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


Chris Heintz, 1938 - 2021

Remembering Chris Heintz

Read the homage to a man and his dream, and illustrated biography of designer Chris Heintz's professional life.


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.


Thank you to all who participated and visited for the 2021 Zenith Aircraft Homecoming and Fly-In! What a fantastic event!! Check out the photos.


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Latest Activity

Kelvin Carson posted photos
6 hours ago
Jeff Bingham posted a discussion

Cortec on firewall?

Does anybody know if Cortec would be okay to use on the front side of the firewall, between mating surfaces, or would it be to hot for Cortec to Handle?
16 hours ago
Ben Knox posted a discussion

For Sale: Zenith 750 Cruzer

Nearly complete project. A big advantage to this project is the buyer can obtain a Repairman's Certificate and be able to perform your own maintenance and annual inspection. Used Lycoming O320 150 HP, nose gear puck system, electric trim and flaps,…See More
19 hours ago
Arnie Minear posted a discussion

O-360 users forward or bottom intake

For those O-360 lycoming users do you have a forward facing induction or bottom induction on your oil pan.  Wondering if I will have enough room in the cowling since ours is a bottom facing induction.  We will be using just a throttle body for our…See More
Terrence "Dr. Terry" Hall posted a status
"Lost three weeks because of destroyed and leaking VW fuel fill senders. Don’t make my mistake in building. Buy a better sender."
Terrence "Dr. Terry" Hall posted a status
"Finally reinstalled both wing tanks and riveted the wing skins. The sound of pulled rivets into main strut is pleasurable. Ready for flight."
Carlos Sa posted a photo

air bubble under gel coat

This spot cracked open while I was working on other areas of the bottom cowl (left).I repaired it with a mix of resin and filler (right).Thankfully it happened before any finishing work. The obvious question left unanswered (for now, at least) is:…
Bill Bear posted photos
Bill Bear posted photos
Bill Bear posted a blog post

Making Progress

Got my fuel flow/air pocket problems resolved, got a replacement major overhauled O200A to replace the C90, finally got oil pressure on the O200A, and ready for the first start attempt.  Yesterday I had my fingers crossed as I tied down and chocked…See More
Calvin Olson posted a discussion


Has a little over 800hrs on airframeVW motor about 25hrs2 setts of wings long and short.Not in annual, but still registeredI'm in Lincoln Nebr.402-416-7814See More
John Burns posted a status
"Inspection completed today. It is in the eyes of the FAA officially an airplane. Now to find some quiet weather for that first flight."
Bob Widmer posted a discussion

Fuel Flow Transducers

 Being from Canada I must have a Pre Cover inspection completed on my 750SD by the MD-RA and hope to have that completed within a week or so. I will then install the fuel tanks and consider installing the fuel senders as provided by Zenith - which…See More
David Farlow posted a photo
David Farlow posted a photo

Brake Pedals With Brake Cylinders and plumbing

Detail of brake cylinders on brake pedals showing lengthened clevises for two of the brake cylinders and interconnecting brake lines from Master Cylinders to secondary cylinders.
Arnie Minear posted a discussion

Electronic ignition and fuel injection

Has anyone experience with the FlyEFII system.  We are giving serious consideration to using it for our Lycoming engine.  It could be used on other engines also.  Would really like to hear of any experience with it. Good or Bad.ThanksArnieSee More
Zenith Aero posted a video

Zenith "Sky Jeep" back-country landing and short takeoff at Mt. Eagle Escape at Lake of the Ozarks

Jon Humberd and his Super 701 stopped in at Mt. Eagle Escape at the Lake of the Ozarks on his way to Arkansas following the Zenith Aircraft Homecoming Fly-In...
Sep 21
Rodolfo Franca posted a photo

Zenith CH 601 XL

My 601 XL.
Sep 21
Tony posted a discussion

CH640 plans wanted

I am looking for a set of plans for a CH640. Hoping that someone has a set they are not going to build from or knows someone who does. Any leads would be greatly appreciated. See More
Sep 20
Zenith Aero posted a photo

Zenith Homecoming: Thank You!

We wholeheartedly thank all who participated at the 2021 Zenith Homecoming and Fly-In! What a great time! Check out the photos (with more to come):
Sep 20

Blog Posts

Making Progress

Posted by Bill Bear on September 24, 2021 at 1:12am 4 Comments

Stabilizer Skeleton Work

Posted by Austin Loveless on September 19, 2021 at 9:41am 0 Comments

Super Duty Viking Engine Install

Posted by Adam Andrews on September 8, 2021 at 9:39am 0 Comments

Under Carriage fairings

Posted by Robert Schneck on August 23, 2021 at 4:32am 1 Comment

For Sale -CH 601HD, S/N 6-3248, N738J

Posted by Jim Hoak on August 22, 2021 at 10:33am 0 Comments

Zodiac training

Posted by rajan kaleekal on August 16, 2021 at 6:15pm 0 Comments

Oil cooler vent

Posted by Kelvin Carson on August 16, 2021 at 7:16am 2 Comments


New from Zenith:

Zenith Planes For Sale 

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

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, Dynon and Garmin avionics, and more.

Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits

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.

Aircraft Insurance:


West Coast USA:

Pro Builder Assistance:


Transition training:

Golden Eagle Aviation

Pianosa Flying Farm

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

For Sale

Zenith Aircraft For Sale 

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


Follow Up Report:


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 May 29, 2019.

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