3. Boeing B-29 Super Fortress
The B-29 had a range of over 3,500 miles, an operational ceiling of 31,850 feet and a top speed of 358 mph. It could carry a huge payload of 20,000 pounds of bombs and was armed with 12 .50-calibre machine guns and a 20-mm cannon. The aircraft's design was very advanced. It featured aerodynamic fuselage, and the crew compartment was pressurized and fitted with bullet-proof glass. Used extensively in conventional bombing missions against the Japanese, the B-29 is best remembered for dropping atom bombs on Hiroshima and Nagasaki and thus ending World War II.

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