11fan,
What an absolutely stunning, breathtakingly fabulous photo!
Boslandew,
The blue/green lights - prop pitch indicators? I'd have given my right arm to have flown a DC-6/7. From the big turboprops I flew though, I know that a prop has but one aim in life; to achieve fine pitch. The bigger it is, the harder it will try, hence I'd imagine the DC-7 has loads of prop safety devices, controls, synchro devices etc. I think the DC-6/7 had reversing on the props as well.
If you're lucky someone will know. There is a lovely DC-7 flight deck in the Smithsonian, probably a guide somewhere available with a key that explains all.
Now, I'm off to join 11fan's mates website.
Cheers,
BSD.