Zenith Aircraft Builders and Flyers
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David A. Judkins
- Marion, AR
- United States
- Blog Posts (24)
- Discussions (4)
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- Groups
- Photos (51)
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David A. Judkins's Discussions
Elevator Nose Rib Measurement Question
Started this discussion. Last reply by David A. Judkins Nov 5, 2012. 2 Replies 0 Likes
A question for you CH 750 scratch builders. I am building a kit but I need to fabricate an elevator nose rib to replace one I damaged. In determining the tip radius, do I use the tooling hole 8mm…Continue
David A. Judkins's Page
Latest Activity
David A. Judkins posted a blog postCH 750 Stabilizer Finished!
Having recently finished the CH 750 elevator, I resumed work on the stabilizer. You may recall that I damaged the skin on the stabilizer when I laid the upper skin side on the bottom of the skeleton and riveted the entire side before I realized what I had done. In removing the rivets, I damaged the skin enough that I had to buy a new one during my visit to the factory during the September fly-in and open house. Today, I finished the major assembly of the stabilizer and now have to attach the…See More
David A. Judkins posted a blog postIt's warm again!!
The project has reawakened after a long winter's nap. Began reassembly of the CH 750 elevator.Skins are cleco'd and now the assembly is ready for rivets. Will start that next weekend and that should complete the elevator. After that, pull out the completed stabilizer skeleton and lay the skin on it. Sure is good to be working on the plane again!!See More
David A. Judkins posted a blog postPriming the Elevator
Spent a rare relatively warm January Sunday afternoon disassembling, deburring and priming the CH 750 elevator. Still a few hours left and hope to complete tomorrow. This is the first project work I've done since before the holidays. Felt great to be working on it again!See More
David A. Judkins posted a blog postElevator Nose Rib Redux
After several attempts of measuring and forming rib molds, and then nose ribs themselves, I finally formed one that I can use to replace the factory rib I damaged some time back. With it on, I have replaced the nose skins and have drilled them out to final size. Should be able to finish pretty soon (which is a relative term since I've been working on the tail since April!). More pictures to follow. See More
David A. Judkins posted a blog postTrim Tab
Spent time this weekend working on the trim tab assembly. Have opened the cutout for the push rod and have temporarily mounted the servo motor. Everything is drilled out to final size, but not riveted yet. Probably the last time I'll work on the plane until after Open Hangar Weekend. Look forward to seeing and meeting many of you there!See More
David A. Judkins posted a blog postLabor Day Weekend
More work on the elevator Saturday and again today, Monday. Have drilled spars ribs and skins to final sizes and about ready to disassemble for priming. Worked on fitting the upper and lower horns today.See More
David A. Judkins posted a blog postElevator
Put the horizontal stabilizer issues aside and concentrated on the elevator assembly yesterday. Rib assembly is built and cleco'd. Tips are drilled but need to do some sizing on the hinge pins. Got the rear channel assembly built and installed. Should finish elevator next weekend. Will then resume work on the stabilizer. Looks like I'll be able to use A5 rivets where I have had some rivet removal damage, thus saving me from having to purchase a new stabilizer skin!See More
David A. Judkins posted a blog postHorizontal Stabilizer - Rivets Removed
After realizing I have rivetted the wrong side of the stabilizer first, I drilled out the rivets and removed the skin. At first, I thought I was going to be able to salvage everything, but upon closer examination, it is obvious to me that I have to replace the skin as there is too much hole damage in some areas from removing the rivets. It looks as though the spar and ribs are ok. Putting the stabilizer aside for now and starting on the elevator. May try to pick up a new skin at Open Hangar Day…See More
Profile Information
- Aircraft Model
- STOL CH 750
- Project Status
- Just started
- Building From
- Kit
- Your website (about your aircraft...)
- http://davidszenith750.wordpress.com
- Building Experience
- No Experience
- Flying Experience
- None
- Building and Flying Info / Your Profession / Other Background Info
- First time build. Student pilot. IT project manager.
David A. Judkins's Photos
David A. Judkins's Blog
CH 750 Stabilizer Finished!
Posted on April 28, 2013 at 9:48pm 1 Comment 2 Likes
Having recently finished the CH 750 elevator, I resumed work on the stabilizer. You may recall that I damaged the skin on the stabilizer when I laid the upper skin side on the bottom of the skeleton and riveted the entire side before I realized what I had done. In removing the rivets, I damaged the skin enough that I had to buy a new one during my visit to the factory during the September fly-in and open house. Today, I finished the major assembly of the stabilizer and now have to attach the…
Continue It's warm again!!
Posted on April 14, 2013 at 11:43pm 0 Comments 2 Likes
The project has reawakened after a long winter's nap. Began reassembly of the CH 750 elevator.Skins are cleco'd and now the assembly is ready for rivets. Will start that next weekend and that should complete the elevator. After that, pull out the completed stabilizer skeleton and lay the skin on it. Sure is good to be working on the plane again!!
Priming the Elevator
Posted on January 20, 2013 at 6:02pm 0 Comments 1 Like
Spent a rare relatively warm January Sunday afternoon disassembling, deburring and priming the CH 750 elevator. Still a few hours left and hope to complete tomorrow. This is the first project work I've done since before the holidays. Felt great to be working on it again!
Elevator Nose Rib Redux
Posted on December 2, 2012 at 6:56pm 0 Comments 0 Likes
After several attempts of measuring and forming rib molds, and then nose ribs themselves, I finally formed one that I can use to replace the factory rib I damaged some time back. With it on, I have replaced the nose skins and have drilled them out to final size. Should be able to finish pretty soon (which is a relative term since I've been working on the tail since April!). More pictures to follow.
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Welcome to the family.
I wish you the all the best with your project. If you ever get the chance to visit the Zenith factory please take the time to stop by our builder assist facility too. We are their newest and nearest builder assist facility and like to have visitors. We are right here in Mexico, Mo., not far from the factory.
Take care and good luck,
Bill Carter
American Light Sport Aircrafters
Builder Assist & Assembly Center
www.LightSportAircrafters.com