Last B-52's were the H models from 1960 and 1961. They were supposed to be gone 30 years ago but they don't appear to be going anywhere soon. My first Assignment in the Air Force was with the 410BMW at K.I. Sawyer AFB in upper Michigan. The week I in-processed someone explained a few things- the B-52 was designed for a 2,000 hour service life, the lowest time bird we had on the field was north of 4,100 hours. While at Sawyer I saw many firsts for the wing the first all girl crew on a KC-135 first launches where the aircraft was older than all the crew members (KC-135 & B-52) This was in 1985, those birds now have to be at 6,000 plus hours. In the 80's we had "holes" in the birds, 100 flying B-52s but we were short on some parts so all 100 couldn't be flown at once. The Air Force has a PDM (Programmed Depot Maintenance) system where all aircraft were rotated through an Air Logistics Center for major maintenance. When a bird arrived for maintenance some parts where removed and installed on the next bird to leave. One part I was familiar with was control yokes, over the years we broke a few. Eventually we used up all the spares purchased with the aircraft, so they would pull control yokes from the newly arrived PDM birds to install in the completed PDM birds. When I was in we thought it was funny some guys were flying the same aircraft their fathers did, now I can imagine we could find 3rd generation crew members, young crew members flying the very same tail numbers their grandfathers and fathers did. The B-52, KC 135 and C-130 all represent a time when the best stuff in the world came from the USA
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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