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Old 08-01-2021, 05:58 PM
Larry b is offline
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Martin Sonka's Edge 540V3

After attending the Red Bull air races in Indianapolis and seeing Martin Sonka's Edge 540V3 up close and in person I just had to have one. Well 3 years later and several other interim model projects it's finally getting close! Span is 119", power is a DLE 120 twin, and it tips the scales at 39lbs. I think the paint added a ton of weight but I just had to go with a base coat/clear coat that I sanded with 1000 grit and then compounded out to a smooth surface.
The model is all scratch built, spinner, landing gear and all the other big parts. I thought it might be a challenge to design and build a model that I can fly in both IMAC and designers scale competition. But first it has to fly!

The scale civilian section of Flying Giants only has 11 threads, there is a bunch more interest in the warbirds I guess?
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Last edited by Larry b; 08-01-2021 at 07:29 PM.
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Old 08-02-2021, 09:01 AM
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Wow! Very nicely done! What engine? What does it weight? Do you have any build pictures?

-Craig
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Old 08-02-2021, 03:38 PM
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Beautiful, really nice!
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Old 08-03-2021, 11:15 AM
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Well done!
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Old 08-03-2021, 11:25 AM
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Absolutely Beautiful
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Old 08-03-2021, 01:59 PM
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Česko, Kraj Vysočina, Jihlava
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Incredibly beautiful, I have a weakness for Edge, it's nice that you chose my compatriot's plane.
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Old 08-03-2021, 02:58 PM
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Gettin better 1 [email protected] a time!
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Very nice!
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Old 08-03-2021, 09:21 PM
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Thank you all for the kind words, my wife is still in the hospital this evening recovering from back surgery so I have neglected to check the thread.
Viita, my wife & I had a chance to meet Martin Sonka while at Indianapolis during the races, what a guy! I'll post the photo of my wife chatting with him. (and getting his autograph) I was really disappointed when I read that Red Bull was going to "pull the plug" on the air races, but I can understand that if it costs $20.00 to put on a show and you only make $10.00 that is no way to run a business.
After I get my wife home and she starts on the road to recovery then I'll focus on getting this thing in the air.
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Last edited by Larry b; 08-03-2021 at 09:41 PM.
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Old 08-03-2021, 09:28 PM
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And here are a few photos of the build, I did my own plug, molds & glass parts. The paint alone was 4 months of masking & spraying!
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Old 08-04-2021, 09:59 AM
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Gettin better 1 [email protected] a time!
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Amazing composite work!
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Old 12-21-2021, 01:15 PM
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Great work, love that plane !
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Old 12-21-2021, 06:32 PM
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Wow.. truly scratch built!! You are one talented cat.. good luck on your maiden.. and wishing your wife a speedy recovery!
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Old 12-22-2021, 10:49 AM
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Thank you guys,
My wife is doing really good, she is pretty much back to her normal routine and best of all not in pain!
The Edge now has 3 flights on it, I ended up adding a bunch of lead in the nose after a really exciting tail heavy maiden flight. I have just added another pound of lead in the nose after flight number 3 and I am hoping that will bring the CG up to a nice location. I like a model to be just a bit on the nose heavy side. Hopefully this weekend if we get a "good weather" day I'll go for flight number 4. I'll see if can talk my wife into trying for an in flight photo or two.
Larry
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