Ch. 4 - F22 - Part 1

F22 (3.3 hrs)

The bulkhead named F22 is a very important structural member that will eventually support the Canard (horizontal stabilizer - aka front wing). Two bolts will attach it to F22, and two pins (bolts with the head ground off) will secure it to F28.

Mike Beasley's Long EZ

Walter Grantz Long EZ

F22 instructions (like the instrument panel) come in the form of a scale drawing that needs to be reproduced accurately.

In Ch. 4 - Instrument panel - Part 1, I devised a method for transferring the scaled drawings to the foam. Although I’m surely not the first one to use it, no one told me about it, so I will claim it as a discovery and use it again here.

The one difference this time is that, because the F22 drawing is symmetrical about a vertical line, the plans only draw the right half of it, and it’s up to the builder to replicate the other side.

Tracing right half of F22

Using tracing paper turned out to be an excellent choice once again. I first drew the right side.

Then I flipped the tracing paper over, and repeated the same drawing on the back side of the unused portion of the sheet. Because of the semitransparent nature of tracing paper, the drawing appeared like it was done on the same surface, and it was ready for use.

Once again, I poked holes through the paper and into the foam with a paperclip to transfer key intersections from paper to foam, then connected the dots (holes) with a pen.

The result was an accurate reproduction of F22 onto the foam, and because this type of foam is pretty expensive ($105 for a panel), I also drew a required doubler for F22 on the same panel. I will use the remaining foam for F28 as well.

F22 on left (blue), doubler on right (red)