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Old Apr 22, 2006, 09:15 AM
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Taiwan
Joined Jul 2005
166 Posts
New Product
New !! 70mm Electric Ducted Fan Unit

This is AirPower New 70mm Electric Ducted Fan Unit.
Please visit the detail : http://www.airpowernet.com/index.php
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Last edited by AirPower RC; May 02, 2006 at 09:20 AM.
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Old May 21, 2006, 11:47 PM
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Joined Feb 2006
96 Posts
hi, may I know what kind of motor shaft diameter does this fan support?
Can it suport the 3.2mm diameter shaft motors?

This fan looks like the 5 blade EDF from Himodel
see www.himodel.com
Search for 70mm EDF

Cheers
Galactica
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Old May 22, 2006, 12:33 PM
From the bowels of MI
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Has anyone inspected this yet? What does the quality look like? I'm wondering if this would be a suitable candidate for a MicroJet EDF conversion... No power specifications on the website..
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Old May 22, 2006, 12:40 PM
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Joined Mar 2006
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I'm wondering if this would be a suitable candidate for a MicroJet EDF conversion...

Used a previous airpower unit on a microjet, really hot motor melted the shroud but it went very well!
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Old May 22, 2006, 06:42 PM
From the bowels of MI
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Quote:
Originally Posted by galactica
hi, may I know what kind of motor shaft diameter does this fan support?
Can it suport the 3.2mm diameter shaft motors?
From the website spec:
Motor Shaft : 2.3 / 3.0 / 3.17

Does 70mm dia fan sound right for MicroJet use? Looks about right to me but I've never actually flown one yet.

-Wayno-san
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Old May 23, 2006, 03:35 AM
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AirPac Models's Avatar
Honolulu, HI
Joined Nov 2004
118 Posts
Wayno-san,

You are correct. The new AirPower AP-700 motor shaft come with 3 sizes option. This 70mm fun unit is designed for 400 to 480 EDF Jet. We have some fan unit here, should have fly report very soon.

Eric
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Old May 24, 2006, 03:50 AM
Electric Hippy
Brisbane
Joined Nov 2005
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How many watts can it handle?
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Old May 24, 2006, 08:20 AM
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Joined Dec 1999
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Yes, I would like to see some thrust and wats in data.

Looks good though.
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Old May 24, 2006, 02:33 PM
go fly! no crashes!
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Honolulu, HI
Joined Jun 2003
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I've got one and it does look good. Shroud is a hair thicker than the Minifan, so it may need a junction to connect to tight fitting intakes designed for the MF480.

I'm currently balancing the rotor right now, but I have a Mega 16/17/2 to fit into it since we're all familiar with the specs on that motor. Will be testing this on the standard 3s2p pack.

My original idea of putting this into my HET Skyray won't work, the ducting back there is really tight. The back up is a previously flown HET F-18 which is currently almost ready to fly (fan unit and esc was moved to another project) Should be flying this on Sunday.

I'll do some bench testing for numbers before mounting it into the F-18. Will have those posted in a day or two.

Thanks to Eric at AirPac for providing this unit for testing! Btw, I'm going to need to come see you for a AP900 for the big F-18 I'm building.

David
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Old May 25, 2006, 03:52 AM
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Honolulu, HI
Joined Jun 2003
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Some pics and measurements. ID/OD. measurements in mm except.

AP700 MF480
Motor tube 29.25/31.60 28.85/31.85
Shroud 68.8/73.19 68.78/71.59
Rotor Hub 32.25 30.22

FSA 2912sq mm 2912sq mm (rounded)
4.5sq in 4.5sq in

Yes, I found this funny, the Fan Swept Area ended up being the same (once I rounded - the difference were so minute, I don't think it matters).

The problem will be that the shroud is a bit thicker, which means that when I mate it to the intake and exhaust ducts, I'll need to make those a hair larger also.

Hope to measure thrust, watts and amps for the Mega 16/17/2 on a TP 3s2p 4200 pack possibly tomorrow night, else Saturday afternoon (right before it goes into the Het F-18.
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Old May 28, 2006, 02:19 AM
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ready to test

Mega 16/17/2 mounted with 4 screws. Doesnt wobble at all in the motor tube. Not that there is a lot of space for it to.

Will be mounting it into the F18 at the field tomorrow as Jet Joe forgot to bring it with him today.
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Old May 28, 2006, 04:12 AM
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Hmm, four mounting points would make it less likely to wobble compared to the Wemo minifan's two screws.
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Old May 28, 2006, 04:21 AM
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Honolulu, HI
Joined Jun 2003
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yes. definitely. and i tried to wobble it in there too. wasn't able to, but i didnt want to flex it to the point were i'd cause a failure in the front mounting plate.

Ed, dont tell me you're manning the tower at this time?
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Old May 28, 2006, 12:56 PM
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Nope, I'm at home. But there are times when I don't talk to anybody for a whole hour or two. Hours of boredome seperated by minutes of sheer terror! Or is that "shear"?
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Old May 29, 2006, 01:57 AM
go fly! no crashes!
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Honolulu, HI
Joined Jun 2003
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hahah stay away from the shears! Hours of peace and quiet are great for me. About the only time I can sit down and concentrate on building.

Well, not a great day for putting in AP700 into the Het F-18. It doesnt fit. I'm going to need to dremel off some of the shroud to get it into the former and intake duct. Well, actually did that at the field, but I didnt take off enough and it deformed the shroud a little. So I'm going to hit the high spots and try it again tomorrow.

I'm glad I live in a cement building so the neighbors arent going to be bugged by a dremel at 10PM at night.
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