The instrument panel was attached with 3/16" nut plates riveted to a .063" thick piece of precured NEMA electrical insulator fiberglass. That in turn was bonded to the instrument frame. I wrung out all of the circuits and checked the function. The switch on the right is the Engine kill. The switch at the bottom is the panel power and the potentiometer to the right of the power switch is the LED dimmer control. The center space in the panel will eventually have an audio -Vario. The lower space above the dimmer control will be a holder for my I- Phone. I found a cool App for the I Phone that has a moving aeronautical chart display. its synced to the phones GPS. pretty damn cool!! The world lost another Thomas Edison when poor Steve Jobs died.
So here is what I finally came up with for a removable canopy hinge. I wracked my brain for a few days on this one. I have two design problems to solve. I need to be able to remove the canopy as a normal course of operation and I need to get rid of it if I have an emergency in flight. The part in my hand is permanently attached to to the canopy. The hinge, hinge plate and the hinge pin are permanentlyy attached to the fwd Turtle deck at the location of the previous hinge.
This shows the location of a 5/16" spring pin. The loading is reacted Heel to toe, between the upper flange and the pin. In flight there is about 100 lbs of lift load on the canopy, this lift load is taken by the spring pin. The pin passes through the retainer plate, hing plate and the last bulkhead, which has a wood bearing block in the canopy. A lanyard is attached to the spring pin and it exits out of the instrument panel on the R/H side (I am right handed) The emergency lanyard has a 3 inch relief loop that is attached to the instrumentation cable. One hard pull will release both the canopy and the plug. For ground operation, the lanyard is pulled only nought to release the spring pin.