Cliff Charlesworth Olympia build in Bishop, CA.

Let us all watch your new project progress.
Greg Smith
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Joined: 26 Jan 2016, 00:20

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 05 Aug 2018, 01:04

I finally have a working spoiler! Now I understand the intricacies, I've decided to go ahead and make the second one for the right wing while the details of proper operation are clear. Still, the most important aspect of the whole frustrating experience has been what I've had to learn, for the nth time, about the state of mind with which to approach my building. Having said that, I could have built several (2?) common-or-garden kits in the time it has taken to make one spoiler. now I have to fit the assembly into the wing. I have put a strong servo in to operate it, which shouldn't really be necessary, but I had a few lying around. I've begun making the second one, and measuring my distances to the fraction of a millimeter achievable by an Optivisor-assisted eye and my ruler... Just ordered a little benchtop mini circular saw from Harbor Freight 'cause I hated cutting all those tiny pieces of brass tube. I hope my new photo method works: take the pic on the iphone, then send it to myself at my gmail account (only on the workshop computer) drag it to the desktop, then perhaps drag it to the message.
IMG_0505.jpg
unnamed.jpg

Greg Smith
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Joined: 26 Jan 2016, 00:20

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 05 Aug 2018, 01:17

IMG_0507.jpg
The spoiler servo.

Greg Smith
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Joined: 26 Jan 2016, 00:20

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 29 Sep 2018, 20:10

I'm having second thoughts about covering. Does anyone know if Oratex is a good match for Solartex? (probably natural or antique). Where might be the best place to order a sample in the UK? Thanks, guys.

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Peter Balcombe
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Location: Clevedon, North Somerset, U.K.

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Peter Balcombe » 29 Sep 2018, 20:29

Greg,
No idea what Oratex is like, although it seems to have been used on full size aircraft, so should be good stuff.
I see that both Steve Webb and the Sussex Model Centre seem to stock it.
Approx. £25 per 2m roll, so about 50% dearer than Solartex.

Greg Smith
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Joined: 26 Jan 2016, 00:20

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 30 Sep 2018, 21:37

Because I have already covered the tailplane and fin with Solartex, I have to find out if it's a match and if it has an adhesive already on it. I bought some Stits light over here, but I have no confidence that I can use it well on a first go. Solartex was sooo easy to use. I'll try Sussex model centre. Thanks, Peter. Has no-one used Oratex yet? Should I post in a different section?

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Cliff Evans
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Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Cliff Evans » 30 Sep 2018, 21:43

Oratex is every bit as good as Solatex. More expensive but both are as good as one another.

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Peter Balcombe
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Location: Clevedon, North Somerset, U.K.

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Peter Balcombe » 02 Oct 2018, 16:35

Greg,
Just spotted that Airtek hobbies (www.airtekhobbies.com) advertise Oratex at £19.95 per 2m roll, which is a lot cheaper than Sussex Model Centre.

Greg Smith
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Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 22 May 2019, 22:21

I finished the port wing! A long hiatus, because I just wasn't happy with the work I had done, and, frankly, didn't want to go into the workshop to confront my inadequacies. I have long thought about writing a post about the psychology of tackling a project like this, but what always came to mind was the thought that I might be the only one in the place who thinks he's Napoleon... Nevertheless, I was encouraged by another member's post which indicated that he had spent a long time on bringing the wing structure up to level ready for covering, and managed to come to terms with what I had already done. Because I'd opted for pin hinges on the aileron, I also realised that I would have to fit the covered aileron in position before covering the main wing (or at least, leave the top or bottom uncovered, then fit the aileron, to have access to the hinges, then cover the remaining side). I wasn't happy about that. So what I tend to do is to think ahead to some imaginary snag, not necessarily see a way round it, get fed up and go and practice guitar instead! Thus the long building time. I also divert to easier projects, like refurbishing a big P-51 sloper which has been sitting around for many years.
Anyway, I put some good music on the stereo - soothing classical is best - and got down to all the exact measuring, cutting and sanding required and found, as usual, that the difficulty was not as great as I'd imagined. Because of the price of thin plywood over here, I used 1/16" balsa for much of the wing sheeting, so that caused more work too, having to match it to the plywood rib capping strips and the ply inner wing sheeting.
I feel better prepared for building the second wing, even though the early stages of the first are far enough away for me to be puzzled about some things. I am being very careful about all my measurements now, to save correction time later, and already have the spoiler and joiner box done, having made them as I made the first wing, so that should help things along.
Oh, but I look at my latest RCM&E and think how much I'd like to build something else, with a whole different set of challenges. And I shudder to contemplate flying this craft for the first time: perhaps I'll just hang it up in the living room, since I don't have a nice grass-covered slope site or a skilled tow pilot???
Will try to post a picture or two: I know you all can't wait!

Greg Smith
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Joined: 26 Jan 2016, 00:20

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 22 May 2019, 22:24

Oh, and thanks for the heads up, Peter. I sent off for the Oratex without seeing your advice, but I have it now. It became available over here at about half the price, after it was sent from England! But the advantage of being a slow builder is that the expense is spread out to where I remain unaware of the total cost of this project, and aim to keep it that way.

Greg Smith
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Joined: 26 Jan 2016, 00:20

Re: Cliff Charlesworth Olympia build in Bishop, CA.

Post by Greg Smith » 23 May 2019, 03:16

Ha! So looking again at what will be the starboard wing, I see something I completely missed on the first one: between wing ribs 12 and 14 the auxiliary spar changes angle very slightly! There is a splice shown on the plan at this point... I saw this only because I put my big straightedge along the spar preparatory to drawing the spar on the reverse side of the paper. So I guess the wings will be slightly different?! Don't tell anyone. Oh, the mainspars and the T.E. are straight.I hope the rib slots take account of this: I probably widened them to compensate on the first wing without thinking why I might have to be doing that. You can laugh: I'm too far away to hear you.

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