Here's a convenient and inexpensive way to mount your GPS antenna on the firewall. We somehow ended up with a spare RV-8 aileron trim servo bracket that mounts on the fuselage floor. It's just about the right size to mount a GPS antenna. We had to modify it by making a top out of .040 aluminum, bent the sides down 90? and match drilled the holes in the antenna and riveted it to mount.
Here's the trim motor mount on the firewall:
And here with the top riveted on:
When I've done this previously, it's usually necessary to support the front end with a small strut attached by an adel clamp to the top engine mount tube, so we'll do this later in the build.
Here's the trim motor mount on the firewall:
And here with the top riveted on:
When I've done this previously, it's usually necessary to support the front end with a small strut attached by an adel clamp to the top engine mount tube, so we'll do this later in the build.