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Old Jan 01, 2012, 11:12 AM
Registered User
Sandy, UT
Joined Nov 2009
25 Posts
Don,
Thanks for the Depron size info....I'll get some ordered from Grayson....I believe they also have the motor/esc combo I need.
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Old Jan 02, 2012, 11:46 AM
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Dennis Everett's Avatar
United States, CA, Ontario
Joined Mar 2002
7,787 Posts
If you get the bigger sheets from rc foam you can make the wing in one piece , they are a little narrower than the plane so you loose about a inch of wing span , but the 4 ive made all fly fine this size , i hate seaming sheets together .....
No. 4 has rudders and i think its worth the little extra work it takes to put them on , # 3 was 13 oz and # 4 is 13.9 oz , does some pretty quick snap rolls and other weird stuff with them , also helps in high alpha flight ...
I made the one flow by the bigger guy in the video above ...
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Old Jan 02, 2012, 11:49 AM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,665 Posts
Or you can turn the template sideways for the full wing, and cut the nose section separately. Once the nose and wing are joined, the intake sides and fuse pieces provide enough strength to hold everything together.

Pat
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Old Jan 02, 2012, 02:10 PM
beemerdon
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USA, NC, Charlotte
Joined Nov 2009
801 Posts
Quote:
Originally Posted by crxmanpat View Post
Or you can turn the template sideways for the full wing, and cut the nose section separately. Once the nose and wing are joined, the intake sides and fuse pieces provide enough strength to hold everything together.

Pat
That's what I did; my seam is just forward of the wing break and is supported by the 'fuselage'. It looks like I may have added two little pieces to the tips as my ws is 28".

Don
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Old Jan 03, 2012, 01:40 PM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
655 Posts
F-22 Foam

Here are a couple pictures of my F-22 ,1/2 in foam. This is my first scratch built. Plans only from 6mm.
Ordered the power set up yesterday from headsuprc.

Motor - Power Up 400 Zoom
ESC --- HURC 40A ESC
Prop -- EMP 6x4E

Will power up with my 11.1 v 2100 Lipo battery.

What say all of you on my first Build. Will paint them SOME WHAT LIKE THE [BLUE ANGLES].

SARG5
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Old Jan 03, 2012, 04:06 PM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
655 Posts
SARG5 again
On the above Scratch Built planes out of 1/2.
Do you need to bevel the TRAILING EDGE of the control surfaces? Or can you leave them
squared off ?
Yes, I am beveling all of the LEADING EDGES.

Thanks
SARG5
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Old Jan 03, 2012, 04:16 PM
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United States, NY, New York
Joined Dec 2009
508 Posts
anyone try duct fan? should mount it on top or mid of plane?
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Old Jan 03, 2012, 04:48 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,665 Posts
Quote:
Originally Posted by SARG5 View Post
SARG5 again
On the above Scratch Built planes out of 1/2.
Do you need to bevel the TRAILING EDGE of the control surfaces? Or can you leave them
squared off ?
Yes, I am beveling all of the LEADING EDGES.

Thanks
SARG5
You actually don't need to round any edges, but if you do, just do the leading edges and don't worry about the trailing.

Pat
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Old Jan 03, 2012, 04:50 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
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Quote:
Originally Posted by bigtruck169 View Post
anyone try duct fan? should mount it on top or mid of plane?
I know this is a very large thread, but there are several posts about using EDF and where they were mounted. You just need to search the thread.

Pat
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Old Jan 03, 2012, 05:05 PM
Aussie, Aussie, Aussie!
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Australia, NT, Katherine
Joined Apr 2009
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Quote:
Originally Posted by crxmanpat View Post
You actually don't need to round any edges, but if you do, just do the leading edges and don't worry about the trailing.

Pat
Like Pat said, there's no need to make things aerodynamic. Its a flying plank after all and even at scale it's not busting the sound barrier. I have shaped the leading edges because it looks better but the trailing edges (tailerons, ailerons and rudders) are all blunt.
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Old Jan 03, 2012, 06:21 PM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
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I am now wondering if I have made the Aile. too narrow. I made them about 1 1/4. Everupme else looks like the have made theirs about 1 1/2to 1 3/4.
What say you all
SARG5
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Old Jan 03, 2012, 06:52 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
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I say since it flies fine without ailerons at all, leave them be. Some is better than none, even though none is required.

Pat
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Old Jan 04, 2012, 04:19 PM
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Dennis Everett's Avatar
United States, CA, Ontario
Joined Mar 2002
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Pat, didnt you use a scoripion on one of thease jets ? If so , which one ?
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Old Jan 04, 2012, 05:12 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,665 Posts
I did originally, I think it was a 2205-32. But once I found the 2212-6 I never went back to anything else.

EDIT - Yep, here was my oiginal post with my setup. Flew good with this, but flies better with the 2212-6.

http://www.rcgroups.com/forums/showp...&postcount=256

Pat
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