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Old 03-28-2005, 06:41 PM   #8
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I am useing a T6/3d on a 15oz foamy. It works really good i am running a 9x5 GWS hyper drive prop(all i had at this time) it draws at WOT 12.3 amps. not sure on the rpms yet i will check it out tommorow just thought i would add my 2 cents

The other motor i have is one i made it is a 9 pole double startor with 14 turns of 24gauge wire. I was running a 10x4.7 at 5800rpm drawing 10.2 amps. Both motors were on 3 cell 1350s
What do you mean , I can land upside down
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Old 04-23-2005, 11:40 PM   #9
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This is a great little motor, I stuck it on my GWS Flying pizza instead of the the T6/20 and installed a "prop saver" mounted GWS 8x4 Hyper Drive, the little thing spun it over 12000 RPM on 1200 mah 3 cell lipo's that's lot's of power for a draw of just over 10 amps. Less weight than the T6/20 and just about as much power.

Now I'm curious as to what can773 did with his two T5/3d's

They are great little motors too I'm sure.
Salutations from the Pacific North WET!

S.P.A.D.s, Fibreglas & Balsa EDF's, Foamies, Brushless powered and nitro balsa planes, they're all in my hanger, just don't explain what it all means to the mrs, eh?
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Old 04-24-2005, 12:10 AM   #10
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But wait theres more!

We now have the T3/3d... !!!

Will the fun never stop !!!!

I have none yet but putting an order in shortly. I cn't keep up with all the motors HET is cranking out lately.
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