Hello

the plane is finished.
It remains to install the switch, receiver and the plate support accus propulsion.
the paint of the fuselage will be made after the first flights and possibly modifications
Maiden flights will be made in about ten days
Claude

https://cimg9.ibsrv.net/gimg/www.rcu...eb2f477c01.jpg
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Hi
Neo Stage Bip , build form smal balsa pieces ,silk cowered and painted , powerd by OS belt motor , so fare only 6 flights but it seems good so fare still playing with trows and CG.

Hello Rune
Nice to read you.
Awesome job !

Is it silk ? http://www.morris-hobby.jp/43_730.html
What dope do you put with silk?
Do you add talc in the dope for the finish?
Claude

Yes its that type off silk , if its easyer with silk than thin glass I'm not really sure . Dope, I used ordinary oldfashion dope not the Ezcote thing (or what its called) and With talkum after the first coat to glue the silk.
I added fisrt the silk then 2-3 coats with talkum depending if it was needed to fill then normal Automotive filler before basecoat and finally clearcoat.
weight just under 5 kg ( I hope I can trust my weight)

both Yours looks Nice and its always Nice to see that some make their own planes , Nice work guys(Speedracertrixie and Papaone)

Hello Rune
I think silk is more lighter than glasscloth.
Did you have problems of pulling dope and talkum under paint when you removed the scotch ?
claude

How did you cut out the graphics?....or is that paint??

Hello
Graphics are made with Oracover.
Friend of mine cut them with cnc.
Claude

https://cimg2.ibsrv.net/gimg/www.rcu...1aa04b01be.jpg
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some few Places Claude i think maybe those Places I got to much thinner and talkum in the dope the thinner disaper but if the dope is to thin it dont "glue" the talkum good, or maybe it was to thich layer at those spots it was at leading and trailing ends off wings and stabs this happen.
If silk or glass is lightest I really dont know , this has nothing to do With the weight off the material but it has I think With the materials way to "Close" for the dope so it not goes in to the balsa , but also how much filler you need, One thing is that the silk is not as loose in the weaw as the glass but thats makes it a bit more dificult to work With but not much ; I also tried to used a hot iron on it to make it flat but that was diffucult , so I hang the pieces in my work shop and sprayed it With water and let i dry before using it

Hello Rune

Thanks a lot.
Some pictures with friend of mine Norvegian guy who owns an Angelit.
He will compete in FAI worl cup Aix en Provence on 31 may to 2 june 2019.
Claude

https://cimg1.ibsrv.net/gimg/www.rcu...a410da396d.jpg
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Say hello to Frank for me!

Very nice....It's good to have friends! I plan to freehand my monocote cuts, since I don't know anyone who can cut that way, but I also don't have cad graphics.

Caelus
 

Caelus 2019
 

Caelus 2019

Hello

Friend of mine Eric did maiden flights yesterday with his Harmonie I built for him.
I took opportunity to fly mine.
Claude


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Hello

Maiden flights bip Arpege.
claudehttps://cimg4.ibsrv.net/gimg/www.rcu...ae4989ddea.jpg
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Hello

I'm building an Excess (kit design Pascal Nowik from Pegase Composites) for my friend Yves.
Quality of the kit is excellent so very easy to built.
Claude
Pegase composites

https://cimg1.ibsrv.net/gimg/www.rcu...5260248e56.jpg
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Scorpio has done 11 flights now. Trimming out pretty well. Specs - Length 2000 mm, span 1935 mm, wing area 64.5 dm2 ( 999 sq ins), stab 16.2 dm2(251 sq ins). Plettenberg 30-10 Advance with Falcon 19.5*13 3 blade. Weight ready to fly with 1110 gm pack is 4430gms

Very nice CW. Could you tell us more about the actual kit of this particular pattern plane? Probably only a few of us have heard about the Scorpio. Looking forward to hearing more from you.

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Thanks wattsup. The model is designed by a well known Australian pattern flyer David McFarlane. The model is scratch built by me and is a development of David's previous design - the Arbalista. The plug for the new mold was made by modifying the Arbalista fuse. The layup is 1.5 oz fibreglass/ 1.5 mm balsa/ 1.5 oz fibreglass with carbon fibre reinforcement for the undercarriage and motor mount. Wings, stab, rudder and cannaliser are 1.5 mm balsa and honeycombed foam with Monocote. David's original pattern design was the Slingshot ( 1990's I think) and we have used the medieval weapons theme in naming subsequent models that include Trebuchet, Ballista, Mangonel and Arbalest. We had run out of names so the previous model was the Arbalista- combination of Arbalest and Ballista then I saw an article on a Roman torsion powered crossbow that was called the Scorpio or Scorpion- hence the name. Mine is the first one to fly with three more under construction. Build is pretty conventional- always trying to get things lighter of course. You may find a few pics of the build interesting

Thanks for the timely response CW. Much can be gleaned from the pictures included with your explanation. An AUW weight of 4430 grams ready to fly is nothing short of amazing. I too am a firm believer in one's ability to pay attention to detail and keeping the plane's weight as light as possible. It does not take much talent to crush the 5050 gram limit but it takes skill and attention to detail to reduce the AUW of the Scorpio by approx 600 grams! Are you planning on making a basic kit available for purchase? I am sure there are other flyers interested in the Scorpio. BTW, I am familiar with the legendary designer and builder David McFarlane. Again, thank you.

Hello CW
I know the time it takes to make a master, molds and fuselage.
Congratulations, It takes a lot of patience and motivation to complete the project.
I go regularly to the website Talking F3A Australia where there are many beautiful pictures of building.
https://www.facebook.com/groups/vicpattern/
Claude

Thanks for the comments wattsup and papaone. David owns a model shop and I have sometimes done a kit of previous models for sale through him. I am retired and the building is a hobby and is certainly not a commercial venture for me. I have done a couple of builds for other people and enjoy it as long as there is no time pressure to take the fun out of it. I enjoy the challenge of trying to build as light as I can. Unfortunately light balsa is hard to get at the moment so that is adding some difficulty

Hello

Painting of plane Excess is done. Remains the varnish.
claude
https://cimg3.ibsrv.net/gimg/www.rcu...839e5e6f21.jpg
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Very nice job. Flying soon?

Hey Bill,

It needs wheel pants.......

regards

Hello
I like to repair and give live back to pattern (Nuance of friend of mine very disappointed but is happy now !)
Claude

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Really nice repair, Claude!

Hello

I repaired friend of mine plane Element which lost batteries in flight. Plane stalled on landing and fuselage was cracked.
Claude

https://cimg4.ibsrv.net/gimg/www.rcu...ebb69af12b.jpg
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Hello

After maiden flights of the bip Arpege to detect possible defect and modifications, paint of the fuselage was made.
claude
https://cimg4.ibsrv.net/gimg/www.rcu...1c53ea180b.jpg
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Hello

Paint and varnish finished. Just missing name of the plane.
Friend of mine and his dog are very happy.
claude
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Hello
We have time to keep busy !
After 4 years of loyal service and a few hundred flights; my best plane decided to embrace the earth following a blocked servo fin.
The wings and the front part of the fuselage did not withstand the impact (built probably too light!)
As he was flying really well, I started to make a small repair to give him a second life.
Claude

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Nice work Claude.