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Old Jan 30, 2013, 06:27 PM
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United States, TX, Grand Prairie
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Originally Posted by Maxthrottle View Post
Drafting rules with the arrow on the outside would be 41.4mm OD. So they may be shooting for the 39mm motors.
Curious if they are making a finned heat sink to fit into the slots around the motor.
I hope not...there are tones of 40mm motors that would work find
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Old Jan 30, 2013, 11:02 PM
You are a "go" for reentry
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True the walls aren't going to be much over 1.4mm so it could be a 40mm ID. Just depends how thick that wall is. Guess its a wait and see...
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Old Jan 31, 2013, 12:31 AM
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Brisbane, Australia
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Hey Guy's.

I have a NIB CS12 an I bought from HK, and although i put the rotor on the scales yet, I'm tipping is going to be one of the doggy 49g version.

I'm about to order a fan from x-flight, but I couldn't see the rotor just on its own? and was thinking of the HK SK3 1500kv to run on 8s. Anyone done this or any thoughts?

http://www.hobbyking.com/hobbyking/s...dproduct=28503

Is the HET 2.5 times a better motor or get that much better performance because that's roughly the price difference.

P.s. going into a glassed+detailed flyfly Hawk which is looking to be about 4.5kg ready to fly.

Thanks

Dave
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Old Jan 31, 2013, 01:06 AM
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I haven't seen that anyone has done it, but it should be able to do that.
Hard to know for sure, but you would expect a cheaper motor to use weaker magnets, lower temp windings, and probably cheaper bearings. (any or all of those).
But I expect it would still work well anyway. So you should be fine enough for that price.

You should have considered the HK Lander 10blade 1000kv setup. Its numbers look good, and it is alloy and ready to go. Run it on 8S or 9S.
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Old Jan 31, 2013, 01:31 AM
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Greece, Attica, Athens
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Originally Posted by ticketec View Post
I'm about to order a fan from x-flight, but I couldn't see the rotor just on its own? and was thinking of the HK SK3 1500kv to run on 8s. Anyone done this or any thoughts?
I think that from what people have posted here 1500kv is good as a mid-range 6S performer. Given its amp rating, it could possibly be pushed to 7S but 8S will most likely be too hot.

Most people here used HET 1400kv motors for hot 8S setups.

It's only 68mm long so unless fitted to an alloy housing for extra heat dissipation through the shroud, my personal opinion is to not go for 8S. The Dr Mad Thrust 1200kv looks good but more expensive.

Also, especially for 8S use, you could also decide to not use your suspect CS12 at all ( I have 3 sitting on the shelf) and use the shroud together with the new one piece 12 blade rotors along with the appropriate DPS shaft adapter.
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Old Jan 31, 2013, 10:52 AM
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I just put my order in for the ARC 1400kv, to install in the CS shroud, with the new ONE PIECE 12 blade RCLander fan. I'm going to be running 8s in a H.T.G. L-39. Can anyone say "Fire in the Hole...?" I'll post bench results, when everything is hooked up on the test jig....
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Old Jan 31, 2013, 11:23 AM
Hey Ya'll!! Watch THIS!!
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1400 on 8S should be fine. You don't get into trouble until 11S
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Old Jan 31, 2013, 06:42 PM
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Ok dumb question here.. I just received my first cs 12 90 from Xflight. I planed to assemble it with Hysol or GG but it seems to be glued together already.

Are you guys pulling these apart and reassembling?


Thanks!
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Old Jan 31, 2013, 08:43 PM
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Quote:
Originally Posted by ticketec View Post
Hey Guy's.

I have a NIB CS12 an I bought from HK, and although i put the rotor on the scales yet, I'm tipping is going to be one of the doggy 49g version...
X-flight does have some spare blades for the fan 22usd

Quote:
I'm about to order a fan from x-flight, but I couldn't see the rotor just on its own? and was thinking of the HK SK3 1500kv to run on 8s. Anyone done this or any thoughts?

http://www.hobbyking.com/hobbyking/s...dproduct=28503
This motor looks promising, good cooling and 8mm shaft...I don't think it'll burn up or give you trouble...just no one has but it to thrust test yet...should be around 9-10lbs at 3000k watts.

Fan sounds really good in the FF model in the YT vids I've seen.

Quote:
Is the HET 2.5 times a better motor or get that much better performance because that's roughly the price difference.
It's proven..

Quote:
P.s. going into a glassed+detailed flyfly Hawk which is looking to be about 4.5kg ready to fly.
Please show pics....I have a FF Hawk in the garage screaming to be built and repainted T-45 colors
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Old Jan 31, 2013, 08:45 PM
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Quote:
Originally Posted by SKYRYDER1000 View Post
Ok dumb question here.. I just received my first cs 12 90 from Xflight. I planed to assemble it with Hysol or GG but it seems to be glued together already.

Are you guys pulling these apart and reassembling?


Thanks!
show pic, I do notice the blade bases are lot less concave now...

If you're going to put more than 3500 watts through I'd use GG
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Old Feb 01, 2013, 09:00 AM
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NEW JERSEY U.S.A.
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Basicly what I am asking is how do I disassemble my assembled rotor down to 12 seperate blades.

Like I said it arrived fully assembled and I can't seem to get it apart...

I only plan to run about 2000watts in a flyfly Mirage 2000 using a HET 1680 kv motor. (If my Mirage ever gets here from HK).
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Old Feb 01, 2013, 10:21 AM
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Canada, ON, Burlington
Joined Jan 2009
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Some of the CS9012 blades fit tighter into the retaining "washers" than others. I wouldn't bother disassembling it unless it doesn't run true. You won't need any glue or "bonding" assuming it is the 51g rotor (blades and retaining rings, no adapter or spinner).
You will still need to dynamically balance the whole motor/fan regardless of what you do.
Cheers
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Old Feb 01, 2013, 03:19 PM
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United States, NJ, Trenton
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Quote:
Originally Posted by SKYRYDER1000 View Post
Basicly what I am asking is how do I disassemble my assembled rotor down to 12 seperate blades.

Like I said it arrived fully assembled and I can't seem to get it apart...

I only plan to run about 2000watts in a flyfly Mirage 2000 using a HET 1680 kv motor. (If my Mirage ever gets here from HK).
Sky-- What did shipping run you? I put the 90mm MIG-15 in my cart but shipping was over $100. I was shocked. I figured it would be $40-50 tops.
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Old Feb 01, 2013, 03:35 PM
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Thanks for the response 4stripes. I finally got it apart after spending some time with it.

These fan blades had a super snug fit. I probably should have left it alone.

I plan to send Tamjets an email in the near future about balancing the fan unit.

"By the way" I enjoyed your Mirage 2000 build thread some very good mods and info there.
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Old Feb 01, 2013, 04:02 PM
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INVOICE TOTAL: $101.04USD
SHIPPING: $68.73USD

I am only about 40-50 miles from you.

Shipping should be about the same I would figure.

I am going on week three of waiting for it to arrive.
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