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Scratch build skyray with beam mount for 0.049 teedee

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Scratch build skyray with beam mount for 0.049 teedee

Post  layback209 on Sun Dec 03, 2017 8:56 pm

Thought I would share a recent build I did to get back into the hobby after 16yrs. I purchased a sig skyray and traced a few copies as i expected to have a few crack ups re-learning, and decided to adapt one for a  Small Cox Logo teedee I came by from a great gent from Ontario.  Super glad i was able to get parts for the teedee to get it back in shape for full serivice. Thanks Cox International Very Happy .

The monokote covering took some tactfulness to keep from warping the balsa. I also learn't that you can use it to straighten minor bends in the balsa which was pretty cool.  Super impressed how well this plank wing flys around the circle. Went with 40' lines as the 35' was to quick for me.

Also found out that automotive sockets are super handy for building. Make good little weights and can be used to support pieces 90degres to the building board. (i used them to hold the tail vertical off the elevator for gluing worked really well.










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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  batjac on Sun Dec 03, 2017 11:20 pm

Great looking plane.  I like the colors.  I like them a lot.  Lessee, I have Sky Blue covering.  I have yellow covering.  Why didn’t I think of that.  I’ll have to steal your color scheme on my next Skyray. I did a similar beam mount fuselage a few months ago, but I left the whole plane blue.  Now I wish I had seen yours first.







https://stunthanger.com/smf/12-a-building/my-12a-skyray/

The Envious Mark
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  layback209 on Mon Dec 04, 2017 12:08 am

Thanks Mark, it turned out better than I thought it would. I got my inspiration for the colors from the PT-19 trainer.

I like the built up wing version that's brilliant! Thanks for the link to your build, I'm definitely going to do this and use your build as a road map. I'm actually in the mists of finishing a SkyRay 35 right now Very Happy

Derek
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  batjac on Mon Dec 04, 2017 12:54 am

layback209 wrote:Thanks Mark, it turned out better than I thought it would.  I got my inspiration for the colors from the PT-19 trainer.

I like the built up wing version that's brilliant! Thanks for the link to your build, I'm definitely going to do this and use your build as a road map.  I'm actually in the mists of finishing a SkyRay 35 right now Very Happy

Derek


In that case, here's a link to my SkyRay 35 build:

https://stunthanger.com/smf/open-forum/skyray-build-finally-getting-started/

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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  layback209 on Tue Dec 05, 2017 1:42 pm

Thanks Mark, nice looking birds. Like how you bulk built them. Did you use the kit hinge for the elevator? I did on mine it's super clean but seems very stiff, but maybe that's ok.
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  batjac on Tue Dec 05, 2017 5:51 pm

layback209 wrote:Thanks Mark, nice looking birds. Like how you bulk built them.  Did you use the kit hinge for the elevator?  I did on mine it's super clean but seems very stiff, but maybe that's ok.

Actually, I did not build from a kit. A Stunthanger Forum member sent me SkyRay 35 plans in .pdf format, and I scratch built the planes. I did use CA hinges for the elevator, though. Most people think CA hinges are too stiff for Control Line flying. What I do for CA hinges is exercise them before installation. I bend the hinge in half one way, then bend the hinge back the other way. Bending them back and forth about 200 times loosens them right up, and I have never had a hinge that I've exercised this way break in over 30 years of modelling.

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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  layback209 on Tue Dec 05, 2017 9:20 pm

Ah that makes sense. Thanks, I never pre flexed them like that before gluing them in with CA. I'll keep moving the elevator hopfully it'll free up some more. It's a lot better then what it was.

I liked that the skyray plans are full size so if you wanted to scratch build anything you got the perfect road map.
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  Cribbs74 on Tue Dec 05, 2017 11:27 pm

Stiffness is only one problem, the other is that they tend to destroy the elevator and horizontal stab in the event of a crash be it mild or wild. Of all the hinge types the stitched hinge is less likely to tear out.

That said I used CA hinges several years ago while I was still crashing. They did work ok, but I got tired of rebuilding the tail assembly all the time.

Everyone’s experience is different though.

Ron

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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  barbarian on Wed Dec 06, 2017 10:53 am

really good job, congratulations
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  getback on Thu Dec 07, 2017 6:58 am

The Skyray looks good layback209 ,as mark said like the colors ! I haven't built the ray yet but maybe get one going after seeing yours and Marks (that look great also) I Love This Forum!
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  layback209 on Sat Dec 09, 2017 9:01 pm

Thanks folks, you just can't beet the kit price. It's listed at $20 Canadian right now through great hobbies. Now I just need to figure out what to do with this 0.09 tee dee I rescued.
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Re: Scratch build skyray with beam mount for 0.049 teedee

Post  batjac on Sat Dec 09, 2017 11:33 pm

layback209 wrote:Thanks folks, you just can't beet the kit price. It's listed at $20 Canadian right now through great hobbies.  Now I just need to figure out what to do with this 0.09 tee dee I rescued.

Scale the SkyRay up by 10% and mount the TeeDee on it?

The Upsized Mark
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Re: Scratch build skyray with beam mount for 0.049 teedee

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