I"ve seen the SR-71 at a couple of museums.....very impressive. I remember the narrator talking about how it "stretches" in flight due to heat,....leaks on the ground. (like in the story below). Wondering if that aircraft was the one with the rear view mirror, outside of the cockpit? I think it was used to check the afterburner? Interesting to find out in this story that it can fly in a stable manner at 156 knots. Cuz as a paratrooper, I had numerous jumps out of a C130 at 140 knots......about 160 mph. I remember when the AF started using the C141 Starlifter, trying to safely jump under 200 mph. Had to add to the static line so jet heat wouldn"t melt the line......circa mid 60s. Joked about the drop zone would be from Alabama to Mississippi! But, hey, we always enjoyed that Southern Hospitality- wherever we landed!
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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