Originally posted by nake13
reply to post by sy.gunson
Hitler did become determined to hit at the USA,leading to the "Amerika Bomber" project.
This project ranged from fairly conventional aircraft such as the Messerschmitt Me 264 ,4 engined bomber which at 69 feet long was the same length as
the RAF's Avro Lancaster heavy bomber,however,the Me 264 had a wingspan of 150 feet,much about the same as the B-29.The Me 264 was actually flown, 2
prototypes having been built one with Junkers Jumo inline engines and the other withBMW radials.the aircraft had a projected range of 10,000 miles
with a 4,000 pound bombload,but was never proceeded with.
Other Amerika bomber concepts included a Ramjet powered bomber developed by the Horten Brothers,famous for producing the worlds first tailless jet
stealth fighter,this aircraft was designed to be built with commonly available materials and the engines were essentially uprated Fiesler F103(V1)
flying bomb engines,again this project was not proceeded with,however the Allies discovered a wooden mock up of the aircraft when they entered the
Horten factory at the war's end.
edit on 21-2-2012 by nake13 because: spelling
Thanks Nake13, the Amerika bomber concept fascinates me too. Efforts to build a conventional long range bomber began in 1942 with a requirement from
RLM and culminated in prototypes during 1943 of the four engined Me-264 and the six engined Ju-390.
The Me-264 had the range for the mission but with only a 1,500 kilogram bomb load and at that from a 2,400 metre runway. It could and did at times use
hydrogen peroxide rocket assisted take off but this was deemed too dangerous for operational use at maximum take off weight (should one RATO fail, or
detach). It was underpowered and had development continued it would have either become a six engined aircraft, jet powered or have gained pusher turbo
props developed by the Swiss firm Brown Boveri und Cie.
Although hotly debated I am personally satisfied that at least one of the two Ju-390 flown made a successful flight to New York and back in early
February 1944. It had the range/endurance for this return transatlantic flight flight with a 10,000 kg payload. In the bombing role however because it
was designed initially from a transport aircraft there was no accommodation for bomb load, so the proposal was to attach three parasite Me-328
fighters to press home the final attack. the Ju-390 had two main drawbacks.
1) Engine fuel consumption rose dramatically if it climbed above 21,000 feet
2) It flew extremely slow and encountered wing flutter in fast turns
3) Although wings were strong enough for long range flight, they were not strong enough for the extra burden of parasite fighters
Nazis found in 1944 they had one aircraft underpowered with too little payload and another with the range and payload but unable to deliver it's
burden. Manufacturers of conventional aircraft were pitted against designers of the V-2 rocket, Dr Wolff Trommsdorff with his ramjet cruise missile
and developers of the Silver Bird antepodal bomber launched from a ski ramp.
The antipodal bomber's ski ramp in France attracted so much attention that it was abandoned after a huge concrete path was built for it.
For the Trommsdorff D-6000 lack of suitable launch aircraft to carry it's 9000kg weight to 32,000 feet for launch was the overriding issue. A late
solution appears to have been some sort of proposal to launch it horizontally on a ski ramp, or vertically at the front of an A-4 rocket.
Late in the war a winged V-2 called the A-4b emerged and 14 were test flown. A memorandum identifies that the 15th prototype winged V-2 was
re-designated as the A-4c. One clue is that solid rocket boosters were intended to be tested at Peenemunde in December 1944 strapped around the base
of an A-4 with no less than ten such Fernrakete 35 boosters.
The A-9/10 which you mentioned was first proposed by Von Braun in October 1940 before Germany was even at war with USA.
The original A9 was shaped like a paper dart however the shape caused too much aerodynamic flutter so a later revival of the A-9 emerged with more
conventional swept back wings.
Some years ago a gentleman came forward to advise that he was one of three Nazi astronauts and successfully fired into space atop an A-9/A