flyptk wrote:Until the late 1970s with the rise in oil prices and deregulation basically any plane could make an airline money.
Certainly the Boeing Stratocrusier was harder to make money with then the Constellations, DC-7 and DC-6. Most of the immediate postwar aircraft based on bombers were pretty inefficient. The Lancastrian probably put BSAA out of business due to its tendency to disappear, but not because it a bad plane from a business perspective.
Wow, what a question !
I suspect there was a massive difference in philosophy depending on which side of the Atlantic you are talking.
Post war, the US was already into cheap air travel for the masses, whilst Britain still seemed to be catering for an elite who could afford first class service, and didn't care so much if their craft took three days and 15 fuel stops just to get to Cape Town. Anything was ok just as long as the gin kept flowing.
I believe there was also an agreement during the war that Britain would focus on bombers, and leave transport aircraft to the Americans. That left us at a disadvantage once hostilities had ended. Taking the Lancastrian as an example; it had five crew, but could only squeeze nine passengers into the bomb bay. The Avro York, powered by the same four Merlin engines, and inheriting many other elements from the Lancaster, carried up to 56 passengers.
And then there was yet another offspring from the Lancaster, the Avro Tudor; the aircraft that definitely put BSAA out of business.

Wikipedia wrote:The Tudor I was intended for use on the North Atlantic route. At the time, the United States had the Douglas DC-4 and Lockheed Constellation, which could both carry more passengers than the Tudor's 12, and also weighed less than the Tudor's weight of 70,000 lb
Twelve passengers!
Fortunately it was quickly realised that this was really not good enough, and major design changes were made. But it comes back to my point that British & US philosophy were dramatically different regarding the future of air travel, and that most probably any words of wisdom from time-travellers such as ourselves, would fall on deaf ears here in the UK.
Nothing to see here; move along please.