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  1. Here is what it will look like from the backside of the movement.
  2. As with any vintage mechanical watch movement, make sure you get it overhauled and lubricated by your local watchmaker or clockmaker. Even if it runs they have enough torque to run even when the oil has gone dry and it just wears the pivots (axles) down until they get so thin they finally snap off.
  3. Thanks for the clarification yes it is a good target list. I have already ruled out some but not all on the list. I always assumed spacecraft just used absolute pressure gauges in psi since expressing cockpit pressure as a height measurement would be rather meaningless but I really don't know..
  4. NorthCoast are you saying it was NOT found in any of those instrument panels or it WAS found? Thanks.
  5. I looked through the pics from my last visit to Pima and only have this terrible blocked partial view but it does seem to match the sheetmetal stamping shape on the front lower portions. You can probably match up some more features if you compare to your seat from the side. Next time I go I will get you some better shots without tourists in the way. Sorry was not focused on the seat that visit. Regards, Frank
  6. I decided to look into the X-15 flight manual. Looks like a match. At least I found one type of aircraft that used it perhaps it found its way into other high altitude craft as well. Let me know if you ever see it anywhere else.
  7. Update: The museum of flight research team was unable to discover the origins of the unit. They even wrote to Aerosonic and they didn't know what it was for either. In the meantime I bought a standard 50k unit for comparison and it is the same size.
  8. No later dates on the belts. So the story keeps going a bit further if the USN took it from mothball, I wonder if it got used for target practice?
  9. Ron thank you for adding to this history and putting me on to the serial number. I was stumped looking online as I kept trying to find XX-6231 and kept coming up empty in the AF serial number lists. I didn't realize Lockheed kept a separate serial number sequence. So this confirms an original 1951 build date and helps explain the added features that came at a later refurb. I was then able to find out the final disposition is here in AZ. T-33A-1-LO s/n 51-6899 *1954: USAF 437th FIS (564th ADG). *1/1965: Put into storage at the AMARC bone yard.
  10. Thanks for the U-2 info 2Ban... Is the manual linked online? I found the SR-71 manual and it specifically refers to a 50K cabin altimeter but who knows if it was not edited. As for the U-2 perhaps they were more concerned about it since it was the first to get up there and the 80k would still make sense, my corvette speedo goes to 200mph but alas, it won't quite reach it!
  11. I will keep an eye open for the parachute assembly thanks for the info. I cleaned it up and searched every inch and found the nameplate. I think the T-33A-1-LO means this is from the first block of T-33A aircraft. Not sure exactly how to interpret the rest of the plate markings was it modified in Jan 58?
  12. Is it possible that the real gauges may have been 80,000 ft units in the SR71? One could assume that if you did not want anyone to be sure how high your plane flew then a one-handed 80,000 ft cabin pressure altimeter would have been a dead giveaway. For pictures and displays then it would have been desirable to swap in the standard unit displaying 50,000 ft. The main three handed altimeter would not need to be swapped out because the upper limit display is always 99,999. That could explain why all the display cockpits in the museums look like this one. The manuals are declassified
  13. Thanks northcoast for the clue links and for your detailed observations from the low-res pictures. I think you are right about the belts being added later. I was confused by the gas line to the lap belt buckle since that implies a separate and timed charge that was anachronistic. Now it makes more sense. No tail numbers anywhere and no dataplate but there are a few empty rivet holes here and there. Some part numbers survive on individual components like the jackscxrew motor and the up/down switch.
  14. Excellent question but it is surprisingly very sterile with only the manufacturer and some cryptic temporary markings but no model number anywhere. Here is a picture of the backside.
  15. Here are a couple of pics of my T-33 seat which is fairly complete. I am going to keep it intact instead or stripping and repainting. I think this is pretty early it does not have a seat kicker. The shoulder belt stamps are between 1959 and 1962 but I don't know if that is significant. The seat cushion reads Weber Aircraft Corp. 71415 but since Weber is defunct i have not been able to find any production records to know what year it was made. If anyone has a manual or any technical specs on this I would love to have a copy. Also if anyone knows where to get a dummy catapult or initia
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