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Repair of a Hanger 9 P-51 Mustang.

Bought from a Swap Meet and project.

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Paul Marsh01/09/2019 18:09:58
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3703 forum posts
1050 photos

dscf5095.jpgA few weeks ago, I saw this for sale at Winterton Model Show. Was damaged when the legs got ripped out. Easy fix, the fuselage is perfect - no damage, and all the damage is on the underside of the wings - a few puncture holes and need to remake the hardwood u/c support bearers. No problem. Just get the loose bits glued in and a few repairs for now.

Starting to repair a H9 P-51 Mustang I bought for £25 a few weeks ago. Is brand new, the first flight ended up with the u/c being ripped off and the person selling it. It was missing the blue spinner, but a few years ago bought a Cowl, Spinner and top deck canopy for £2. So in the end, it is a viable project and one of my favourite aircraft.

Will keep doing a repair/flight blog.

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Paul Marsh01/09/2019 18:19:18
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3703 forum posts
1050 photos

Where it started at. Looks ok from here...

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Richard Wills 202/09/2019 23:05:52
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176 forum posts
7 photos

Great model once sorted out, really do fly well. I have repaired 2 of these with exactly the same damage on the maiden, seems the blocks were glued in on both with what looks like hot glue. I would check the spars as much as you can, on both of them the shear webs had gone just outboard of the retract bay and the lower spar was cracked

Paul Marsh03/09/2019 18:03:40
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3703 forum posts
1050 photos

You're right, that's what I noticed last night. the u/c blocks are only held on at two ribs, and ripped part of the spar out. Now a new sub spar added and butressed over it, and another false spar on the other side of the capping strips. Tonight add new hardwood blocks, a new false l/e rib and more triangle stock to take the high stress areas, with some glass fiber cloth to spread the load.

Where its at now:

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Edited By Paul Marsh on 03/09/2019 18:06:04

Mike T03/09/2019 18:33:42
417 forum posts
28 photos

Is the u/c electric or that mechanical monstrosity with wire legs?

I replaced the gear in my H9 P-47 with the heavy-duty HK electrics and a couple of their P-47 bespoke oleos. They work extremely well, with a scale-like 6 second transit time.

A clubmate has the older H9 P-51 (in "Miss America" colours) and he's done the same thing.

Paul Marsh03/09/2019 18:41:25
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3703 forum posts
1050 photos

Will be electric and scale oleos, which I've got a stock of different sizes.

Paul Marsh16/09/2019 21:05:42
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3703 forum posts
1050 photos

Is it worth me continuing the thread? If ok, then will keep posting the process. Not done much, just put the new blocks and u/c mains in, ready for fitting out.

If no interest,then will leave the thread. let me know if anyone one wants to see.

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Edited By Paul Marsh on 16/09/2019 21:07:34

john stones 116/09/2019 21:15:48
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10577 forum posts
1480 photos

I read it Paul, no comment coz you know what you're doing, never met a Mustang that don't fly well. yes

Martian16/09/2019 21:22:50
2217 forum posts
1091 photos

Keep going Paul always interested to see a fellow balsa basher at work 😎

Mark Elen16/09/2019 21:24:24
381 forum posts
684 photos

Yes, please continue Paul. I’m interested to see the work involved

Cheers

Mark

Paul Marsh16/09/2019 21:34:07
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3703 forum posts
1050 photos

Ok,will do. As for engine, I have a brand new RCGF 20cc petrol, a OS 120FS pump, 2 off and a few SC 120 four strokes, Which one? Probably go for the 4 stroke, and the OS pumper at that. Petrol is ok, but still sounds like a strimmer!

john stones 116/09/2019 21:38:00
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10577 forum posts
1480 photos

O.S 120, thing of beauty. wink

Bob Cotsford16/09/2019 21:49:27
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7963 forum posts
439 photos

+1 watching Paul. It's got to be the Surpass pumper, mine were absolute gems especially the mkIII. I can't remember an artf where I've not needed to reinforce the retract mounts.

Rich too17/09/2019 06:38:53
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3002 forum posts
1061 photos

Sub’d yes

i’m hoping to be inspired to sort out the u/c on my Thunderbolt.

Chris Walby17/09/2019 07:07:23
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980 forum posts
230 photos

Paul,

Please keep posting as this sort of thing is always helpful to others that don't nail that landing every time...or hardly ever!

Denis Watkins17/09/2019 08:00:21
3875 forum posts
58 photos

576 views Paul

That is totally viable, keep going

Chris Freeman 317/09/2019 08:23:14
258 forum posts
325 photos

Nice project Paul, I see that you are like me and have a hard time passing a good deal! Projects like this are very rewarding in my opinion when been able to give an airframe a second chance and often as not as much work as they look. I look foward to see the completion of this project. Sorry I did not comment earlier as it is nice to get some replies to time taken to post.

ASH.17/09/2019 16:23:41
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304 forum posts

Nice work Paul. It's always interesting to see how these kinds of repairs are done.

It is a handsome model.

Mike T, which H/D HK electrics did you have success with?

Richard Wills 217/09/2019 20:50:15
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176 forum posts
7 photos

I have the OS 120 SIII on mine with a 15x8 prop. Perfect, balances without any lead as well.

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