Jaw and Fire-Control

Studs have been added to the upper hull to support fuel, ignition, jaw and antenna. Terminals have been added to the actuators. An antenna has been formed of 0.059" spring stainless, mounted and wired with copper braid. The Futaba propulsion receiver is mounted as close as possible.

We housed the igniter and a 5 V regulator in a box made of some sort of copper-clad PTFE/Woven glass PCB material. Partly because it was material available, partly for wiring and mounting and partly for noise. The box has been filled with urethane foam to seal while controlling weight. It will be mounted and wired in CW36. This is a 1 A regulator on a 2 A device so it was shunted with a 28 Ω resistor just to get it to work. The TIP112 is only rated at 2 A but it should do OK. It only needs to work a few times.

A float hangar was made of 0.059" spring stainless (becoming a favorite) and covered with PTFE spaghetti. It drops quickly from the jaw regardless of initial position.

Propulsion

The Trinket Pro's bootloader has been removed to improve boot speed. Interestingly the installed bootloader was 3465 bytes while the Piruett program is only 1723. Although, compared to Arduino's simple "Blink" at 1030 bytes, they are still very small for what they do.

Champacity

It looks part Tanystropheus and part Gungan. The head is made of a license plate and the eyes are made of ping-pong balls lit by red LEDs. They will be wired CW36.

Journal CW36