2. Aircraft

IWM Duxford

Ross and I had a superb day at the Imperial War Museum Duxford 20 odd years after our first visit. The sound of warbirds flying all day just added to the atmosphere. The vehicles in the Land Warfare building are in the Military Vehicles folder. 10/5/2022
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    The SR-71 operated at high speeds and altitudes (Mach 3.2 and 85,000 feet), allowing it to outrace or entirely avoid threats. If a surface-to-air missile launch was detected, the standard evasive action was simply to accelerate and outpace the missile. Looking at the rear of the airframe, the engines have been removed and are displayed below.
    The SR-71 was powered by two Pratt & Whitney J58 (company designation JT11D-20) axial-flow turbojet engines. The J58 was a considerable innovation of the era, capable of producing a static thrust of 32,500 lbf (145 kN). The engine was most efficient around Mach 3.2, the Blackbird's typical cruising speed. At take-off, the afterburner provided 26% of the thrust. This proportion increased progressively with speed until the afterburner provided all the thrust at about Mach 3.
    Steelwork from the World Trade Center. This large piece of twisted and rusted steelwork is from the collapsed World Trade Center in New York. Comprising of beams from the external walls of the building, this steelwork was originally located somewhere around one of the two impact zones.