April 2013 Blog Posts (23)

CH-750: 2 x 12 Gallon Fuel tanks; Wanted or For Sale

I took over a CH-750 project that was started by another builder.  I am installing a Lycoming O-235, and the standard 12 gallons tanks just aren't enough.  I have TWO standard 12 gallon tanks with sending units installed in perfect condition that I will sell for $500 (total for both) so that I can apply that money towards the 15 Gallon tanks, or I will give you $500 for your standard tanks (so that you can upgrade) and I'll just install Four 12 gallon tanks.

Any takers?

Added by James Cameron on April 29, 2013 at 8:53pm — 3 Comments

CH 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…


Added by David A. Judkins on April 28, 2013 at 9:48pm — 1 Comment

Zenith Zodiac 601XL-B Value (What is It's Market Value ???)


(690 Hours total time.)

(The following is my opinion) ...

I bought it, I built it, I maintain it and I…


Added by Mark Ertz on April 24, 2013 at 11:57am — 3 Comments

Corvair engine and Aluminum sheet

Last week I came across a gentleman that was selling sheets of 6061-T6 (12 - 0.016, 4 - 0.025, 1 - 0.032 and 1 - 0.040 all sheets are 12'x4') and a Corvair engine. As luck would have it he lives only 20 miles from me! My son and I went last Saturday to…


Added by Earnest Fontenot on April 24, 2013 at 8:05am — 4 Comments

Needed: half a 650 canopy

So I trimmed too much off my canopy. I cut off too much of the back then realized what was left was too wide to fit the aft fuselage skin. The front half would work but I don't have a usable back half. Anyone been in my situation but needed only a front half? I was hoping someone would sell their aft portion rather than paying for a whole new plexiglass.

Added by Christopher Nail on April 23, 2013 at 7:19pm — 1 Comment

Drafting desk... kind of

So here is my idea for a make-shift drafting desk. I ordered 2 aluminum squares from Amazon (I have the Prime, so get free shipping on most items). I screwed one to the table top and the other can slide for the straight edge. I wish I could…


Added by Adam Hess on April 23, 2013 at 1:23pm — No Comments

Sealants for fuel fittings, fuel cap neck & sender

I am finally working on the rt. tank and fuel system prior to closing the right wing. I did some research on sealants for the stock welded fuel tanks - so I should never have any leakage problems!!

Tapered pipe thread fittings -

I have long experience using either Loctite # 592 - Pipe sealant with Teflon (PST) or Permatex pipe thread sealant on fuels, oils and high pressure gases. Both sealants cure when air is excluded and have teflon in them to prevent galling of metal pipe…


Added by Larry Zepp on April 22, 2013 at 4:09pm — 4 Comments

Jabiru 3300 Top Overhaul (continued)

Just completed test flights after top overhaul.  High flow valve lifters with improved upper oiling system was a easy but expensive change to our a/c.  New piston were added as well. 


Reinstalling connecting rods went very smooth and neat.  Cylinders were reused and new through bolts were installed, too.  Cylinders and pistons mounted together like…


Added by Mark Ertz on April 20, 2013 at 10:29pm — 1 Comment

Getting started on plans built CH-750

So, I've wanted to build a plane since my dad got an RV4 when I was about 16. I flew a C150/150 at the time, and liked the high wings, plus always liked to explore off the beaten path. So about 2 years ago, while deployed in Afghanistan, I thought to myself that I'd have a plane if only I'd started building about 4 years ago.

I started researching what to build and ran across the CH-750. Other planes I considered were the CH-801 and the bearhawk. I love the bearhawk, but could…


Added by Adam Hess on April 19, 2013 at 12:26pm — 3 Comments

Oil Baffles

I received 2 oil baffles from factory. There was not an illustration, drawing or picture on installation. Does anyone out there have details on proper means to attach the baffles to my Jabariu 3300 on my 601-XL-B? (Part numbers 33-B, and 33-B1)

I did find it ironic that the decals for 601 wing Mod that were included had 2 pages of installion details, yet nothing on baffles. Contacted Jabariu, and they were not helpful, as they said parts were not theirs.

Added by Don Forwood on April 18, 2013 at 1:07pm — No Comments

Zenith 701 Humanitarian Pod

Our drop tests went 100% to plan.  We now start working on how to get our new project to reach the tougher parts of West Africa with the 750 platform (more load, more range!).  Thank you Zenith and Rotax for making it possible!

Added by Jonathan Porter on April 18, 2013 at 10:32am — No Comments

First Stab Panel Decision

With the firewall finished I now have all the major components assembled and have to work out how, and in what order, to put these things together. Part of the problem to solve is where the non-metal parts go that aren't covered by the instructions but clearly have to be installed before panels get riveted over them.

So that got me thinking about my panel and I think I am fairly comfortable with this as my first "definite" decision; can't help feeling I will make more…


Added by Paul Sanders on April 16, 2013 at 12:26pm — 4 Comments

Dynon Skyview data recording

My 701 passed it's inspection on Mar 1.  I took the first flight on Friday, 4-12-2013.  All went well and I'm on my way to phase I testing.  I was simply amazed at the information I got from the Dynon Skyview.  The black box records at the rate of 16 times per second and the regular output file is programable for rate desired for information gathering.  Using the recorded information I have reviewed the flight numerous times looking at engine performance and flight…


Added by Terry Hagel on April 15, 2013 at 2:30pm — No Comments

It'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!!

Added by David A. Judkins on April 14, 2013 at 11:43pm — No Comments

Work bench is next.

I watched the scratch build videos and purchased some tools from Zenith, a Ridged sander shown in the video, a Rockwell Blade Runner for cutting the form blocks. I highly recommend the videos. I would not have believed you could cut sheet metal with a Plexiglas cuter and a straight edge if I would not have seen it in the video. I purchased a few other simple tool based on the video as well.

The Corvair Engine manual and video was excellent  and I am looking for a core.



Added by Michael T. Klukas on April 14, 2013 at 4:34am — 2 Comments

New cruiser

Just saw the new 750 cruiser. Anybody ever removed there leading edge slats to see how much cruise speed would increase?  Maybe you could store them in the fuse somehow when not needed:)

Added by Michael T. Klukas on April 13, 2013 at 8:19pm — 3 Comments

Arizona 601/650 Pilots...Question

My 601XL-B is now signed off by FAA to begin phase I testing, however, the flight school in Prescott that I was taking instruction at decided to get out of fixed-wing training.  Does anybody recommend another flight school/instructor with an "LSA" in Arizona, that I could contact for finishing my "Sport Pilot" lic.?


Thanks in advance...



Added by Mike Miller on April 10, 2013 at 1:26pm — 3 Comments

Zenith CH 750 CRUZER

[The following is our official "Press Release" for our new design. We plan to share more information soon about the new design and kit.] 



Sun’n Fun Fly-In (Lakeland, FL) – The CH 750 Cruzer has arrived! Zenith Aircraft Company is introducing its…


Added by Sebastien Heintz on April 8, 2013 at 6:30pm — 36 Comments

Fuselage and Cabin Frame Joining

Taken from my build log: http://www.stol750project.info

Today was a milestone day, the joining of the two fuselage parts and installation of the cabin frame.

But how did we get there? Well, we started off with some help and not just any old help, but my wife's Uncle Allen. He has years of experience of building all kinds of things, although never an airplane. We knew that between his experience and his toolbox…


Added by Paul Sanders on April 8, 2013 at 3:20pm — 1 Comment

Top Overhaul of 3300 Jabiru

March 2013, 675 hours, Low compression, blow by @ rings & two leaking intake valves.  Major issue is with baked carbine on pistons, stuck rings and oil starvation @ top of heads.  New pistons and new hallow rod & valve system assem.  Need control of mixture so we are going with Rotec TBI, dropping Bing.  Will…


Added by Mark Ertz on April 7, 2013 at 7:30am — 3 Comments

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