Flying Fortress | In the mid-1930s engineers at Boeing suggested the possibility of designing a modern long-range monoplane bomber to the U.S. Army Air Corps. In 1934 the USAAC issued Circular 35-26 that outlined specifications for a new bomber that was to have a minimum payload of 2000 pounds, a cruising speed in excess of 200-MPH, and a range of at least 2000 miles. Boeing produced a prototype at its own expense, the model 299, which first flew in July of 1935. The 299 was a long-range bomber based largely on the Model 247 airliner. The Model 299 had several advanced features including an all-metal wing, an enclosed cockpit, retractable landing gear, a fully enclosed bomb bay with electrically operated doors, and cowled engines. With gun blisters glistening everywhere, a newsman covering the unveiling coined the term Flying Fortress to describe the new aircraft. After a few initial test flights the 299 flew off to Wright Field setting a speed record with an average speed of 232-mph. At Wright Field the 299 bettered its competition in almost all respects. However, an unfortunate crash of the prototype in October of 1935 resulted in the Army awarding its primary production contract to Douglas Aircraft for its DB-1 (B-18.) The Army did order 13 test models of the 299 in January 1936, and designated the new plane the Y1B-17. Early work on the B-17 was plagued by many difficulties, including the crash of the first Y1B-17 on its third flight, and nearly bankrupted the Company. Minor quantities of the B-17B, B-17C, and B-17D variants were built, and about 100 of these aircraft were in service at the time Pearl Harbor was attacked. In fact a number of unarmed B-17s flew into the War at the time of the Japanese attack. The German Blitzkrieg in Europe resulted in accelerated aircraft production in America. The B-17E was the first truly heavily armed variant and made its initial flight in September of 1941. B-17Es cost $298,000 each and more than 500 were delivered. The B-17F and B-17G were the truly mass-produced wartime versions of the Flying Fortress. More than 3,400 B-17Fs and more than 8,600 B-17Gs would be produced. The American daylight strategic bombing campaign against Germany was a major factor in the Allies winning the War in Europe. This campaign was largely flown by B-17 Flying Fortresses (12,677 built) and B-24 Liberators (18,188 built.) The B-17 bases were closer to London than those of the B-24, so B-17s received a disproportionate share of wartime publicity. The first mission in Europe with the B-17 was an Eighth Air Force flight of 12 B-17Es on August 12, 1942. Thousands more missions, with as many as 1000 aircraft on a single mission would follow over the next 2 ½ years, virtually decimating all German war making facilities and plants. The B-17 could take a lot of damage and keep on flying, and it was loved by the crews for bringing them home despite extensive battle damage. Following WW II, B-17s would see some action in Korea, and in the 1948 Israel War. There are only 14 flyable B-17s in operation today and a total of 43 complete airframes |
Me163 | Rocket-powered Me-163 Comet, probably the most technically advanced aircraft of the second world war. Out of necessity, German aircraft designers compressed decades of development time into years or often months. Although it did not play a significant role in combat, the 163 represented a radical departure from conventional aircraft design. With a length of only 19 feet, the diminutive 163 was powered by a liquid fuel rocket engine. The production models of the Comet were fueled with a mixture of C-Stoff (a mixture of 57% methyl alcohol, 13% hydrazine hydrate, and 13% water) and T-Stoff which was 80% hydrogen peroxide. Almost 5000 pounds of fuel were carried, but the Comets engine had a burn time of only a few minutes. Many technological breakthroughs were required for the Comet program to succeed. Because space and weight were so critical, use of a conventional landing gear was not possible. Instead the 163 utilized a simple dolly consisting of an axle and two wheels which was jettisoned upon takeoff. For landing the 163 utilized a sturdy retractable skid with hydraulic shock absorbers. The Comet was also not particularly effective in combat despite its 596-MPH top speed and twin canon. The aircraft had only about 150 seconds of power once it reached altitude. Thereafter it became a very fast glider. Allied pilots learned to exploit the 163s vulnerability during landing. Rudolf Opitz, the Chief Test Pilot on the 163, was a central figure in the development and testing of the 163. Rudy met Herman Goering once at a special airshow for high ranking military and government officials. The few remaining 163s to survive the War are due to the efforts of Rudy to preserve this unique aircraft for aviation posterity.
Of all the Komets lost, 80% were in take off and landing accidents, 15% due to loss of control or fires, and the remaining 5% to Allied aircraft. Only one front line squadron was ever equipped with the Komet. They claimed 9 aircraft for the loss of 14.
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