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Old Oct 20, 2007, 01:03 AM
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Pine, Colorado
Joined Oct 2003
239 Posts
Ceeray-
Do you have a picture of the motor fan you built up? How was it constructed?
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Old Oct 21, 2007, 02:27 PM
Registered User
Finland
Joined Jul 2004
675 Posts
Take 1mm plastic, cut 72mm diameter circle. Then make center hole.
Measure out 12 blades with little space between them. Makes 30 degrees between each blade. Measure blade length with your spinner--->dont make them too long. Cut the blade outline. Make little cut in the base of the blade so you are able to twist it a bit.

There you go! (hope you understood anything..)
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Old Oct 22, 2007, 09:33 AM
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Pine, Colorado
Joined Oct 2003
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Thanks.
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Old Oct 22, 2007, 10:47 AM
Callsign: CornDog
HawkLover's Avatar
Milpitas, CA
Joined May 2003
5,364 Posts
Thanks for the tip Ceeray!

I've been working on my cowling and am getting a little discouraged. The plastic is so thin, and even with .75 cloth and to coats of poly, it still doesn't feel very strong. I have 2 cracks from the first 6 or so flights (she had to earn her paint job!). I'd like to stiffen it up a bit more and was wondering if anyone had some suggestions?

One thing I've already done is cut a ring out of FFF that will keep the front part of the cowl from squishing in. My cowl already had dents in it from shipping, so this ring helps pop some of them out.

I was also thinking of taking 1/32 fly and warping it so I can glue it to the inside of the cowl on the bottom. I'm not thinking of a big piece, maybe 3 inches long that will fit front to back inside the cowl.

Anyway, any thoughts would be appriciated.
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Old Oct 22, 2007, 03:53 PM
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Finland
Joined Jul 2004
675 Posts
I ordered two spare cowls and they seemed to be much sturdier than the first one. Of course it helps that I shortened the cowl for 3 cm.
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Old Oct 26, 2007, 03:00 PM
Fly by Night
jteplane's Avatar
Phoenix, AZ
Joined Jan 2007
870 Posts
Cowl

Quote:
Originally Posted by Ceeray
I ordered two spare cowls and they seemed to be much sturdier than the first one. Of course it helps that I shortened the cowl for 3 cm.
Ceeray, where did you order your cowls from?
I tried calliberhobby from someone elses recommendation, but they were out.
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Old Oct 28, 2007, 11:47 AM
Hi Wattage Electrics - Cool
Rad Racer's Avatar
Jordan, Minnesota
Joined Jan 2004
617 Posts
Vario prop?

Has anyone tried a vario prop yet? If so, what hub\blade did you use?

I am thinking to use the 8C 3-blade hub and 9.4" blades.....all driven by a Scorpion 3014-18 motor. Sound like the right combo?
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Old Oct 28, 2007, 11:50 AM
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stacker's Avatar
Salt Lake City Utah
Joined Mar 2004
3,289 Posts
I gave up on my cowl. Converted to a D9. The one I got was so thin I think it started melting in my hand. Other then the cowl, the kit was great. Lack of scale spinner was a big issue that took a lot of my time to fix.

Cheers--Stacker
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Old Oct 28, 2007, 02:09 PM
The Revegetator
Chris F's Avatar
Melbourne Australia
Joined Jun 2006
2,037 Posts
Stacker, she's a beauty! I agree with you on the cowl. I'm making a replacement out of balsa for mine.
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Old Oct 28, 2007, 07:11 PM
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stacker's Avatar
Salt Lake City Utah
Joined Mar 2004
3,289 Posts
Chris,
Thanks, Other then the cowl and spinner I liked the kit.

Cheers--Stacker
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Old Oct 31, 2007, 12:29 PM
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Finland
Joined Jul 2004
675 Posts
Stacker, your conversion is really good looking! Do you have retracts or are the undercarriage stationary?

I put retracts on mine...

I think I have to redo markings, theyre 1" too much left...
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Old Oct 31, 2007, 12:54 PM
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Salt Lake City Utah
Joined Mar 2004
3,289 Posts
Ceeray,
Great looking 190! I like the schem. that you picked. Excellent job, and the shorter cowl looks much better.

Yes, I installed a pair of GreatPlanes size.10 retracts. I thought about using the Alfa units esp. for weight savings and also they offer either 90 or 85 Deg. retraction. Ended up using the GP ones which req. larger servo also. I did put the Alfa's in a 262 for the mains with good results.

Cheers--Stacker
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Old Oct 31, 2007, 01:09 PM
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Finland
Joined Jul 2004
675 Posts
I also got GP .10 !

How did you attack covers into the struts? I am thinking about how to do it but it still in thinking stage...
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Old Oct 31, 2007, 01:55 PM
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Salt Lake City Utah
Joined Mar 2004
3,289 Posts
Ceeray,
I thought about different ways and then went simple and used clear silicon. I put wing upside down with landing gear retracted, then applied small amount along gear legs and positioned doors in place with a weight holding them in position. Must be careful not to get any on foam wing though. I'm prob. the only on out there with heat treated beryllium gear doors, but thin alum. or ply also works well.

Here are several other views of conversion if you missed the thread. I must also change that tail wheel configuration soon.

Cheers--Stacker
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Old Nov 01, 2007, 02:37 AM
The Revegetator
Chris F's Avatar
Melbourne Australia
Joined Jun 2006
2,037 Posts
Quote:
Originally Posted by stacker
Ceeray,
I must also change that tail wheel configuration soon.

Cheers--Stacker
Hi Stacker,

Here is my tail wheel mod. It isn't steerable anymore but the stock tail wheel just doesn't do it for me. I plan to get some more done on mine this weekend . Nice B-58!
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