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T-REX 600 › Am I FOS or is Align
12-23-2008 06:32 PM  8 years agoPost 1
missle

rrApprentice

West Chester, Oh

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Please take a moment and review some of these motor testings and tell me if the numbers seem realistic. Specifically, I'm referring to the new 650L motor with 600mm blades, on 6S with +/- 11 deg pitch of which this test claims a max of only 69amps.
Here's the site http://www.align.com.tw/html/en/c_rindexe.htm then scroll over to the pull downs on the left under "Motor Test" and click on "650L".

BTW, I already know I'm FOS but want to know if there's something wrong with my setup that I seem to pulling a whole lot more amps with the same motor.

WATCH OUT!!!!!!!!

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12-23-2008 07:49 PM  8 years agoPost 2
robertjp450

rrApprentice

West Chester, Ohio​USA

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Thats because you wont leave things alone LOL.

Were going to try to fly this Friday and Saturday it suppose to be nice out. Can you bring your simulator so that CB will be able to fly something, dont want him to feel left out while we fly

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12-23-2008 08:02 PM  8 years agoPost 3
TaleGunner

rrElite Veteran

Deer Park WA

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I too have been getting close to 100amps peak with an elogger but its just for split second then its back to around 70amps

on the XL I was getting spikes as high as 105amps

CRASH! GLUE! REPEAT!
Spectra-G, Ion X-2

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12-23-2008 08:26 PM  8 years agoPost 4
OICU812

rrMaster

Edson, Alberta,​Canada

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AMP ratings on 99% of the motors are always way below what people actually pull, those numbers unfourtenetly are always a start point that's it. Nothing to be concerned about, if your motor and pack and esc temps are within reason this is most important.

...Once upon a time there were Nitros, flybars and frequency pins...

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12-23-2008 08:39 PM  8 years agoPost 5
Ben-T-Spindle

rrProfessor

Central Illinois

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Those quick spikes with some data loggers are not really valid data. If the current is steady for a second than it is probably valid. Sometimes you just get high noise spikes.

... BTS

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12-23-2008 08:51 PM  8 years agoPost 6
TaleGunner

rrElite Veteran

Deer Park WA

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I asked the guys at ELogger and they said no! if there is a spike its valid ?? According to them

CRASH! GLUE! REPEAT!
Spectra-G, Ion X-2

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12-23-2008 09:05 PM  8 years agoPost 7
tadawson

rrElite Veteran

Lewisville, TX

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The ratings will be for steady state operation when up to speed in stable flight, and will represent averages. Starting current on pretty much *any* motor - AC, DC, brushless, washing machine, whatever is *always* going to be significantly higher than running current, and I suspect that this is what you are seeing . . . That, or the esc has gone underspeed, and is hitting it with a very large surge to catch back up . . . in any case, if the average is anywhere near the published figure, I would say that things are good.

Oh, and upon looking back at the test data on your link, I don't see anywhere that they imply that 69 is a maximum - the column header clearly states "Average Amps", as per my discussion above . . . .

- Tim

Friends don't let friends become electrotarded . . . .

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12-24-2008 12:41 AM  8 years agoPost 8
missle

rrApprentice

West Chester, Oh

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Tad, while I do thank you for your info and response, I must question as to what your talking about? No where in the column does it say "Average Amps" (as how can you really have an average amp at 11 deg pos/neg pitch?). They state that the reading is "Approx" but more important it shows the HS to be in the 2100 range WHILE at +/- 11 deg. For those that have this motor, have ANY of you been able to obtain numbers remotely close to their reported readings? Like others have mentioned, mines has been > 100 amps and I've only got my HS set at 2050. I do admit that I've got a couple of differences than their setup; I'm using a 15 tooth with 188 helical gear, I'm using real bats (Outrage 6S 5000mah), I'm using CC BEC. I am however using their gear elsewhere; their 610 servos (these are awesome), their 600mm CF blades, their 100a ESC.

Maybe I should restate my question. How is it they are reporting this motor as being able to handle 11 deg pitch at only 66amp and while maintaining a HS > 2100? Is anyone else able to obtain this while using 6S bats? Maybe this is why everyones having heating issues with these motors

WATCH OUT!!!!!!!!

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12-24-2008 12:45 AM  8 years agoPost 9
missle

rrApprentice

West Chester, Oh

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John, I work Friday but I can definately get out Sat and Sun. Instead of bringing the sim, maybe I'll bring both of the 500's so maybe he can fly one of them (that's after he does a test to prove he's still got it and after he signs a promisary note stating that he WON'T do ANY tic-tocs below a 20ft ceiling)

WATCH OUT!!!!!!!!

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12-24-2008 12:57 AM  8 years agoPost 10
6983868850

rrNovice

Athens Greece

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i believe that neither the amp draw and nor the hs stated at the align chart are realistic.
i do not know about the amp draw in my system (600esp stock 15t)
but hs at 0 pitch is 2340 and if i give more than +-11 pitch then the system bogs down to 2k.
packs that i use is always 25-30c
note. my gear mesh is very loose for less dragging.
so this chart better do not be a bible to us all.

kmiglis Get airborne..!!!!! TDRigid

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12-24-2008 01:43 AM  8 years agoPost 11
robertjp450

rrApprentice

West Chester, Ohio​USA

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What both 500s

Never loose airspeed, altitude and ideas all at the same time.

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12-24-2008 02:51 AM  8 years agoPost 12
missle

rrApprentice

West Chester, Oh

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Yea TWO 500's. Did I forget to mention I got another one I only did it cause when I gave my X-mas list to the wife, she just laughed and said dream on. So I went out and got me another one. BTW, did I mention that the 700 was on my X-mas list

WATCH OUT!!!!!!!!

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12-24-2008 04:13 AM  8 years agoPost 13
tadawson

rrElite Veteran

Lewisville, TX

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I guess I saw the "Approx" and interpreted it as "Average". The main point was that nowhere does is say "Peak" or "Max" as you stated either . . . . and it does imply steady state, and not spooling up, or trying to get there and failing . . . .

- Tim

Friends don't let friends become electrotarded . . . .

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12-24-2008 03:22 PM  8 years agoPost 14
missle

rrApprentice

West Chester, Oh

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Okay Tim. I see how the two words could easily play tricks on ones mind. Also, when I said max in the beginning, I didn't mean it as the "max" output of the motor, but rather the "max" amps required at 11 deg pitch with a HS > 2100. I think the point being that this advertisement is fabricated and how much is yet to be determined.

WATCH OUT!!!!!!!!

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12-24-2008 06:19 PM  8 years agoPost 15
TaleGunner

rrElite Veteran

Deer Park WA

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Missle
I looked for my eloger data files on the 600xl and 650l but they are in my laptop that is in for repair but here is an eloger data chart for a trex 600 with an 8s mega Acn 22/45/2 f rated at max cont 40amps.

as you can see the average amps are 39.49 with spikes during hard moves (but now were near +11 -11 collective maybe 9 or 10) is 68.52 amps. I think almost all motor mfg are rating there performance on overall averages. If you talk to ken at mega he says dont even run this motor with less than a 85 amp esc and he recommends a 110 because Cody his demo pilot hits 100+ amp with this motor alot.

as you can see by the chart this motor has great power and pop chart would look better if I had used 20+c batts

anyhow this is for referance as this is a motor rated a 40-45amps cont but it takes a lot more to get it to fly like we want.
I will get you the 600xl and 650l data as soon as I get it back.

CRASH! GLUE! REPEAT!
Spectra-G, Ion X-2

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