Smokey Stover
Banned
The B-17 may have been over hyped, both at the time and in popular writing since then. But I like to do analysis based on facts.
The B-24 had several advantages over the B-17, unfortunately it also had a few disadvantages which did not come out until it had bee in service for a while.
as to one aircraft replacing another, that gets very difficult some times.
For the B-17 the big change from the early planes came with the "E" model, This was ordered Aug 30 1940, well before the British had flown a Fortress I let alone used one in combat. It was in production in Sept of 1941 and by Dec 7th over 40 had been built (some were at Pearl harbor) and plans were made to produce it at two additional factories. The Vega plant ( a division of Lockheed ) and at a new factory run by Douglas, it takes time to build,equipe and staff factories and by the time these extra factories came on line they wound up building B-17Fs only 512 "E"s were built which is a small number compared to the overall total.
Now simultaneously the B-24 was going into production at Consolidated/San Diego and at Consolidated/Fort Worth and at Douglas/Tulsa. Ford/Detroit and North American/Dallas were brought in By Jan of 1942. First roll out of planes from these factories were months away.
Trying to swap which factory produced which aircraft could lead to months of lost production not to mention hundreds of tons of parts in the supply chain from subcontractors. B-17 and B-24 used different engines so you either came up with a new model to use up the existing engine manufacturing capability or you changed one or more factories over to make the other engine. IN 1943 alone Chevrolet made over 23,000 P & W R-1830s under licence and Buick made over 24,000 more. Studebaker built over 23,000 Wright R-1820s that year (and almost 50% more in spare parts).
Changing such programs in mid stream takes some awfully good reasons.
I would really like to see some evidence that the B-17E or F cruised 70mph slower than the early ones because of changes to the airplane. SO you have to compare at the same altitude and using the same power settings (RPM and Boost) or close to it. Yes they were slower But the 70mph figure is a bit dubious.
Speeds for large formations were often quite a bit lower than what the aircraft could do when flying alone or with only a few companions.
I would note that weight can play a large part also. And some of the early B-17s the weights they measured the performance at were absurdly low.
I Know the racks were removed but claiming the B-17 was over rated because the Lancaster could (as modified by 2-3 squadrons worth of aircraft) carry a 22,000lb load is not a very good argument.
Ok, i dont mind a bit of intelligent banter. Let me dig out some of my reference notes/stats and i will get back to you.
To be continued....