Larry Zepp
  • Male
  • Fort Wayne, IN
  • United States
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Larry Zepp's Discussions


Larry Zepp's Page

Latest Activity

Larry Zepp posted a photo


Finally conquering the canopy!
May 17
Larry Zepp posted photos
Apr 19
Larry Zepp posted photos
Apr 14
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Mar 28
Larry Zepp posted a photo

Instrument panel design

Zodiac 650B Panel with IPAD Pro, backup instruments and bracket for IPAD Mini. Ahead of the panel is Levil 3AW AHARS and ADS-B IN with certified GPS option. Com radio, fuel selector, fuse panels and switches on center console.
Nov 24, 2019
Larry Zepp posted a photo


The RV guys love Crow Belts and I love them too! Custom sized 5 point harness for my Zenith Zodiac.
Aug 17, 2019
Larry Zepp posted a photo


I used my DXF CAD panel layout to have the panel and center console cut out with an abrasive waterjet. The two big spaces are for a 10.5"IPAD Pro and IPAD mini - with cooling air being blown through the cutouts. Viking View EIS is at top of panel,…
Jun 29, 2019
Larry Zepp posted a photo

Excellent Canopy Trimmer

I tried the abrasive cutoff with air grinder - hard to hold low speed and too much friction. Also tried the diamond cutoff wheel on a Dremel tool - not enough torque to maintain low speed and small wheel diameter.I had a 3.5"diamond cutoff wheel…
Jun 10, 2019

Profile Information

Aircraft Model
Project Status
Less than half
Building From
Partial kit
Building Experience
Have worked on airplanes before
Flying Experience
Private Pilot
Building and Flying Info / Your Profession / Other Background Info
Inventor / electromechanical engineer
Business web site
Hybrid retrofit system for vehicles

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Larry Zepp's Blog

Aileron stops for piano hinge option

Posted on September 29, 2013 at 7:43pm 1 Comment


The aileron stops for the piano hinge aileron option need to be longer than the standard stop shown in the plans. The stops that I received with my piano hinge aileron option were labeled for the PH stop, but they were the standard size and matched the dimensions in the plans for standard stops.


A drawing for the longer piano hinge stop…


Making sure the fuel sender is sealed

Posted on June 16, 2013 at 11:13am 5 Comments

Hi Builders,

I wanted to make very sure that my fuel senders were sealed before putting the tank in the wing and then filling it with fuel in the future!


The builders guide says the screws should have fiber washers under the head for sealing. These are no longer provided in the supplied VDO install kit. It sounds like a very good idea to have a fiber washer to help seal or a copper washer - like the seal washer used in banjo fuel fittings. I am also using the…


Cleaning the inside of the fuel tanks

Posted on May 29, 2013 at 10:28am 2 Comments

After cutting the 59 mm hole for the fuel sender, I needed to get some chips out of the tank.

It worked well to get a small 110 VAC floodlight bulb and socket that would fit into the fuel cap hole to light the inside. To remove chips, taping a painters tack cloth to a long stick made it really easy to pick out random chips and make the tank inside clean and ready to seal the sender.

Larry Zepp - Zodiac 650B builder

Sealants for fuel fittings, fuel cap neck & sender

Posted on April 22, 2013 at 4:09pm 4 Comments

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…


Aluminum cutter 2.0

Posted on October 27, 2012 at 8:18pm 1 Comment

Aluminum cutter 2.0 - A dremel tool is probably the most useful tool tol help with your homebuilt project. When trying to use a cutoff wheel, however, you have to control depth, angle and path all at once. Dremel doesn't make a base for the tool like the base on a skilsaw, but that would really help!


Dremel does make an attachment that threads onto the…


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