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-   -   Mike McConville’s desire build (https://www.rcuniverse.com/forum/classic-rc-pattern-flying-379/11679685-mike-mcconville%92s-desire-build.html)

ehsanmorshedi 06-14-2020 09:03 PM

Mike McConville’s desire build
 
Hi every body
Desire, is my other have to build planes, Supra star project made me warmed up and now it’s time to start a new project.

ehsanmorshedi 06-14-2020 10:04 PM

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ehsanmorshedi 06-14-2020 10:32 PM

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This image shows the exact dihedral as the plan
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ehsanmorshedi 06-14-2020 10:41 PM

I will modify Mike’s design a little
in his design pipe goes inside the fuse and header occupies tank room so he had to bring tank back into the canopy therefore a pumped engine is necessary.
on the other hand cooling the pipe is a concerning issue.

I canged the pipe position from inside the fuse into a Conventional half tunnel belly, this way header will not occupy the tank room back to the firewall, so I will move the tank forward and will run the engine without pump.
cooling of the pipe will be much better and there will be more room inside the fuse for servos.

the other modification is a take apart wing and also fixed carbon fiber landing gears on fuselage instead of retracts.

Ehsan

ehsanmorshedi 06-14-2020 10:53 PM

https://cimg0.ibsrv.net/gimg/www.rcu...9915a1e83c.png
This is Mike’s original design Note the header occupying tank room and the pipe occupying servos room without enough cooling and the tank position in canopy which needs a pump to feed engine. Of course Bringing the tank forward will produce some CG problems during flight. Ehsan

ehsanmorshedi 06-15-2020 07:00 AM

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Not sure if it really helps in reducing weight, but I had enough time, so why not to do that?
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ceccherini.v 06-15-2020 10:51 PM

Mike McConville’s desire build
 
Amazing! It's a pleasure to see you work
Valerio

ehsanmorshedi 06-16-2020 12:40 PM

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More improvements ...

ehsanmorshedi 06-16-2020 08:47 PM

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Moulding wet balsa
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flywilly 06-17-2020 03:21 PM

Another nice build. I scratch built one a few years ago and had the luxury of the glass fuselage top to speed up the build. Great flying airplane!
-Will

ehsanmorshedi 06-17-2020 04:34 PM


Originally Posted by flywilly (Post 12612233)
Another nice build. I scratch built one a few years ago and had the luxury of the glass fuselage top to speed up the build. Great flying airplane!
-Will

Hi Will, please share some pictures of your plane if you still have it.
What was flying weight and also the power plant?
mine will be powered up with a Super tiger rear exhaust, my estimation of weight is about 3200-3300 grams.

regards,
Ehsan

ehsanmorshedi 06-17-2020 04:49 PM

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I always use 100 gram glass cloth and some epoxy to reinforce sides and joints, it’s much lighter and easier than plywood doubler.
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Making the firewall by laminating three pieces of 5 ply 2.5 mm plywood.
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Using some CA to tag motor mount on firewall, then drilling screw holes.
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flywilly 06-24-2020 04:42 AM

Hi Ehsan,
Flying weight was around 7.5 pounds powered with an OS Hanno Special. Also fixed gear. I did modify the wings (and maybe the stab) by reducing the tip chord and the tip thickness. I will try to find a photo.
Your build is progressing very nicely. Great craftsmanship.
-Will

dhal22 06-28-2020 04:57 PM

Superb work!

chuck4816s 07-02-2020 07:59 AM

Very nice! I have a short kit with the fiberglass deck that I need to build.

CXXXV 07-26-2020 06:01 AM

Thought you might enjoy these. This is from the NATS in 1990 when I was competing with these guys. M. Klein was Mconville's buddy. As I recall the plane had not been kitted yet.

Note in the second pic Chip Hyde photobombing this.

https://cimg7.ibsrv.net/gimg/www.rcu...8a70e2f7b2.jpg

ehsanmorshedi 05-19-2021 03:54 AM

H
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Hi all here are some new updates

computermonkey 05-19-2021 06:49 PM

Nice work!

ehsanmorshedi 05-20-2021 08:04 AM

https://cimg2.ibsrv.net/gimg/www.rcu...d3113a532.jpeg

ehsanmorshedi 05-20-2021 08:08 AM

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Some epoxy and micro baloons

dhal22 05-21-2021 03:57 AM

Very, very nice work.

ehsanmorshedi 07-03-2022 12:01 PM

Some new updates


https://cimg2.ibsrv.net/gimg/www.rcu...369706a13.jpeg
I cut myself with cutter blade terribly bad after taking this photo Therefore the project stopped for a few months
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ehsanmorshedi 07-03-2022 12:11 PM

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ehsanmorshedi 07-03-2022 12:13 PM

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ehsanmorshedi 07-03-2022 12:22 PM

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Theses photos are taken prior to the test flight . It flew really well. It weighs 3450 gr without fuel. Powered up with Super Tiger 61 serie X rear exhaust and Novarossi header and pipe.


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