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Old May 22, 2012, 09:01 AM
Kamikaze Ace
Glacier Girl's Avatar
USA, FL, Lakeland
Joined Jan 2010
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So who's been running the 2855/2100 kv on 6S for any length of time?

I'm really leaning towards it for a one or maybe two banzai runs at our club's speed challenge this year.
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Old May 22, 2012, 09:16 AM
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Greece, Attica, Athens
Joined May 2011
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Quote:
Originally Posted by Glacier Girl View Post
So who's been running the 2855/2100 kv on 6S for any length of time?

I'm really leaning towards it for a one or maybe two banzai runs at our club's speed challenge this year.
GG,

I run it for about 10 flights as a proof of concept. It is reliable provided that:

1. Suitable ESC(my best match was Plush) set on low timing to keep amps 60 or below.
2. Make sure amps are kept to a maximum of 60.....
3. Oil the 2 bearings.
4. Don't use very high discharge batteries

The above gives about 2Kg of thrust. The important thing is to find and configure the right ESC. Slightly more thrust than the 2300kv on 5S.

A different ESC or high timing may push that amps towards the 70 mark and thrust to around 2.2-2.3 but it gets hot.
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Old May 22, 2012, 09:24 AM
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United States, TX, Grand Prairie
Joined Nov 2005
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Originally Posted by anlucas View Post
...4. Don't use very high discharge batteries.....
A note on 65c Packs...

A heated 65c pack big or small seems to pick up voltage or hold voltage a lot longer under load especially after being warmed....a motor that is running next to it's peak on 45c packs for instance (which is a good thing IMHO, you're getting all of what you pay for) isn't going to like those 65c packs at 10 - 20% more amps.

On the bench I wasn't testing a pack long enough for it to warm up, a warmed pack is going to drop IR slightly and either hold voltage or pick up a half to full volt (which is what the HK Nanos are doing)

I've burned 5 motors (CPs, MB1, AMMO, TACON) on my 65c packs in the last 4 months, fortunately I'm experienced at dead stick landings
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Old May 22, 2012, 09:25 AM
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United States, TX, Grand Prairie
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Originally Posted by anlucas View Post
GG,

I run it for about 10 flights as a proof of concept. It is reliable provided that:

1. Suitable ESC(my best match was Plush) set on low timing to keep amps 60 or below.
2. Make sure amps are kept to a maximum of 60.....
3. Oil the 2 bearings.
4. Don't use very high discharge batteries

The above gives about 2Kg of thrust. The important thing is to find and configure the right ESC. Slightly more thrust than the 2300kv on 5S.

A different ESC or high timing may push that amps towards the 70 mark and thrust to around 2.2-2.3 but it gets hot.
Hows the heat coming off the motor, any changes in winding brightness?

TIA for any input
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Old May 22, 2012, 09:31 AM
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Greece, Attica, Athens
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Originally Posted by erh7771 View Post
Hows the heat coming off the motor, any changes in winding brightness?

TIA for any input
It's coming off good provided that the temperature after the flight doesn't go above 150F.

This is why I keep the amps below 60...
High timing or 65-70 amps pushes the temp 180+F.

I don't see any changes to the windings.
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Old May 22, 2012, 09:32 AM
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United States, TX, Grand Prairie
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Quote:
Originally Posted by anlucas View Post
It's coming off good provided that the temperature after the flight doesn't go above 150F.

This is why I keep the amps below 60...
High timing or 65-70 amps pushes the temp 180+F.

I don't see any changes to the windings.
Dangit, the motors are out of stock...

You got any extra?

Regards
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Old May 22, 2012, 09:46 AM
How close are those trees?
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Perth, Western Australia
Joined Apr 2008
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Quote:
Originally Posted by RugFlyer View Post
Goody, good to see you're working on the J11B, mine should be here Monday!
Speaking of the CS Housing mounting holes, I use 3mm washers with all four mounting screws and it centers the motor and has worked fine in my housing's.

-Rick
Hey Rick

I can't quite picture (hint hint :roll eyes how your using the washers in your CS housing given the high lip around where the motor screws go?

I normally use washers with my other housings but just couldn't see how they could be used with the CS.

Cheers anyone who can point me in the right direction.

Dave
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Old May 22, 2012, 10:28 AM
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Greece, Attica, Athens
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Originally Posted by erh7771 View Post
Dangit, the motors are out of stock...

You got any extra?

Regards
Got 2 of them, 1 is used.

I am a long way from you...
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Old May 22, 2012, 04:18 PM
I make bad look so good.
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League City, Texas
Joined Sep 2006
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Has anyone tried this motor?

http://rc-castle.com/shop/product_in...oducts_id=1553

You have to scroll down and the motor is listed as an optional motor for the Freewing F-16. It is shown to be a CP480-3300-40EDF 3300kv Upgrade Motor. It is an outrunner, but does NOT have the standoff like this CP motor.

http://rc-castle.com/shop/product_in...roducts_id=560

The first one I'm sure has the 4mm shaft while the second one is the 3.17mm shaft. The problem though is the first motor isn't listed seperately on the RC Castle website.
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Old May 22, 2012, 05:34 PM
How close are those trees?
Goody63's Avatar
Perth, Western Australia
Joined Apr 2008
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Quote:
Originally Posted by SteveC68 View Post
Has anyone tried this motor?

http://rc-castle.com/shop/product_in...oducts_id=1553

You have to scroll down and the motor is listed as an optional motor for the Freewing F-16. It is shown to be a CP480-3300-40EDF 3300kv Upgrade Motor. It is an outrunner, but does NOT have the standoff like this CP motor.

http://rc-castle.com/shop/product_in...roducts_id=560

The first one I'm sure has the 4mm shaft while the second one is the 3.17mm shaft. The problem though is the first motor isn't listed seperately on the RC Castle website.
Hi Steve

Search this thread and you'll find quite a bit of data on the CP 3300.

My little report here.

I got my 4mm version from RC Castle when I ordered the F-16 but can't remember if it was listed separately.

Cheers
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Old May 22, 2012, 07:54 PM
Kamikaze Ace
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USA, FL, Lakeland
Joined Jan 2010
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Andrew, Erh, OK, thanks.
I'm going to run Nano's, paired 3S3000 25-50C, Castle 80 with heat sink. Low timing.
BEC disconnected, and heat sink sits slightly down into the intake for cooling.

We'll see what happens.



Funny for the day. Ran up the set up on 4S today to check thrust (nearly 1:1 in the X airframe) Held it a little too close while doing so.
WHOOMP! Sucked my Tee shirt into one of the intakes!
Thank goodness for long intakes, no damage done. Other then nearly wetting myself.
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Old May 22, 2012, 11:23 PM
"LiPo-Blaster"
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Duluth, GA
Joined Apr 2009
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Quote:
Originally Posted by Goody63 View Post
Hey Rick

I can't quite picture (hint hint :roll eyes how your using the washers in your CS housing given the high lip around where the motor screws go?

I normally use washers with my other housings but just couldn't see how they could be used with the CS.

Cheers anyone who can point me in the right direction.

Dave
I placed the washers on top of the high lips and may have used slightly longer screws to secure the motor, but I'm not certain. It's been a couple of weeks and I've assembled a few more edf's since then so it all kind'a runs together... lets blame it on short term memory!

I'll check a CS-10 with the 2855/2300kv motor tomorrow and get back to ya.

Just started on my TWM JB-11 today, what an awesome kit!
With it's HUGE Intakes(3.25"wide x 3.85"high) and Exhaust Nozzles( 68mm) plus the long 17" Intakes it's taylor made for the ChangeSun 10 Blade Fans! May close the exhaust down to 60mm or so.

I'm doing some additional mods to mine starting with replacing the slightly out of scale nose cone with a Freewing SU-35's, looks-more better. Also using the FW SU-35 E-Retracts that's going to be a job. Already cut out for the nose gear. I ripped the gay pilot outt'a there too replacing him with a more scale slightly smaller one and detailing the cockpit. May change it to an SU-27 since I have some good Russian decals. Sorry, I got carried away, I'll post details over on the TWM JB-11 thread...

Rick
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Last edited by RugFlyer; May 22, 2012 at 11:38 PM.
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Old May 22, 2012, 11:43 PM
"LiPo-Blaster"
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Duluth, GA
Joined Apr 2009
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Originally Posted by jk671 View Post
Well please by all means.... when you guys find the best het motor on 6S for this fan please let me know!!! I personally think the 2W-30 is the way to go for performance and efficiency on 6S.... but I don't have those types of funds to test my theory for myself... oh yeah please include a video!
Well, the HET 3w25(1810kv) would be the more efficient 6S setup while the 2W30 (2200kv) would be the Performance 6S setup.
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Old May 23, 2012, 12:54 AM
3DHOG
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USA, CA, Aromas
Joined Sep 2010
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Quote:
Originally Posted by RugFlyer View Post
Well, the HET 3w25(1810kv) would be the more efficient 6S setup while the 2W30 (2200kv) would be the Performance 6S setup.
rug
I think the 2150 or 2200 is perfect at around 70amps the 1810 is too low of kv to make any power on 6s it would be well under 40k rpm and not enough power to overcome the weight of the 6s pack
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Old May 23, 2012, 01:21 AM
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United States, CA, SF
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GG,

If you want max RPM For your up coming race there is a 2000 KV motor which should be good for 6S "AND" 7S.
No doubt on 6S it will have more RPM than the 2100 KV you mentioned.

Also if you want to use a low AMP HV ESC, I have a 11S/12S option.

Possibly knocking on 50,000 RPM range.

Those motors are sitting new in a box.


Let me know in a PM if interested.

Gryphon
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