The Galaxy‘s anniversary the other day reminded me Lockheed’s unsuccessful prequel of the 1940s. Started in 1942, the Constitution was conceived by request of the US. Navy and the Pan Am company both looking a giant leap in range and load capacities. The design chosen employed a huge double-deck fuselage aircraft powered by four P & W R-4360 Wasp Majors, the more powerful engines available. It was not enough. First flown in 1946, the R6V turned out to be seriously underpowered even when re-engined with a more powerful variant of the Wasp Major. Worse, the engines also suffered cooling issues. Due to those problems, just two prototypes were produced and they only saw a brief service with the US. Navy until 1953. Pan Am’s interest had evaporated long before.
Ship No.1 (BuNo 85163) was employed in testing RATO (rocket assisted take-off) operations. It sure needed it at max gross weight. Those minute-looking engines on such an humongous aircraft….