Scott WRG Editor wrote:
Suppose England fell in 1940 to the Nazi's. How do you think the development of American aircraft, specifically fighters would have been effected? Why?
I'm not sure that the Germans would have had the resources to mount an invasion of Britain. Look at what it took on D-Day. The Germans were stretched pretty thin as it was, and were wasting valuable resources on the bombing of London.
But to answer your question, when Britain fell, in my opinion the US would have had more time to develop aircraft as there would have been no near-term threat for the Germans to invade the US. Without the P-51 and the Merlin, I think that the P-38, P-40, and P-47 would have been further developed with additional emphasis placed on a turbocharger or a multi-stage supercharger for the P-40. The laminar flow wing had already been under development, and would have likely been adapted for use on other aircraft. Conceptually, I'm sure that North American had been thinking of the Mustang- even before the British got involved, so it might have come about anyhow.
Of course a few Merlins would have made it over here, so maybe they would have been license built anyway and/or the two stage supercharger would have been sooner adapted to the Allison.
More assets could have been alloted to the war with Japan, so maybe the European war would have taken a second seat to the Pacific war.
There would have been more development of ultra-long range bombers.
The same problems the Germans would have had invading the US would then have been true for us during D-Day. Maybe more emphasis would have been put on landing craft and amphibious tanks as well. The Hughes Hercules would have been needed to carry the troops and equipment!
Here is a question for you:
If the Germans took Britain, where would D-Day have then been (if at all)? Was there a good place to group assets in preparation for the invasion, or would the invasion have been staged from New York City? Not much of a chance for surprise then!