In the early 1940s what were the major technical barriers to building aircraft with pressurized cockpits and fuselages? The structural stress/design, fabrication problems, materials and weight, seals, compressors/turbochargers?
In the early 1940s what were the major technical barriers to building aircraft with pressurized cockpits and fuselages? The structural stress/design, fabrication problems, materials and weight, seals, compressors/turbochargers?