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600/600 PRO Aftermarket Upgrades and Mods Align T-REX 600/600 PRO Aftermarket Upgrades and Mods Support


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Old 03-24-2008, 09:07 PM   #81
Airboss
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i use the 11 th pinion and backdown on the pitch to 10 + -, manage the collective and youll be fine for 5min.
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Old 03-28-2008, 09:16 AM   #82
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Question Head speed issue?

I have noticed that these high performance set-ups are producing head speeds around 2400 RPM . . .
Is this OK.
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Old 03-28-2008, 09:14 PM   #83
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If your going to run a high headspeed setup (which you don't have to however I am) you need to be careful of a few things.

You will punish your batteries so they better be high quality
you will drain your batteries quickly
Everything in your drive train, head, and tail must be in very good balance or the heli will eat itself
Your servos will need more torque to overcome the generated forces
Your dampners will need to be replaced more often for the same reason.

High headspeed will give you more pop and faster cyclic however will make the bird less stable and harder to fly. 2400+ is the high end of the spektrum...as anytime you are at the edge of perfomance expect to have regular maintenance as your bird will be more willing to shake apart.

If you have more questions please use the thread
power system discussions
http://helifreak.com/showthread.php?t=24622
as this thread is for power systems and graphs only.
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Old 04-14-2008, 05:06 PM   #84
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I have a T-rex 600 and the neu motor 1512/1.5 1900 kv running off the hv 85 using 6s and am having trouble finding the right settings using the castle link. Does anyone no what the best speed controller programming for this setup?

Appreciate any input,

Dennis
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Old 04-26-2008, 10:00 PM   #85
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so where can i get one of those bad boy motors.
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Old 04-27-2008, 02:52 AM   #86
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You can get them several places such as www.Espritmodel.com or www.Readyheli.com.
Please note that this thread (please read first post) is not to discuss power systems. If questions, either put them in "power systems discussions" or a regular thread.
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Old 05-05-2008, 08:52 AM   #87
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Default Anybody is using Airthunder packs ?

You can discharge to 0 Volt?
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Old 05-06-2008, 06:30 PM   #88
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Has anyone heard any news about the Scorpion 6S motor for 50 size heli's.
I have the 3S in my 450 and totally love their motors. I heard about a month agao, they were doing test with a prototype. Have not heard anything else about it.
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TREX 600: 611/9256, 9255's, 2 mill CF upgrade, EVO 5000's, DSX9, R921.
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Old 05-09-2008, 03:10 PM   #89
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When i emailed them last they said it would be ready in may -so i would assume its coming shortly! i am interested as well!
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Old 05-10-2008, 12:47 AM   #90
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I'm in utah and summers get very warm. The NEU in my 450 made a huge difference for my motor temp and my batteries. Anyone have an idea about how hot these motors are likely to run?
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Old 05-10-2008, 07:39 AM   #91
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The scorpion in my 450 running headspeed of 2990 is barely warm to the touch after 5.5 min with an ambiant temp of 90 F. I totally love it!
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TREX 450 SE: Scorpion H-2221-8, DS381's, 401/9254, EVO 2500's, AR7000.
Vibe 50: 9715, ATG, Solig G/9256, MP5, YS, R921.
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Old 05-10-2008, 12:19 PM   #92
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Hey Guys!

I just ordered a NEU 1910H/1Y and a CC85HV + 2x FlightPower EVO25 3700 8s brick packs, but I still need to decide which pinion to go with.

I hear the 12 or 13t revco should be the pinion of choice, but I really like the helical ones from align (much less noise). So would it be a good setup to use the 13t helical from align, or would that pretty much cancel the option to use the governor mode?

I want around 2100/2200 RPM and I have a very power consuming flight style, which did work ok with the 600XL/FP5000 6s packs, but I saw the NEU1910 setup fly... and I was hooked. So please give me some good pinion advice so I can profit the most of my upgrade!!

This is also my first CC esc, so I could use some advice about those to!

Cheers,

Richard
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Old 05-10-2008, 12:51 PM   #93
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helical gears should be avoided as they create side force on the motor shaft in my opinion. With the revco pinions make sure you dull the teeth a little or you will eat through main gears.

The readyheli HS calculator says a 13 should give you 2139....but when you look at flight data from people running this setup for some reason the actual headspeed seems to be higher then is calculated. Not sure why.

Whatever pinion you use in fixed endpoints you will need to go 1 higher for governor mode(as a general rule). I like to have a couple of spare pinions of diffent sizes so if one doesn't work as I want I can change it out without waiting again for shipping.
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Old 05-11-2008, 07:26 AM   #94
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A couple of things to consider when setting the gearing.
1. A brand new pack will give higher HS than after 5-10 cycles where it have stabilized, at least to my experience. So it is quite wise to re-check after some flights
2. When using the HS calc it is reasonable to use the correct cell count (if it is 10S you put in 10S), due to the actual voltage will be very close to nominal under load.
But, when reading HS, it is quite common to do that with 0 pitch and with a fresh charged pack. Your reading will then be higher (like 11S input instead of 10S in calc). However, during a regular flight especially heavy loading the HS will be lower than readings.
3. You should give the the governor a headroom of +200-300rpm (depending calc input for Voltage) to able it to keep your desired HS during a flight.

So for my setup, I have geared it with a 14T pinion (straight) to make headroom for governed 2200-2250HS. According to Readyheli HS calc my gearing gives approx 2500HS with 13S input (fresh charged pack) and 2350 with 12S input (nominal under load).
To mention this setup is giving around 80A peaks and 3100W (imagine what the same amp peaks would be needed on 6S to make the same power output)

With this in mind, i normally find it rather strange that people reporting "good" governed HS of 2100-2200 on a 6S setup. It is simply not possible, without having a overstrained setup
and extremely stressed packs. Otherwise flying style must be very gentle.

Just my 0.2
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Old 05-11-2008, 01:13 PM   #95
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Quote:
With this in mind, i normally find it rather strange that people reporting "good" governed HS of 2100-2200 on a 6S setup. It is simply not possible, without having a overstrained setup
and extremely stressed packs. Otherwise flying style must be very gentle.
I didn't use the governor mode on 6s, I just used the 12t helical pinion and 100% throtle, but I pulled 125 amps easily... 2500 watts and over (up to 2600). Without a problem on my setup (600XL, old 75amp none heatsink align esc, 12t helical)

Anyway, so the 13t should be ok for my setup... running a 100% curve or running a governor mode (which shouldn't work very well because there isn't enough overhead?)

Anyway, thanks for the answers!

Cheers,

Richard
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Old 05-11-2008, 06:12 PM   #96
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Quote:
Originally Posted by Raptor Rulezzz View Post
I didn't use the governor mode on 6s, I just used the 12t helical pinion and 100% throtle, but I pulled 125 amps easily... 2500 watts and over (up to 2600). Without a problem on my setup (600XL, old 75amp none heatsink align esc, 12t helical)

Anyway, so the 13t should be ok for my setup... running a 100% curve or running a governor mode (which shouldn't work very well because there isn't enough overhead?)

Anyway, thanks for the answers!

Cheers,

Richard
Hi Richard

I wasnt especially thinking of you when mention the gov setup on 6S, but rather a lot of reports in the CC HV85 setup thread.
I did run the 1515 myself previously and it was powerful on the 12T helical. Was taching 2330 at 100% throttle. Later when re-checking after the packs had gone through some cycles, the rpm was in the range of 2150-2200 and is dropping quite much at full pitch. This setup was quite amp hungry as you say, and my packs was not especially happy.
Running the 12T helical on the XL motor was even worse for me, a very big endless heat issue. Both packs and motor went ridicously hot (the motor died early), except the Align 75A esc, which never made any issues at all.

Anyway, think you should run your setup with the 12T straight pinion the first 8-10 flights to do your initial parameter checking and taching. Also to make sure your setup is running cool.
If all OK, i probably go for the 13T straight as the best for fixed end point mode.
If you will use gov mode, i think the 14T straight is the way to go for best power, but it will strain the system more than 13T.

If you will like the helical pinion add 1 teeth up for all of them, ie 13, 14 and 15T respectively

Good luck, really hope your setup will be a success
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Old 07-17-2008, 08:14 AM   #97
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Default Kontronik tango max. rpm!

Excuse me. I'm so confused. Several posts on helifreak, including some in the "power systems that work" thread, recommand using a kontronik tango motor, 45-07, 45-08 or 45-09, all assuming that max. rpm for those motors are 30.000.
The kontronik home page also says it's 30.000.

Today I received a tango45-08. But the included operation guide says max rpm is 25.000. I have e-mailed kontronik, which says that 25.000 is the correct maximum rpm.

It seems my plan with 10s, the 45-08+jazz controller and 188/13 helical just vanished, because I need about 29.000 rpm to get a decent headspeed.


Are there several kinds of tango45-08 or what?

Last edited by fransine; 07-17-2008 at 08:24 AM.. Reason: correction
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Old 07-17-2008, 01:45 PM   #98
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Understand you`re confused. Kontronik is top quality but not top notch in technical info.
Consider your motor to be safe within 30K rpm. Previous motors was 25K max, but as far as info i have, they did some changes and 30K is now standard. So your 10S setup should be OK.
Why do you need 29000 to get decent head speed. The motors seems to be most efficient close to its maximum rating,but your desired HS depends on gearing of course.
Your 188/13 (helical) gearing will give around 2000rpm at 100% throttle. Maybe thats your desired headspeed ?, but you also might go for 170/13 or 170/14 if you like slightly/some higher HS. The 170/14 or even 170/15 might go best if governed.
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Old 07-17-2008, 03:07 PM   #99
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I'm glad to hear that 30k rpm is safe. Then it was not in vain I just installed it in my skookum-flybarless t-rex, to try tomorrow.

A head speed of 2000rpm is fine, doing sports flying (with less than 2 years of rc experience). I use two 5s/5000 flight-power evo25 that did not fit into my ion-X, making the t-rex a little nose-heavy though is has a rotorworkz hfx frame. I hope it's not too much load for that heli size.

Nice motor. Easy running, so it won't be a problem next time the autorotation bearing gets stuck.

Thanks. You saved my day and also prepared a path for higher headspeeds. Seeing forward to try 10s tomorrow.

Update: The headspeed is certainly too low with 13/188 gears. Will try 14/170 when I get a 14t pinion.

torben

Last edited by fransine; 07-19-2008 at 03:15 PM.. Reason: error corrections
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Old 08-12-2008, 12:16 AM   #100
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I just bought a used 600 with a single, somewhat abused 6s pack.
Figured I'd move to 8s right away. So I started reading these forums to figure out what to get (only flew 450's and smaller previously).
I read this thread and took special notice to the last post and video.
Looks like lots of power! My friends and I are loving the Scorpion motors we have purchased, so I went ahead and filled out the headpseed calculator on readyheli.com. To reach 2000 RPM headpseed, it states I need a 17 tooth pinion. Holy crap, is that right?
My setup would be CC 110HV (came w/ heli), 8S pack, the 740kv motor in the video... and a 17T pinion.

Am I fundamentally misunderstanding or misreading something?

Thanks!
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