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Old Dec 12, 2002, 08:41 PM
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You'd be suprised at the strength once the covering is added but Hector did have an excellent idea of adding a 1/8" stringer "left-over" to the trailing edge of them.

John
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Old Dec 12, 2002, 09:22 PM
I fly Army UAVs!
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West Saint Paul, MN
Joined Aug 2002
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Foam, I believe Pval said something about the tailerons earlier in the thread and adding strip of lite ply to the trailing edge and to where the servo connects to the taileron.

Harry
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Old Dec 12, 2002, 09:35 PM
Dale Lindsay
Mt Airy, Maryland, United States
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I just can't wait to see someone's plane fly!
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Old Dec 12, 2002, 09:44 PM
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I think Phil has his to that point and should be flying very soon!


John
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Old Dec 12, 2002, 09:48 PM
Dale Lindsay
Mt Airy, Maryland, United States
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That's cool! I am sort of in the same boat as him. Ice hit us the other day and we're still trying to get power to STAY on and the roads to thaw out!

Looking forward to the vid!
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Old Dec 13, 2002, 10:46 PM
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Mississippi,USA
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Progress Pictures

Hi,
Here is a picture of the trailing edge. I added sheet-rock tape to it before the paint. This way the trailing edge will be a bit stronger. Also, I painted the foam with water base paint. It works great and is quick.
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Old Dec 13, 2002, 10:50 PM
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Mississippi,USA
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Picture of the wings painted

Here is a picture of the painted winds:
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Old Dec 13, 2002, 10:55 PM
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Los Angeles
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Wow that paint job came out really well!! The stuff I use tends to mold and form to much to any informities in foam.


John
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Old Dec 13, 2002, 10:55 PM
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Mississippi,USA
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Picture of the F-4 tail cone finish

Tail cone finish and covered
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Old Dec 13, 2002, 11:02 PM
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Mississippi,USA
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F-4 almost ready to fly picture

Here is a picture of the F-4 almost ready to fly
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Old Dec 13, 2002, 11:08 PM
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First Rate Covering job!!! Looks outstanding!

John
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Old Dec 13, 2002, 11:11 PM
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Mississippi,USA
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F-4 Ready to fly!!! finally

Here is the picture of the F-4 ready to fly!! The plane is hanging from a lamp...
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Old Dec 13, 2002, 11:11 PM
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Charlotte, NC
Joined Dec 2002
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agreed!

I was thinking the same thing!

I finished covering my bird last night and there is no way I am posting pics! LoL. Sure its my first covering job, but I'm still not making it public Please tell me the normal thicker stuff is easier to work with! I used the RA Micro stuff suggested in the plans and after 5hrs I was about to trash the whole plane till I discovered that my iron wasn't hot enough for proper shrinkage.

Pilatus, if I ship mine to you will you cover it for me!
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Old Dec 13, 2002, 11:14 PM
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Los Angeles
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I recieved this e-mail today from another builder:

I've got it [CG] at 12 3/4" from the back of F1. And that's with the wing placed so that the LE lines up with the LE you have on your plans.

I also double checked it using the method on this page:

http://www.nsrca.org/technical/tip_tricks/mac_cg.htm

and it came out to the same spot which is a nice confirmation.



I have recieved many e-mails reagarding the placement of the CG. Some have it farther back but most have it farther forward then it shows on the plans. I think for most you may want to move the CG up more as this e-mail has suggested. If you find the CG to be far forward at least you have the option to land safely but if it is too far back given your setup then you will do a back flip and inevitably crash. Anyways this is just my two cents but better safe then sorry!

John
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Last edited by drbird; Dec 13, 2002 at 11:18 PM.
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Old Dec 13, 2002, 11:17 PM
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Mississippi,USA
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53 Posts
F-4 weight and battery location

Here is a picture showing the location of the battery. I am using a NiCad 6 cells 550 mah. for the first fly to keep the weight down.

The final weight of the plane is 11 7/8 oz. with battery and without canopy.
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