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Building the HKM 1:2.5 ASW 28
Rick Briggs

Molding Cockpit Seat Pan and Seat Back (Part 2)

The following photos show the process of making plugs and molds for the seat pan and seat back. This process is much the same as the ASH 26 I did on the ISSA Tech Tips page only here I decided to use polyester resin insted of epoxy.


I took a pice of 1/32" aluminum plate and fabed a "Z" shape and epoxyed it to the back of the seat back, inline with the top of the pan. Then I made a cut out in the back of the pan to recive the "Z" plate.

 

 

Here you see how it interlocks.
In the front of the seat pan I mounted a 4/40 alen head wood screw. I also mounted a small wood block under the pan to recive the screw.
A little trick I have learned after loosing many a screw in the grass, take a washer and solder it to the screw on the bottom side. No more lost screw!
Seat mounted to pan.
Pilot in seat. Later I will permanently mount the pilot to the seat via a cloth strap hidden under the clothing.
Compeleted assembly.
Here you can see there is plenty of room for battries and R/C stuff under the front of the seat pan.