Online Community of Zenith Builders and Flyers
I have spent a little time experimenting with rudder trim, and I think it would be worthwhile to share my experiences with the group. I know that most of you are probably saying "Why?" to the concept of rudder trim for our STOL aircraft. In most cases, it is probably not necessary. However, I found it useful. I'll explain.....
The Aerosport IO-375 makes 195 hp, and lots of P-factor. With that power plant, one can point the nose up and go. In the 801, I can also haul a…Continue
I recently purchased a Bosch GSC 12V-13 Cordless Sheet Metal Shear. After having a chance to use it a little bit, I decided to post a demonstration of its use online.
My short assessment is that the shear will have its uses, but because of the stretching caused by the shearing action it would not be suitable for cutting parts that need to remain as flat as possible.…Continue
Added by Damon Brantley on September 22, 2019 at 11:46am — No Comments
Added by Bradford Drown on September 11, 2019 at 8:25pm — No Comments
Dear collegues, I am in the final building process and cannot locate instructions-guide on how to measure-cut - place - secure top window.
Would apprecciate any input on where this info is??
Thank you all
Added by Jonathan Kennedy on September 11, 2019 at 8:24pm — No Comments
An issue with the center wing spar rib stations presented when fitting the rear ribs. The spar rivet holes are pre-drilled and the flange on the rear rib is not. I noticed that the top and bottom spar web rivet positions were very close to the ends of the rear rib flange, violating the 3 diameter minimum 2 diameter rule for rivets. I spoke with Roger at the factory. and the top and bottom rivets are useless. As a solution, another rivet hole is added at the top and bottom of the rib station…Continue
Earl Downs is a Zenith builder who is known to many others builders because he furnishes pre-test flight preparation training in his 601 XL-B. Because he holds an FAA Letter of Deviation Authorization (LODA), Earl is allowed to provide this and transition training for both the 601 and the 650. You may also have met Earl as a forum presenter at a previous Zenith Aircraft open house events.…Continue
Added by Zenith Aero on September 11, 2019 at 11:00am — No Comments
Scratch construction of the ailerons and flaps has been started. I decided to try to document as much of the construction of these as possible as this should be my last major set of parts to bend. There will be two or three parts to this. In the first part, I document the construction of test sections to verify my CAD drawings are correct.…Continue
Added by Damon Brantley on September 9, 2019 at 7:18am — No Comments
Added by Bradford Drown on September 6, 2019 at 4:45pm — No Comments
No easy task. After a lot of study of the drawings, I totally screwed up the first two gear channel parts and ordered new ones. I believe I have the left one done; drilled, clecoed and ready to rivet. I will to wait on the spar riveting, I see some challenges there with the second row of rivets in the rib channels. …Continue
Added by Bradford Drown on August 30, 2019 at 4:00pm — No Comments
After spending a very frustrating week trying to mount my tubeless tires on the Matco rims provided I have given up. The O-rings they supply for sealing the two halves of the rims together absolutely will not fit. Matco say to roll the O-ring over the rim to the flat at the edge of the rim, assemble the two halves and roll the O-ring back to the center of the rim and lubricate the O-ring and you should be good to go. Well this is absolute impossible. the O-rings are to…Continue
I unpacked the finishing kit this weekend and had to add two more hardware boards to keep it all organized.
Today closed up and riveted the top skin and horns. Rechecked the electric trim with a 9v battery, Not happy with the provided cotter pin attachment to the clevis rod as it appears to me to be hazard should it catch on something so I spent extra time laying it down. I notice a lot of openings in this design which is an invitation to insects, mud wasp and what have you. Anyone have ideas in how to fill those openings?…Continue
The Arlington Fly-In started today in Washington. If you have the opportunity two Zenith/Viking powered…Continue
Added by Jan Eggenfellner on August 16, 2019 at 2:22pm — No Comments
I have been stuck working on the elevator trim tab. I needed to fabricate the horn and install it in order to adjust the servo push rod and ran into a problem with the drawing of the horn. It does not fit the clevis of the RCS-7 Clevis kit supplied with the CH601 kit. I worked to modify the horn to fit the clevis, positioned it and drilled ready for rivets…Continue