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Rans S-9 Chaos. Peter Miller's new design blog

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bees02/11/2020 20:56:58
155 forum posts

Peter, I am struggling to obtain 1/32 ply for the doublers , can you recommend an alternative .

Geoff S02/11/2020 22:11:27
4025 forum posts
68 photos

I thought 1/32 ply was stocked by SLEC or Balsa Cabin and wasn't part of the supply problem. However, you could opt for using 3mm liteply for the fuselage sides, perhaps?

Geoff

Peter Miller03/11/2020 08:23:21
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11758 forum posts
1416 photos
10 articles

As Geoff has said, SLEC stock it.

I would suggest ordering by phone because you can then ask them to cut the sheet (24" long will do for Chaos) in half lengthwise which will make posting the thin ply much safer and easier .

Trust me that will be appreciated.

I would imagine that Balsa Cabin will also stock t and the same suggestion applies.

bees10/11/2020 19:19:20
155 forum posts

Hi, Iam at the point where i need to order some covering, It will just two colours so iam wondering if one roll of each colour be enough to cover the model, Thank you.

Peter Miller10/11/2020 20:44:08
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11758 forum posts
1416 photos
10 articles

If you are buying Hobbyking covering it will be more than enough.

If you are going to try for some of the last Solarfilm I would say that a couple of metres of each would be fine

bees12/11/2020 14:12:27
155 forum posts

Hi everybody, the build is coming along fine, just acquired some 1/2 inch x 4 prices have shot up but can not do much regarding that but next project probably will be a short kit from sarik.

bees17/11/2020 21:33:11
155 forum posts

Hi, Got to the point of attaching the wings to the fuz with a captive nut and bolt from underneath. The article says to provide a hole under the fus which lets air out but allows you with a long allen key to attach the wing but my thinking is how do you stop the bolt from dropping into the fus. Thank you for any imfo.

Peter Miller18/11/2020 08:22:31
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11758 forum posts
1416 photos
10 articles

Mine is held in by the friction between the wood and the threads.The threads are coarse and the hole is a close but not tight fit.

Crude and simple but It hasn't fallen out so far.

paul morris 119/11/2020 09:46:38
6 forum posts

On my little mis honky tonk another of peters designs i have made the hole in the balsa part above the ply plate just a little bigger for a 1/16 of on inch down and used a rubber o ring over the bolt threads and so far no trouble with the bolt falling out.

Peter Miller19/11/2020 10:32:26
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11758 forum posts
1416 photos
10 articles

I had not thought of that!!!embarrassed

barryt03/12/2020 09:49:12
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103 forum posts
31 photos

Thought I would show you my progress so far and take the opportunity to thank Peter for creating a plan for such an interesting subject. I looked at an S-10 based at a local airfield a couple of years ago. Really liked the windows under the wings. Must have been quite a view from the cockpit.
No problems during the build. I really like the undercarriage design. Luckily I managed to get the angles right without too much muttering. I am now waiting for a spinner so I can finish the nose block profile. I am also waiting for some 500 micron plastic for the canopy. My canopy frames turned out to be quite flimsy so I'm going to try to make them again. Given that there is not much to see in the cockpit, I wonder if it would be worthwhile using opaque black plastic for the canopy and side windows. The canopy frames could then be beefed up without showing. There is time to think about that because there is still lots of tidying up, filling and finishing to do before covering.

Keep well everyone.

20201203_104801.jpg20201203_104823.jpg20201203_105618.jpg

Peter Miller03/12/2020 10:42:04
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11758 forum posts
1416 photos
10 articles

That looks really good.

I just used black film for the windows under the wing.

I feel that that huge canopy would not look so good in solid black. But that is up to you.

I used very small screws to hold it down and, while it is a bit fiddly it isn't too hard, the hardest section is the frnt windscreen panel and even that isn't too bad.

bees03/12/2020 20:36:59
155 forum posts

Hi Barry, Nice build and coming along nicely. I have more or less finished the covering on mine and more or less ready to tackle the canopy , think i will go along with the plastic route as i have made the three frames ready to install.

Peter Miller03/12/2020 20:50:56
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11758 forum posts
1416 photos
10 articles

Bees

Actually you would be bette roff with four frames. One for the windscreen, two for the centre poortion ans sone for the rear part

barryt04/12/2020 05:49:12
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103 forum posts
31 photos

Thanks again Peter & Bees.

I'm trying the frames again with some very thin hardwood veneer. Should be a lot stronger than my first attempt.

Four frames it is !

canopy.jpg

Peter Miller04/12/2020 08:26:05
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11758 forum posts
1416 photos
10 articles

That is a good picture. Never found that one!!

I use 1.32" ply, Four laminations with the grain along the long dimensiopn. That is the outer layers of grain pf course

barryt04/12/2020 11:35:22
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103 forum posts
31 photos

1/32 ply is pretty hard to come by in my neck of the woods, so I'll have to get creative!

I hope my model will look at bit like this New Zealand example. No wheel spats, 3 blade prop or wing turbulators though, and I'm going to have to track down that Rans S9 font for the tail. I like the exhaust setup. Rotax 582.

rans s9.jpg

Peter Miller04/12/2020 11:50:15
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11758 forum posts
1416 photos
10 articles

Interesting that the exhaust on yours is the opposite side to mine.

Mine is owned by a chap living in New Zealand but his aircraft is based the Thailand.

You could possibly bend 1/16" ply with a bit of heat or steam.

bees04/12/2020 16:42:16
155 forum posts

Wished i had seen that picture before hand, ha well never mind. I envy people that can finish a model like that, i love building from scratch and can make a nice job of it but i hate finishing off regarding covering the model and insignia. I make a reasonable job of covering but if it is not perfect it really bugs me. Must try and listen to the wife more because she says what difference does it make as long has it flies, they don't understand ha,ha. Best regards Glen

Peter Miller04/12/2020 18:16:12
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11758 forum posts
1416 photos
10 articles

Bees. I love to do fancy colour schemes but my finishes don't stand up to close inspection.

Any club member will tell you my most common remark. "You can't see it at 50 feet!"

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