Who invented the tiltrotor?
George Lehberger
Concrete ideas of constructing vertical take-off and landing (VTOL) aircraft using helicopter-like rotors were pushed further in the 1930s. The first design resembling modern tiltrotors was patented by George Lehberger in May 1930, but he did not further develop the concept.
Who invented the gas powered airplane?
Wilbur and Orville Wright
On December 17, 1903, Wilbur and Orville Wright made four brief flights at Kitty Hawk with their first powered aircraft. The Wright brothers had invented the first successful airplane.
Who invented the underwater propeller?
Josef Ressel designed and patented a screw propeller in 1827. Francis Pettit Smith tested a similar one in 1836. In 1839, John Ericsson introduced the screw propeller design onto a ship which then sailed over the Atlantic Ocean in 40 days.
When was the Douglas DC-3 invented?
First flown in 1935, the Douglas DC-3 became the most successful airliner in the formative years of air transportation, and was the first to fly profitably without government subsidy. More than 13,000 DC-3s, both civil and military versions, U.S. and foreign built, were produced. Many are still flying.
Who developed the Osprey?
Bell Boeing V-22 Osprey
| V-22 Osprey | |
|---|---|
| National origin | United States |
| Manufacturer | Bell Helicopter Boeing Defense, Space & Security |
| First flight | 19 March 1989 |
| Introduction | 13 June 2007 |
When was the Osprey introduced?
Technical Specifications
| First flight | March 19, 1989 |
|---|---|
| Model number | 907 |
| Classification | Tiltrotor transport helicopter |
| Rotor diameter | 38 feet |
| Span | 83 feet 10 inches (rotor included) |
How were propellers invented?
The first versions of the propeller were derived from a rotating screw design, which was first invented by the ancient Greek scientist Archimedes in 200 BC. These early screws were used by ancient civilizations to lift water from wells with much less effort.
Who invented the sea scooter?
The Aqua scooter was invented in 1967 by East German chemical engineer Bernd Böttger. Böttger developed his vehicle in order to escape the country across the Baltic Sea to Denmark. Today, it is produced commercially by AquaScooter Inc.
When was the last DC-3 manufactured?
1942
Civilian DC-3 production ended in 1942 at 607 aircraft. Military versions, including the C-47 Skytrain (the Dakota in British RAF service), and Soviet- and Japanese-built versions, brought total production to over 16,000.