Had a productive 4th of July.
I removed the moulded plastic belly pan and started to figure out where to place the servo. It ended up being further back that I would have liked due to the location of the flap servo on the opposite side. Oh well.
Then, I carefully measured and drilled out 1/4" holes for 1/4" oak dowels. These were epoxied in place after being cross-drilled out for the pivot pin. First set were too short so I cut a new set that were longer to have the clevis point on top of the belly pan. After the pins had cured, I re-attached the belly pan after trimming a hole for the servo to protrude as well as a hole for the pins.
Mounting the pivot bracket I realized that I could get some binding from the clevis so I offset the bracket using a prop bushing. This allows good clearance of the clevis so that it will not bind on the oak dowel.
After testing functionality, I painted all the hardware white and whipped up some hard points for the bomb to rest against. I did not want the bomb to sway side-to-side or interfere with the linkage so a 5-minute design and a couple of 20-minute prints later I was in business. During the printing, I got the bomb painted up a bit too. I used shrink tube over the mount pins to keep paint off them so that the release would not bind.
While this is not PERFECTLY scale, it serves the same function and its the first time I've done, or even seen a functioning trapeze release mechanism. I'll take some time to work on the programming of the release and she will be good to go.