There is a level device called an inclinometer mounted on the side wall of the radar station. I wondered what it was for thinking it was for levelling the aircraft for weight and balance or harmonizing the guns but that just didn't fit.
When I was installing the radar gear I was reading the controls and I noted the tilt angle of the radar and it was adjustable through 5 degrees up and down. I then thought about its correlation to the bomb and ordnance release. Since the radar op could and often did drop bombs, torpedoes and even fire rockets through the radar, the angle of the release point in relation to the angle of attack made it clear why the inclinometer was at the radar station.
The bombs would be released at a predetermined angle depending on speed, altitude and the ballistics of the bombs. This angle would have been set into the radar and release controls. This was represented as a line on the radar indicator. When the target crossed the fixed line the bombs were released either manually or automatically by the radar and the bombing adapter.
The aircraft will fly at a different angle of attack (the angle of the chord of the wing in relation to the relative wind as it hits the wing) depending on gross weight, speed and other factors. The radar antenna would have been calibrated to be level or true to the longitudinal axis of the aircraft. so when you are on a bomb run the radar op would look at the inclinometer and see what the deck angle was and then adjust the radar tilt accordingly to effectively zero it out.
Being off a degree or two could make a big difference.
I had been looking for an inclinometer for a while when I found out that the original manufacturer that made them in WWII still made the exact part today. I wrote to them and asked if they would donate one of their inclinometers to 062 and they were happy to do so. It came in today:

Too cool and it bolted right up to the bracket I made from the production drawing. In the comparison photo of the radar station below you can see that the bubble is in about the same position of 11 degrees tail low while sitting in the three point attitude. Pretty cool. One more puzzle piece back in place. Only about 10,000 more to go...

Here are a couple of comparison shots of the radar and nav station. I like to check these to see what else needs to be done and there are a lot of things to do for sure.The big stuff is coming along now its the details that need the attention. That is when there is time after all of the airworthiness stuff we need to keep up with.




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Taigh Ramey
Vintage Aircraft, Stockton, California
http://www.twinbeech.com'KEEP ‘EM FLYING…FOR HISTORY!'