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Old Jul 07, 2008, 02:43 AM
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slumberjer's Avatar
Changloon, Kedah, Malaysia
Joined Dec 2006
123 Posts
This is my F22 Cororaptor. Instead of depron..I choose coroplast as my building material. It's twice the weight from depron F22. Mine AUW is ~20oz.

Power plant setup APEX 2500kv with 5' prop, ESC 30A, Lipo 2200 3s1p 20C lipo. tested on the ground with just half throttle it can hover.

Will maiden this friday.

Is it enough with just elevon setup for this F22?

More details here
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Old Jul 07, 2008, 03:19 AM
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tomhe's Avatar
Linköping, Sweden
Joined Jan 2007
260 Posts
Quote:
Originally Posted by slumberjer
Is it enough with just elevon setup for this F22?
Opinions differ. Shadegrown's model with only tailerons flies fine:

Profile F-22 with simple thrust vectoring (4 min 50 sec)
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Old Jul 09, 2008, 04:30 AM
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Tampere, Finland
Joined Sep 2007
74 Posts
Tailerons only -setup provides good control even in low speeds, but if you want faster roll rate, you may want to add the ailerons as well. Some say that rudders help in high alpha maneuvering, but I have no problems controlling the plane in high AOA flight with tailerons only. Inverted flight high alpha is also possible!
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Old Jul 09, 2008, 09:43 AM
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ihor14448's Avatar
Strongsville, OH
Joined May 2007
2,415 Posts
yesterday i went to build this plane, and i was suprised to see that the plans were deleted no plane for me
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Old Jul 09, 2008, 10:15 AM
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birdofplay's Avatar
United States, IN, Indianapolis
Joined Dec 2005
8,484 Posts
You just have to dig a little deeper into tomhe' pages.

http://rc.tomhe.net/local--files/f-22/f-22-r2-print.pdf
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Old Jul 09, 2008, 11:11 AM
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ihor14448's Avatar
Strongsville, OH
Joined May 2007
2,415 Posts
Quote:
Originally Posted by birdofplay
You just have to dig a little deeper into tomhe' pages.

http://rc.tomhe.net/local--files/f-22/f-22-r2-print.pdf
thanks!
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Old Jul 09, 2008, 11:50 AM
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tomhe's Avatar
Linköping, Sweden
Joined Jan 2007
260 Posts
Quote:
Originally Posted by birdofplay
You just have to dig a little deeper into tomhe' pages.

http://rc.tomhe.net/local--files/f-22/f-22-r2-print.pdf
That's correct. There is a link from post #1 to the F-22 page on my site, where plans in different formats can be downloaded.
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Old Jul 09, 2008, 12:00 PM
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ihor14448's Avatar
Strongsville, OH
Joined May 2007
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oh, i remember you had PDF attachments under the pics, sorry, my bad, i thought you removed them because companies are selling those kits
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Old Jul 09, 2008, 12:36 PM
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tomhe's Avatar
Linköping, Sweden
Joined Jan 2007
260 Posts
Quote:
Originally Posted by ihor14448
oh, i remember you had PDF attachments under the pics, sorry, my bad, i thought you removed them because companies are selling those kits
No, I just moved them to my site.
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Old Jul 11, 2008, 02:55 PM
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C. George's Avatar
Anchorage AK
Joined Jun 2008
74 Posts
Thanks tomhe

I just maidened my plane for the first time! I put in a little up trim on lauch so I would not have to worry about the ground right off and the plane lifted into a very slow harrier and hung there until I got all settled and started trimming it out. A fella stopped his pickup and walked up to me while I was getting this bird trimmed and just started talking a mile a minute. A bit distracting but managed to talk and fly at the same time.

The plane looks great in the air and does things just like the real bird. Pull into high alpha and float around. Then just drop the nose and she starts accerllerating on her own. My build is very heavy (15.6 oz AUW) as I used hot glue for eveything including the spar. Only issue was that top speed was dissapointing. I went home and changed the 25 amp Speed Controler to the 30 amp that came with the Grayson Parkjet combo. Second flight she had very good vertical performance. As this is my very first flat foam build I did not know what to expect. I am very happy. Thanks Tomhe!!!
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Old Jul 11, 2008, 03:46 PM
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tomhe's Avatar
Linköping, Sweden
Joined Jan 2007
260 Posts
Quote:
Originally Posted by C. George
As this is my very first flat foam build I did not know what to expect. I am very happy. Thanks Tomhe!!!
You're welcome. Now you have to show us pictures of your bird...
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Old Jul 12, 2008, 05:11 PM
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RacerX208's Avatar
Joined Apr 2004
1,353 Posts
I know this may have been mentioned some where before, but what is actually supposed to be the approximate angle, from the wing to the rudder? I have read the build doc about just "following the angle of the intakes" but since I've played with the tabs and have trimmed them a bit, I just want to make sure I've got them set up right. Using a protractor, and lining mine up with the intakes, the angle right now comes out to about 70 degrees....thanks in advance....
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Old Jul 12, 2008, 07:03 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
17,119 Posts
I've never measured mine. I just use the TLAR method.

Pat
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Old Jul 13, 2008, 01:18 AM
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tomhe's Avatar
Linköping, Sweden
Joined Jan 2007
260 Posts
Quote:
Originally Posted by RacerX208
I know this may have been mentioned some where before, but what is actually supposed to be the approximate angle, from the wing to the rudder?
I haven't measured the angle, but you can measure from this picture.
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Old Jul 13, 2008, 09:58 AM
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birdofplay's Avatar
United States, IN, Indianapolis
Joined Dec 2005
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Used CAD to measure that angle ...
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