[DOC] [TLE] Jeopary Questions page 1691 - WHAAAZUUUP?! - TriviaBistro.com [PAR] WHAAAZUUUP?!: Leonardo da Vinci sketched one of these in 1483; Sikorsky 
produced the first practical one in 1939  LEGENDS: Calamity Jane boasted that
... [DOC] [TLE] A History of the Helicopter | Prime Industries [PAR] Aug 31, 2015 ... Fascinated by the idea of man flying, the great Leonardo da Vinci also ... It was 
one of these toys that reputedly inspired the American Wright brothers, ... 2 that 
made history because it was used successfully to transport a person. ... Russian-
born Sikorsky did not invent the first helicopter, as is clear from the... [DOC] [TLE] Helicopter - Wikipedia [PAR] A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. 
This allows the helicopter to take off and land vertically, to hover, and to fly 
forward, backward, and laterally. These attributes allow helicopters to be used in 
congested or isolated areas ... It was not until the early 1480s, when Leonardo da 
Vinci created a design for... [DOC] [TLE] History of aviation - Wikipedia [PAR] Leonardo da Vinci's Ornithopter design. The history of aviation has extended 
over more than two thousand years, from the earliest forms ... The Greek legend 
of Daedalus and Icarus is one of the earliest known, others originated from ... 
Most notable of these was Leonardo da Vinci, although his work remained 
unknown until... [DOC] [TLE] How does a helicopter work? - Explain that Stuff [PAR] Aug 8, 2016 ... Photo: The US Navy's largest helicopter: the CH53-E Sikorsky Super Stallion. ... 
Each rotor blade (1) is connected to the hub (2) and rotating mast by a feathering 
hinge .... This produces more lift on the left, steering the chopper to the right. .... 
1483: Italian inventor Leonardo da Vinci (14521519) designs a... [DOC] [TLE] Volume 4 Issue 1 - The Vietnam Project - Texas Tech University [PAR] They have one of the world's largest collections of helicopters. ... These oral 
histories will build upon the archival holdings of B Troop and provide an .... In 
1483, Leonardo da Vinci designed drawings of an aerial screw he called the .... 
The first practical flight of a helicopter in the United States took place in 1939, 
when... [DOC] [TLE] [1.0] European Helicopter Pioneers - AirVectors [PAR] Apr 1, 2015 ... The toy eventually made its way from China to Europe, where it appeared in ... 
Not long after that, in 1483, Leonardo da Vinci illustrated a more sophisticated ... 
The introduction of a practical internal combustion engine by Niklaus ... Yuriev's 
helicopter was unsuccessful, but it was one of the first to feature a... [DOC] [TLE] Hispanick inventions - Google Groups [PAR] Aug 27, 2003 ... The earliest known mention of a rotor-powered flying machine ... scientist 
Leonardo da Vinci sketched a design for a helicopter. It had a large, [DOC] [TLE] Development Of Helicopters - Scribd [PAR] Renaissance visionary of Leonardo da Vinci shows what is a basic ... His sketch 
of the"aerial-screw" or "air gyroscope" device is dated to 1483 but it ... available at 
the time were steam engines, and these were much too heavy to allow for 
successful ... One of the earliest studies of the thermodynamic principles was by 
Sadi... [DOC] [TLE] The Invention Of The Helicopter - FAQs.org [PAR] Aug 1, 2002 ... Not long after that, in 1483, Leonardo da Vinci illustrated a more sophisticated ... 
When a rotary-wing aircraft spins its rotor in one direction, the machine itself .... It 
was the first practical, fully-controllable helicopter to take to the air. .... funding to 
Flettner in 1938, and the Fl-265 made its first flight in May 1939. [DOC] [TLE] HELICOPTERS [PAR] first flew just over sixty years ago, they are without question one of the most ... 
years later the fertile brain of Leonardo da Vinci deduced that man could not fly 
by... [DOC] [TLE] Principles of helicopter aerodynamics | Ahilan Appar - Academia.edu [PAR] First published 2000 Printed in the United States of America Typeface Times 
Roman 10/12 pt. ... xxiii

Question: Leonardo da Vinci sketched one of these in 1483; Sikorsky produced the first practical one in 1939
Answer: helicopter