Online community for active builders and pilots of Zenith Aircraft kits (Chris Heintz / Zenair light airplane designs).


EAA Zenith Build Project

Flying Adventures!

Flying adventures in Zenith STOL aircraft on DVD!

Super-bright LED lights for your Zenith:

These Zenair-branded 3-way wingtip-mounted LED lights from AeroLED are the brightest and highest quality LED lights available on the market today. Available at a great price exclusively for Zenith builders and owners.

Discussion Forum Search:


25th Anniversary: 1992 - 2017


Welcome Zenith Aircraft Builders and Flyers!

Welcome to the Zenith and Zenair builders and flyers online community. Zenith.Aero is for and about Zenith aircraft builders and flyers. We invite you to explore and to share your own information... See for the official Zenith Aircraft website.


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Latest Activity

Terrence "Dr. Terry" Hall posted a status
"Rolled it out in the sun for first time to test EFIS, GPS and Transponder. Brake lines filled finally. Need instruction in testing of EFIS."
44 seconds ago
Gary Welch posted a discussion

WTB - Bungee Cord Install Tool

Does anyone have the bungee cord install tool they no longer need (like after installing a steel bungee)?I could use one right now.Email me at gaw dot ebm at,GarySee More
23 hours ago
Terrence "Dr. Terry" Hall posted photos
23 hours ago
Terrence "Dr. Terry" Hall posted a status
"Trim indicator wired into EFIS, Finally, Closed central console. Rewrapped cable runs for radio, EIS, EFIS now wiring almost complete."
23 hours ago
Jan Eggenfellner posted a photo
John "Allen" Walker posted photos
Jan Eggenfellner posted discussions
Sam Warner posted a discussion

Engine Oil for AVGAS vs MOGAS

What is the recommended engine oil for the Viking 130 when running on 100LL? My understanding from Mike Busch of Savvy Aviation is that synthetic oil cannot hold lead salts (tetraethyllead) in suspension and will cause a build-up of lead sludge (…See More
Michael Hille posted photos
Dan Stanton posted photos
Bert Sparrow posted photos
Charles Miller posted photos
Joe Harrington posted photos
Joe DeKeyrel posted photos
Joe DeKeyrel posted a status
"Dry fit of windscreen (should fit with no trimming). Final fit/mounting of flaperons. Aluminum baffles fitted, and cowling ready to drill."
Terrence "Dr. Terry" Hall posted photos
Terrence "Dr. Terry" Hall posted a status
"Two sets of door gas lift supports. Which one for the bubble doors. A call into Roger to see if they take President’s day off or wait til Tu"
Terrence "Dr. Terry" Hall posted a status
"Continued construction of bubble doors and hardware. Added lumbar support and improved support for both seats. Seems more comfortable."
Clint L Gosch posted a status
"Rear struts drilled, cut and test fit jury struts."
Clint L Gosch posted photos

Blog Posts

2018 West Coast Gathering?

Posted by John Marzulli on February 16, 2018 at 12:46pm 2 Comments

601 wanted

Posted by Howard Barrett on February 6, 2018 at 11:31am 0 Comments

Zenith STOL Champion!

Posted by Zenith Aero on February 5, 2018 at 2:30pm 6 Comments

750 edition 4

Posted by jeff will on February 1, 2018 at 5:33pm 3 Comments

First rivets...

Posted by Erturk Kocalar on January 27, 2018 at 5:32pm 0 Comments

Another One Going Out the Door

Posted by Robert Lemke on January 24, 2018 at 7:31am 2 Comments

Rivets around the bubble doors

Posted by Mitchell Hargin on January 20, 2018 at 6:37pm 2 Comments

Cross-Country Flight

Posted by J. Davis on January 19, 2018 at 7:35am 0 Comments


Is a CH2000 similar to a CH750?

Started by Jonathan Kreilich in Open Discussion Forums (non model specific). Last reply by Jonathan Kreilich 6 hours ago. 2 Replies

Viking Heater control valve?

Started by Jim Davis in Viking Forum. Last reply by Dean Smith 8 hours ago. 9 Replies

The end of the air cooled engines

Started by Jan Eggenfellner in Viking Forum. Last reply by Jason Fish 9 hours ago. 2 Replies

What is a "REAL" light sport aircraft engine?

Started by Jan Eggenfellner in Viking Forum. Last reply by christopher fryatt 9 hours ago. 4 Replies


New from Zenith:

Weather Maps

Custom Instrument Panels
for your Zenith

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.

New Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits

New Zenith Apparel from EAA:

Zenair Floats

Flying On Your Own Wings:
A Complete Guide to Understanding Light Airplane Design, by Chris Heintz.

Builder & Pilot Supplies:

How to videos from

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit for the latest DVD titles.


Zenith transition and Sport Pilot training:

Quality Sport Planes
Cloverdale, California:

Wheels & Wings

Pro Builder Assistance

For Sale

Zenith Aircraft For Sale 

Classified listing for buying or selling your Zenith building or flying related stuff...

Building and Pilot Supplies

Aircraft Spruce & Specialty for all your building and pilot supplies!


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Member Rules

Since this is an online community, there are a few rules that need to be followed.  We'll try to keep the rules as simple as possible and to a bare minimum and we'll change and update them as required.

RULE#1:  You'll need to use your real name, and be an actual builder, owner or flyer of a Zenith aircraft.  This site is an online…

Created by Zenith.Aero Dec 23, 2008 at 10:10am. Last updated by John Austin Feb 3.

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