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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.
I suggest you get another translator. I do speak a little French and it is saying that essentially the question of losses is controversial and hard to conform, but at least 1000 Luftwaffe aircraft were destroyed in the air by the FAF, A/c destroyed in the air don't include aircraft that landed and were then written off. If you do include those numbers, losses inflicted on the LW by the French begin to climb toward the 1500 mark. What makes it difficult are that LW records are incomplete and we cant be sure who shot down what.
if you are going to use a foreign language source, it pays to have some idea of what you are posting.
This source does appear to be pretty good, though it is not properly referenced. It is possible that it has partisan positions to promote. There are some notoriously right wing French sources these days.....but it seems okay, thats about all i can say in its favour. But even if it is fairly balanced the centrepiece of its positioning is that it wants to challenge the established and accepted numbers. That's interesting and it is certainly not impossible but it is a far cry from proving anything, other than the author believes the numbers are contentious.
According to Peter Cornwell's "The battle of France then and now": between Sep 1939 to June 10th 1940 Luftwaffe lost 2168 aircrafts and about 3710 air crews killed or missing in the west, of which over 1800 were lost after 10 May. These losses do not include losses in Norway.
During 1939–1940, French H-75 pilots claimed around 230 kills. Losses were just 29 aircraft in aerial combat. While making up only 12.6% of the French Air Force single-seater fighter force, the H-75 accounted for almost a 33% of the victories during the 1940 Battle of France.
Anyone reading this thread would think that the French won. Does anyone really think that the H75 had a near 8 - 1 advantage over the Luftwaffe when you consider that lack of radar, organisation and command and control that the French suffered from?.
I should add that I do believe that the H75 was the best plane they had but it wasn't better than the 109E
I cannot agree to this conclusion. Firstly, the BoB was always portrayed in anything I read as the first time Germany had been stopped doing what it wanted to do. The strength of the LW at the start of the conflict, that is, after the Battle of France is stated as it was. There is always a disagreement about numbers but they are broadly similar. Secondly, in the previously quoted victories many were Ju87s, which were Germany's airborne artillery. They may have shot some down even a lot down but they didn't stop the army below doing what it wanted to do. After the first days of the war the Bf 109s were operating at increasing range and so their capacity to escort and protect became reduced. The French (like the B.E.F.) may have had some Stuka parties and other successes but down below their airfields were being over run. Thirdly the Germans didn't care about air losses, Goering was shocked at the reduction in strength of the LW prior to the BoB but he was the man in charge and he had paid no attention to it. The campaigns in Poland, Netherlands, Belgium and France had been a success. To reduce air to air losses with a more conservative approach may well have slowed up things on the ground and created a front over which losses would be much greater and eventual defeat almost certain.The misinformation about LW losses serves the victorious (by that I mean British) post war image, who want to portray the BoB as the pivotal battle in which the LW up to that point won cheap and easy victories over the continent, and were not finally defeated until they met the RAF over SE England. For the germans its convenient as well, because it provides their personas with a victory that they can laud, when if the truth came out the myth of their invincibility would be exposed.
Losses in Poland
Germans admitted they lost 285 planes in aerial combats, shot down by AA defence and lost in the crashes.
Amongst them:
63 recon planes
67 Bf-109
12 Bf-110
78 He-111 and Do-17
31 Ju-87 and Hs-123
12 transportation planes (mostly Ju-52)
22 naval and liaison planes
Moreover 263 or 273 (dependeing of German source) planes were damaged and only 70 of them were capable of repairing. Total losses suffered by the LW over Poland amounted to
The arithmetic suggests the LW suffered 495 unrecoverable losses in or over Poland
Polish losses:
118 fighters (P11 and P7)
32 of them were shot down by fighters, 10 by bombers, 7 by German air defence and 7 by Polish air defence. 4 were destroyed on the ground. It gives total number 60. The remaining 58 were destroyed due to crashes, damaged due to forced landings, damaged and abandoned.
11 PZL-37 "£o¶" and 2 destroyed on the ground
20 PZL-23 "Kara¶"
7 recon planes (3 R-XIII, 2 RWD-8, 2 Fokker F-VIIb)
Polish bombers shot down 13 Bf-109 (5 shot down by PZL-37 and 8 by PZL-23).
1 Bf-109 crashed while it attacked training plane PWS-26
One should add 1 Bf-109 shot down by Cpt. Boles³aw Le¶niewski from 55 eskadra (according to German sources he shot down 2 Bf-109 in a single flight).
There is a mountain of source material to support these numbers.
The Poles were even more outnumbered, also didn't have radar, and their command system fragmented and dislocated by the german attacks. Why is it that they could mount an (ultimately) unsuccessful defence, yet extract such a heavy toll out of the LW, with worse a/c, and the French could not?
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.
The corrected claims might also be 355-500 per French sources. Now what about the 1500 that you also have given as the number of French victories compared to about a 1000 that they claimed?The French fighters might have shot down about 700 a/c, but loss tallies are far more than just those shot out of the sky . to be accurate,it needs include all losses, and many aircraft were lost after they had landed.
Your initial objection was that these (corrected) claims were overclaims. I would agree that claims data made at the time were usually grossly inaccurate, but corrected claims are a bit more reliable. not always, but fairly often, corrected claims are okay.
Norman Franks in FC losses vol. 1 writes ' only 75 Hurricanes losses were directly due to combat in the period May10-21 ' from memory as I no longer have the book at hand.Losses on the ground were probably on the other foot. I haven't read the full account, but according to Terraine, of the 430 hurricanes lost in France and the low countries in May/June 1940, only 80 were lost in air combat. Ive not verified that completely but also
I think its fair to say the French airforce ranged from the ridiculous to the fanatical. But sadly the result was much the same. France upon realizing they were about to be overrun tried to get the RAF to deplete all its air strength in a futile attempt to stop a german invasion that by then was already happening. Records show the French airforce contributed little, and what they did contribute was used in totally the wrong way, not to mention heavily overestimated success wise. I agree that this was a ground war not an aerial war like the bob. And the whole French army/BEF were caught napping by the germans and didnt even realize their mistake until it was too late.
As Stalin said "How the hell did they let them (germany) capture half of europe so easily" Im sure he probably thought it was some kind of ploy against russia itself. And tbh who could blame him!
Peter Cornwell's "The battle of France then and now"