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Old Sep 03, 2003, 07:01 AM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
DC-9 EDF-50 that ROCKS!

Dimensions:
47" Long
38" Wingspan
GWS EDF 50BH (11.1V motor w/ 5 bladed fan)*2 = 7.39oz of thrust
10A ESC
1200mah 11.1V Lipo battery
AUW - 10.45 oz's. Amazing!
>23min flight time



5mm thick styroboard for the inside donuts, 1mm foam skin.


http://www1.harenet.ne.jp/~ueno-km/index.html

Check it out (4 pages). What a fantastic building method this guy
has. It's wonderful. I'm going to try several planes this way,
using the new higher powered EDF-50BH with 5 blade fans.

Dude, you rock!

Yasuhiro Ueno
Okayama city, Japan
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Last edited by Hawker; Sep 21, 2005 at 10:01 PM.
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Old Sep 03, 2003, 07:07 AM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
I just got off a 12 hour shift, but darn it this DC-9 of his has got
me totally excited about building my EDF jets using this same
construction methods. It looks very simple to do and yet flys
extremely well due to lightweight building.

I hope the rest of you airliner/military cargo nuts can see the
potential this has for all of us. Totally cool. In fact this method of
construction would be awesome for ANY EDF-50-ish design.

Here's the REAL kicker! 23 minute flight times using Kokams!
Wow! Plus he estimates 20% charge left after that. Amazing.

http://www.edfmodel.com/modelphotos.htm
My AN-225 (on this page) if built this same way would be
incredible! My way was much too heavy. Must make a version 2
eventually but I think a C-5, C-17 will be first. Since I'm around
them everyday.
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Last edited by Hawker; Sep 11, 2003 at 10:17 PM.
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Old Sep 03, 2003, 07:56 AM
Registered User
Carter's Avatar
Joined Feb 2001
316 Posts
Wow! This guy is on to something.
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Old Sep 03, 2003, 09:08 AM
Baboon McGoon
ClipperBill's Avatar
Saint Paul, Minnesota, United States
Joined Jun 2002
675 Posts
Wow!!!! Absolutely phenomenal. This guy really is on to something. Thanks for sharing Hawker.
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Old Sep 03, 2003, 09:12 AM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
The most amazing part of this to me is the 1mm thick foam skin!
That's like, nothing, zero weight! Perfect for small EDFs.

It really gets your imagination going doesn't it? Thinking of the
countless possibilites. That DC-9 looks so cool as it is and it's
not even painted yet. Too cool.
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Last edited by Hawker; Sep 11, 2003 at 10:17 PM.
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Old Sep 03, 2003, 11:20 AM
Ductedfann's Avatar
mid west
Joined Jan 2002
668 Posts
That is a good way to form zepron, to make an edf 50 jets.

I have been using foam skeletons similar, but not the same, for my low weight fiberglass reinforcement trials.
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Old Sep 03, 2003, 12:17 PM
Registered User
dallas,tx
Joined Feb 2002
731 Posts
hawker,

looks great


what glue are you using to glue the foam together?

i use probond, but I hate waiting for it to dry.

thanks

ryan d.
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Old Sep 03, 2003, 04:28 PM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
I'm not sure about the best glue to use. I know 3M is good for
sandwiching 2- 3mm pieces together, but for the rest, not sure.

Here's what I just ordered through DepronUSA. Should make a
good 4 airplanes easily. I'm planning on 35-40" wingspans with
lengths of approx 40 to 45 inches.

We have received your order for the following:
================================================== ======================
Item # Description QTY Amount
------------------------------------------------------------------------
D61319W 6mm White Depron "6mm x 13" 8 24.00
x 19" White
D61524G 6mm Grey Depron "6mm x 15" x 8 28.00
24" Grey"
D21524W 2mm White Depron "2mm x 15" 10 20.00
x 24" Whit
D22430W 2mm White Depron "2mm x 24" 10 40.00
x 30" Whit
D63048GOS Full Sheets--Oversize Shipme 2 28.00
nts "6mm x 30 x 48
------------------------------------------------------------------------
Sub Total 140.00
Tax 0.00
Shipping & Handling 0.00
ORDER TOTAL 140.00

I know the shipping will probably be pretty high due to the 2
oversize pieces, but those will be the outline/frame of the
fuselage. I'd rather keep it one complete piece than smaller ones
glued together. So picture that as a view looking down from the
top, the frame. Then the doughnut/bulkheads will be cut from
the smaller 6 mm pieces. I'm going to mix in gray here and there
in the frame just to make it easier to see certain areas for servo
mounting, etc.

When I do a DC-9 or B717, I think I may go a little smaller than
he did so the fans won't have so much model to push around.
For 2 EDF-50's his plane is big! Pretty impressive. I'm surprised
it does so well, but obviously it's due to the 11.5 oz weight.
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Last edited by Hawker; Sep 03, 2003 at 04:32 PM.
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Old Sep 03, 2003, 04:33 PM
Baboon McGoon
ClipperBill's Avatar
Saint Paul, Minnesota, United States
Joined Jun 2002
675 Posts
Am curious about the more powerful EDF-50BH fans mentioned in the article used as an upgrade to the EDF-50s. Is that an Asian variant of the EDF-55 soon to be released by GWS?
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Old Sep 03, 2003, 04:35 PM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
I'm not sure, but I did see ONE for sale on ebay today.
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Old Sep 03, 2003, 07:25 PM
Nickel what?
Phreakish's Avatar
Prescott, Arizona, United States
Joined Jan 2003
2,365 Posts
the edf-55 is a whole new animal... its 55mm diameter with a bigger motor and new fan and shroud... will be a lot more powerful than the 50...
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Old Sep 03, 2003, 07:32 PM
Registered User
Joined May 2003
235 Posts
Does that Takeoff from the ground?? You donīt need to throw it?? This is amazing very very nice stuff this guy has done--
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Old Sep 03, 2003, 08:08 PM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
Yeah, by the time I'm back from my trip hopefully that EDF-55 and
other new fans will be available. Looking forward to it!

Yes, I do believe this is ROG. He say's it has as much climb power
as any twin speed 400 (now that's impressive!). Again, the 11.5
oz weight being the huge contributor here.
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Last edited by Hawker; Sep 11, 2003 at 10:17 PM.
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Old Sep 03, 2003, 08:18 PM
Fly Brushless!
Hawker's Avatar
Las Vegas
Joined Aug 2002
3,136 Posts
To be honest with everyone, this type of progress with a small EDF airliner is what I've been waiting for. Now I'm getting ready to get all the supplies and run with this! Who knows, early next year if my plans work out I may end up kitting something.
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Last edited by Hawker; Sep 03, 2003 at 08:23 PM.
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Old Sep 03, 2003, 09:08 PM
Live to ride... and fly!
Tres Wright's Avatar
Forney, TX
Joined Mar 2002
15,165 Posts
Wow, that is amazing! 11.4 ounces on a 38" wingspan, impressive. He doesn't say what fans he replaced the EDF-50's with, but they're running on 3 cells so they must be more robust motors than the 50's. Neat construction technique!
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