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T-REX 600 › CC 85 HV esc for 4000mAh?
10-28-2011 12:28 AM  6 years agoPost 1
Stephen Born

rrElite Veteran

USA

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Will a Castle Creations 85 HV esc be sufficient for a T-Rex 600 ESP running 1 4000mAh or should I go for the 100 HV?

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10-28-2011 01:22 AM  6 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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The fact that you have a 4000 mah battery has nothing to do with the amp carrying capability of the ESC. You could use a Phoenix 10 with a car battery if you're running a small motor.

The MOTOR and the current it will be drawing on average, and peak, will determine the sizing of the ESC.

In the HV series, there seems to be no 100 HV and the 120 would be overkill. I'd recommend the ICE 100, don't use the built-in regulator to run your electronics, use something like the CC BEC Pro instead. You'll have reserve capacity in the ESC for the motor, should you wish to move up in motor capability.

If you're thinking of using a 4000 mah 6S LiPo on a 600, that's a bit small, too. Consider at least 5000 mah minimum, otherwise you'll be charging more than you'll be flying.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-28-2011 01:33 AM  6 years agoPost 3
Stephen Born

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USA

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Thank you. I see a lot of members here running a CC 85 HV or a Align 100 esc. I am using the 600m motor and I have 4 4000mAh batteries.

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10-28-2011 12:23 PM  6 years agoPost 4
jsenicka

rrProfessor

Eagle River, WI

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You need an HV ESC for running HV. In other words, above 8S.
You are running 6S. You need about 100 amps of ESC for 6S, so the 85HV is not the way to go.
85HV would be fantastic for a 12S setup

Jim Senicka
Team Manager, GrandRC Flight Team

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10-28-2011 09:03 PM  6 years agoPost 5
Richardmid1

rrProfessor

Leeds, England

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An 85 amp ESC is fine for a 6s 600 with the 600M motor.

If you fly like Bert Kammerer I would consider a 100 amp ESC.

60% of the time, it works every time!

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10-28-2011 09:07 PM  6 years agoPost 6
OLROY

rrKey Veteran

Wichita Ks

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I ran CC 85HV and CC Bec Pro on my 550E did awesome with 6S

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10-29-2011 04:19 AM  6 years agoPost 7
Stephen Born

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USA

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You need about 100 amps of ESC for 6S, so the 85HV is not the way to go.
An 85 amp ESC is fine for a 6s 600 with the 600M motor.
Two respectable heli pilots here on RR with two different opinions. Can you see where I can get confused?

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10-29-2011 04:30 AM  6 years agoPost 8
dkshema

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Cedar Rapids, IA

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The confusion stems from our inability to figure out if this is going to be a 6S setup, or and 8S setup, or something else.

6S -- 100A ESC, and a CC BEC Pro would do fine.
8S -- ICE 85 HV and a CC BEC Pro would do fine.

I believe a 6S setup, 85A ESC is a bit marginal.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-29-2011 04:36 AM  6 years agoPost 9
Stephen Born

rrElite Veteran

USA

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This is going to be a 4000mAh or 5000mAh 6s running a 600m for a T-Rex 600 ESP. The kit manual has an Align 100 amp esc for the recommendation. However, I have seen many setups here on RR with an 85. They are running a 6s.

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10-29-2011 04:54 PM  6 years agoPost 10
dkshema

rrMaster

Cedar Rapids, IA

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I looked at some plots from my HK600GT with a 600MX motor installed, 15-tooth pinion, CC ICE 100 ESC, Radix 600 mains, Align 95 mm carbon tails.

BTW, that data-logging feature is pretty cool!

If you're generally just flying around, not pushing your helicopter, the average current delivered to the motor looks to be in th 60 - 65 amp range. Once you start doing creative stuff with the collective, however, the picture changes. It's common to hit about 90 amp peaks on a regular basis, and I've seen a few peaks up at 121 amps and 134 amps.

So, yes, you can get by with an 85A controller for much of your average flying. Once you start putting a demand on the heli with collective, an 85A ESC is generally spending quite a bit of time near its rated continuous limit, and a good percentage of the time, you're actually operating in the "burst" or peak current delivery region.

I believe on 6S, an 85A is marginal, 100A gives you reasonable margin and you're operating in its safe operating area most of the time. If you jump up to an 8S system, the 85A would probably work quite well, with margin.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-29-2011 06:57 PM  6 years agoPost 11
Stephen Born

rrElite Veteran

USA

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I believe on 6S, an 85A is marginal, 100A gives you reasonable margin and you're operating in its safe operating area most of the time.
Then a CC 100HV esc will be sufficient. That is what I needed to know. Thanks for the guidance!

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10-29-2011 07:40 PM  6 years agoPost 12
dkshema

rrMaster

Cedar Rapids, IA

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CC doesn't MAKE a 100 HV, they have an 85 and a 120 HV.

I use the CC ICE 100, and it works great. I just don't use the built-in BEC (disconnect the red wire in the RX cable harness). You can use the ICE 100 with up to an 8S input, so you COULD at a later date go to an 8S setup and not have to change ESCs.

I use the CC BEC Pro to power all the on-board electronics, it's connected to the flight battery so I still have one battery in the heli.

BTW -- use at least 5000 mah batteries, 4000 will simply limit your flight time to 3-1/2 to 4 minutes per charge.

If you don't have one, get the Phoenix Link USB program adapter. The last two ICE 100's I've purchased have had a coupon inside good for either a free Phoenix Link or a Programming card. I used 'em, and now have a programming card (never have used it), and a spare Phoenix Link.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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