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Old Dec 19, 2012, 09:23 PM
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How are those HK lander dynamically balanced units holding up?
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Old Dec 20, 2012, 11:35 AM
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Check out these numbers
2600kV motor with CS10 fan on 5S
I think my Meteor will start to move at last
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Old Dec 21, 2012, 08:19 PM
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Along with the messed up elevator system (fixed), my stock fan won't come off. I put it in the freezer but the collet just turns on the motor shaft and the screw doesn't come loose. You have to turn it really, really hard to achieve this. There is severe scraping of the fan on the shroud. It's worn nearly half way through! Haven't run it but I can see it and the motor is off center.

I have 4S 2650mah Nano's 25-50C that I want to use.

Would this fan unit work with these batteries you think?

http://www.hobbyking.com/hobbyking/s..._1000watt.html

The math says they should deliver 66A@25c and the fans max amps is 64. So the specs are ok but is reality ok as well? Would the 4000Kv unit be better? AND how do you think this would fit in the Meteor? I don't see any mounts on it. This is my first EDF unit so have some mercy please!
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Old Dec 21, 2012, 11:16 PM
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Hi jrjr,
I have that edf with the 3580kv motor running 4S 3000mah 35C batteries in my Meteor.
I've had approx 150 flights with this setup, it pulls approx 60 Amps from the stock ESC.
Its a real pleasure to fly, very smooth, nice sound, almost unlimited vertical but the flight times are quite short though. My timer is set to 3:30 mins and usually have 25% left in the battery with some throttle management.
Hope this helps.
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Old Dec 21, 2012, 11:28 PM
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Quote:
Originally Posted by fg1972 View Post
Hi jrjr,
I have that edf with the 3580kv motor running 4S 3000mah 35C batteries in my Meteor.
I've had approx 150 flights with this setup, it pulls approx 60 Amps from the stock ESC.
Its a real pleasure to fly, very smooth, nice sound, almost unlimited vertical but the flight times are quite short though. My timer is set to 3:30 mins and usually have 25% left in the battery with some throttle management.
Hope this helps.
Good info. Thanks
Might have to break down and get some bigger batteries then
Hmmmm then maybe I would be better off getting the 10 blade and some 5 cell..... have to think on it.
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Old Dec 22, 2012, 02:10 AM
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hehe.... much nicer sounding with the 10 blade.
I have the 5 and the 10 blade versions.

Your battery would not cope. It would work... and die a short life.... (shorter than it should last)
You want at least 1.5x "capability" of what you will use at WOT.
eg 60Amps WOT.... you need 90Amps... and pref 120Amps...."Capability".
3000mAH... 30C (= 90A).... or 40C (=120A)
This gives the battery a much easier life, and it will last longer.
Or... you could try to be "nice" to yours.... hehe. Hard to fly it within power limits, so that is unlikekly to work too well.

If you get the 10 blade version, it will use more power, for less thrust!
So if you want the most efficiency and speed, the 5-blade wins clearly.
If you want the CS10 "whoosh" - which is very nice in a Meteor (but well short of in a Durafly Vampire!) - then use the less efficient 10 blade version.

Then I "broke" my 5 blade version, trying to change it into a 10-blade version... LOL. All balanced and ready to go... test bench.... ran ok for a bit then BRRRRRRRRPPPPPP.... fan jammed and motor shaft was bent notably. BOO. I had statically balanced it, and ran it up through lower RPM to test it all first... so I don't know what happened.
So now I need another motor for that housing and CS10 rotor..... hmmm... the new HK "MAD" motor will do for that!

Oh yeah, all those Landers use 3.17mm shaft motors. That is ok IF it is all balanced well. But they are a lot weaker than a 4mm shaft.
I would be very tempted to get the RC-Castle CyclonePower setup instead. $84. So it costs a bit more, but it is also lighter. Same motor specs, but 4mm. The IR450-2200kv one.
http://rc-castle.com/shop/product_in...oducts_id=2864
Oh... but you have to assemble and balance it !!
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Old Dec 22, 2012, 02:59 AM
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Just a small correction, I've double checked my batteries and they are 4S 3000mah 40-50C not 35C as per my previous post. They come down just warm after each flight with the Lander 3580kv EDF.
I am thinking of replacing the batteries soon as they have had countless charge cycles and have thought about maybe trying 5S with my current EDF.
What are peoples experiences/thoughts of putting 5S through the Lander 3580kv EDF?
Obviously it will pull more than 60 Amps so the stock ESC will need to be upgraded.
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Old Dec 22, 2012, 07:48 AM
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Quote:
Originally Posted by PeterVRC View Post
hehe.... much nicer sounding with the 10 blade.
I have the 5 and the 10 blade versions.

Your battery would not cope. It would work... and die a short life.... (shorter than it should last)
You want at least 1.5x "capability" of what you will use at WOT.
eg 60Amps WOT.... you need 90Amps... and pref 120Amps...."Capability".
3000mAH... 30C (= 90A).... or 40C (=120A)
This gives the battery a much easier life, and it will last longer.
Or... you could try to be "nice" to yours.... hehe. Hard to fly it within power limits, so that is unlikekly to work too well.

If you get the 10 blade version, it will use more power, for less thrust!
So if you want the most efficiency and speed, the 5-blade wins clearly.
If you want the CS10 "whoosh" - which is very nice in a Meteor (but well short of in a Durafly Vampire!) - then use the less efficient 10 blade version.

Then I "broke" my 5 blade version, trying to change it into a 10-blade version... LOL. All balanced and ready to go... test bench.... ran ok for a bit then BRRRRRRRRPPPPPP.... fan jammed and motor shaft was bent notably. BOO. I had statically balanced it, and ran it up through lower RPM to test it all first... so I don't know what happened.
So now I need another motor for that housing and CS10 rotor..... hmmm... the new HK "MAD" motor will do for that!

Oh yeah, all those Landers use 3.17mm shaft motors. That is ok IF it is all balanced well. But they are a lot weaker than a 4mm shaft.
I would be very tempted to get the RC-Castle CyclonePower setup instead. $84. So it costs a bit more, but it is also lighter. Same motor specs, but 4mm. The IR450-2200kv one.
http://rc-castle.com/shop/product_in...oducts_id=2864
Oh... but you have to assemble and balance it !!
I have read this whole thread and absorbed it pretty well so I understand the differences in the fans pretty well. I was hoping to use my batteries in the stock setup for a season but that's not going to work out I guess. Unless someone could suggest a good comparable to stock edf unit that would work with my batteries.

I have been flying the Habu on Phoenix simulator and manage that fine. I also have the big F27Q stryker with lots of flights on it. I can fly that fine as well. It's my understanding that the Meteor flies a bit lighter than the Habu in stock config. If I were to go 10 blade and 6S would it fly significantly heavier than the Habu? Just curious, I like the 'light' concept.

I have also read the thread here on dynamically balancing with a cellphone. Is this the method that you use?

Quote:
Originally Posted by fg1972 View Post
Just a small correction, I've double checked my batteries and they are 4S 3000mah 40-50C not 35C as per my previous post. They come down just warm after each flight with the Lander 3580kv EDF.
I am thinking of replacing the batteries soon as they have had countless charge cycles and have thought about maybe trying 5S with my current EDF.
What are peoples experiences/thoughts of putting 5S through the Lander 3580kv EDF?
Obviously it will pull more than 60 Amps so the stock ESC will need to be upgraded.
In reading the HK comments below the 3850 listing people say that you have to be pretty sparse on full throttle runs on 5S but it will work if managed correctly. Not sure I would chance it but that's just me. Sure would be fun to try though!
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Old Dec 22, 2012, 09:29 AM
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I ran mine with a very high proportion of WOT usage, the stock fan on 5S, and that never had a problem. But I changed to a CS10 before finding out how long it would have lasted... but it had done a lot of flights till then.
It is possible that some motors are that bit better, and others are that bit worse, so depending on your luck you might fry it in no time... or last long term like mine did.

You can fly the Meteor just as it comes, on 4S, and it flies ok. Just nothing amazing.... very average and lack lustre. But it flies. So there isn't any real reason that you can't use your batteries just as is.
I would guess that the Stryker would give you the reference to then see the Meteor on 4S as 'nothing special', hehe.
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Old Dec 22, 2012, 09:37 AM
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Quote:
Originally Posted by PeterVRC View Post
You can fly the Meteor just as it comes, on 4S, and it flies ok. Just nothing amazing.... very average and lack lustre. But it flies. So there isn't any real reason that you can't use your batteries just as is.
I would guess that the Stryker would give you the reference to then see the Meteor on 4S as 'nothing special', hehe.
Yea but my stock fan is not usable so I am looking for a replacement setup.
Been browsing and am looking at this setup-

http://www.hobbyking.com/hobbyking/s...dproduct=18543

http://www.hobbyking.com/hobbyking/s...inch_70mm.html

http://www.hobbyking.com/hobbyking/s...idproduct=9959

Will my stock 60A esc handle this combo?
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Old Dec 22, 2012, 10:04 AM
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I would expect that 2800kv on 4S is too low a power in that fan.
You don;t even get great power out of a CS10 with that 2800kv.... you need mroe towards 3000kv for good power in that.
And at 2800kv, which is less than the stock Meteor's 3000kv, in quite similar fans.... you didnt achieve much.
You really need a 3200kv to 3500kv motor for 4S in that.
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Old Dec 22, 2012, 10:05 AM
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Personally, I have bought a few of these fans and love them. Very sturdy and well balanced right out of the box.

http://edfhobbies.com/index.php?rout...product_id=214



I am running that fan and this motor in my FMS F4 and its crazy...I plan on putting the same setup in my meteor at some point.

http://edfhobbies.com/index.php?rout...product_id=176

Or if you are loking to go with a high blade count CS Fan, EDF Hobbies seems to have a good offering for that fan and they carry the fan itself.

http://edfhobbies.com/index.php?route=common/home



Quote:
10 Bladed Test Data:



70mm (10 Blade) + IR550-3300kv-40 Motor + 14.8v Static Thrust: 1580g 68A

70mm (10 Blade) + IR550-2800kv-32 Motor + 14.8v Static Thrust: 1350g 58A

70mm (10 Blade) + IR550-2800kv-32 Motor + 18.5v Static Thrust: 1900g 78A

70mm (10 Blade) + IR550-2200kv-40 Motor + 18.5v Static Thrust: 1700g 55A

70mm (10 Blade) + IR550-2200kv-40 Motor + 22.2v Static Thrust: 2180g 68A



Test Data performed with CS10 blade rotor and Cyclone Power Special Metal Fan. Look for them in the 70mm motor section.



5/6 Bladed Test Data:



70mm (6 Blade) + IR550-3300-32 Motor + 14.8v Static Thrust: 1300g 50A

70mm (5 Blade) + IR500-3700-40 Motor + 14.8v Static Thrust: 1400g 48A

70mm (6 Blade) + IR500-3700-40 Motor + 14.8v Static Thrust: 1500g 64A



70mm (5 Blade) + IR550-2800-32 Motor + 22.2v Static Thrust: 2050g 57A

70mm (6 Blade) + IR550-2800-32 Motor + 22.2v Static Thrust: 2130g 68A
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Old Dec 22, 2012, 10:06 AM
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Quote:
Originally Posted by PeterVRC View Post
I would expect that 2800kv on 4S is too low a power in that fan.
You don;t even get great power out of a CS10 with that 2800kv.... you need mroe towards 3000kv for good power in that.
And at 2800kv, which is less than the stock Meteor's 3000kv, in quite similar fans.... you didnt achieve much.
You really need a 3200kv to 3500kv motor for 4S in that.
I've got a ZIPPY Flightmax 4000mAh 5S1P 40C in that list too
Will save the 4 cells I have for their intended use.
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Old Dec 22, 2012, 10:19 AM
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Oh ok yeah....
Well on 5S it might go a bit too high. It would be ok if it were a bigger motor, but it might be marginal with the L2855. I am not really sure.
I guess the Dynam Me-262 uses 3500kv on 4S in the 5-blade..... so...
14.8 (4S) x 3500 = 51,800
51,800 / 18.5 (5S) = 2800
So they match.... for a 5-blade.
A 6-Blade is a touch more load/power.
Then the L2855 probably doesn't quite match the Dynam 3500kv build, but it is not far off.

You would need to try it and see the Amps/Watts. If it is over 1000W then it won't cope for too long. 900W or lower woukld be fine.
And whatever output (thrust) that gives..... but it should be good.
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Old Dec 22, 2012, 11:07 AM
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So I will use the stock ESC in another project and pick up an 80A Red Brick for the Meteor to be safe. Love the Red Bricks! I like to use a separate ubec anyway so these fit my bill just right.

Still not sold on the quality of this 6 blade fan so i will have to look around a bit more. The price is definitely right though! lol
Most times you get what you pay for though.
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