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The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber, the B-17 was used primarily in the European Theater of Operations and dropped more bombs than any other aircraft during World War II.
In 1939, total aircraft production for the US military was less than 3,000 planes. By the end of the war, America produced 300,000 planes. No war was more industrialized than World War II. It was a war won as much by machine shops as by machine guns. [4]
US UL = 100 mg/day; EU UL = 25 mg/day: See Megavitamin-B 6 syndrome for more information. Vitamin B 7: None: No toxicity known. Folate 1 mg/day [26] Masks B 12 deficiency, which can lead to permanent neurological damage. [26] Vitamin B 12: None established [27] Skin and spinal lesions. Acne-like rash (causality is not conclusively established ...
A B-17 on display at the Arlington Municipal Airport in 2019. Bell P-63 Kingcobra The single-engine Bell P-63 Kingcobra was never used in combat by the United States, according to the National ...
Prior to the Japanese Attack on Pearl Harbor on Sunday, 7 December 1941, the 19th Bombardment Group had 35 B-17s in the Philippines.By 14 December, only 14 remained. Beginning on 17 December, the surviving B-17s based there began to be evacuated south to Australia, and were then sent to Singosari Airfield, Java in the Dutch East Indies (modern Indonesia) on 30 Decemb
The Boeing B-17 Flying Fortress is an American four-engine heavy bomber used by the United States Army Air Forces and other Allied air forces during World War II. Forty-five planes survive in complete form, [ 1 ] [ a ] including 38 in the United States with many preserved in museum displays.
This single 500 lb (230 kg) general-purpose bomb represented one quarter of one percent of the 376 bombs dropped over Yawata on that mission. It took 108 B-17 bombers, crewed by 1,080 airmen, dropping 648 bombs to guarantee a 96 percent chance of getting just two hits inside a 400 x 500 ft (150 m) German power-generation plant.
How much vitamin D do you need per day? The recommended daily intake of vitamin D for healthy people varies by age, per the NIH. Children (1–18 years): 15 mcg or 600 IU.