The Wright brothers made several key contributions to the development of aviation between 1896-1903. Through research and testing models, they solved three main problems: how to generate lift, how to control a flying object along three axes, and how to provide thrust. Between 1901-1902, they tested over 200 wing designs in a wind tunnel. In 1903, they became the first to achieve powered, controlled flight when their Wright Flyer took off at Kitty Hawk on December 17, 1903, marking the beginnings of the aviation age.

1. 1896-1903

2. 2
Contribution of Wright Brothers to
Aviation
• (1899 - 1902) – Research on how things fly.
– literature search to find out the state of
aeronautical knowledge at their time
– read about the works of Cayley, and Langley, and
the hang-gliding flights of Otto Lilienthal
– studied the problems which had been
encountered by previous flyers and they talked
about possible solutions to the problems

3. 3
Contribution of Wright Brothers to
Aviation
• (1901 - 1902) – Tested Theories
– 1901 - built a wind tunnel and developed model-testing
techniques including a balance accurately determine the
lift and drag
– They tested over two hundred different wings and airfoil
models to improve the performance of their gliders.
– Today, NASA engineers at Ames, Langley, and Glenn
Research Centers use sophisticated models and wind
tunnels to study a variety of problems associated with
modern aircraft design

4. 4
(1900 - 1902) – Developed the first flight control
systems
– ideas for control were tested on a series of
unpowered between 1900 and 1902 – Kites to
obtain aerodynamic performance
– flying object had to be controlled about all three
primary axes; roll, pitch, and yaw
– Their aircraft were built with movable surfaces on
the wing, elevator, and rudder
Contribution of Wright Brothers to
Aviation

5. 5
• (1903 - 1920's) - Developed Propulsion Systems
– first to fly a self-propelled, heavier than air
machine
– The thin, high speed propellers which they
designed were based on wind tunnel tests and
were unlike any other propellers being used at
that time
– Between 1903 and 1913 the engine power
increased from 12 horsepower to nearly 75
horsepower
Contribution of Wright Brothers to
Aviation

6. 6
• (December 17, 1903) - The First Flight
• (1904 - 1907) - Flight Development
– continued to perfect their machine with a series
of aircraft built between 1903 and 1905. flight
testing from Kitty Hawk to their home town of
Dayton, Ohio
– new, more powerful aircraft, they were able to
stay aloft for up to a half hour, to fly figure eights,
and to even take passengers up for a ride
Contribution of Wright Brothers to
Aviation

7. Wright Bro. Solved 3 Problems
• How to obtain Lift
• How to Control
• How to generate Thrust

8. 1903 Wright Flyer
• Success of their 1902 Glider
• Planning to invented their first aircraft
• Called Flyer
• Wind Tunnel
• Experiment to determine the best wing shape
• Built the aircraft using wood
• Borrowing from bicycle technology, powered the
twin propellers, which were also made by hand.
• Completed assembly of the Flyer on the 1902

10. BIBLIOGRAPHY
• http://www.wright-house.com/wright-brothers/Wrights.html
WRIGHT BROTHERS
• http://www.newworldencyclopedia.org/entry/Wright_brothers
Wright Brothers Encylopedia
• http://wrightbrothers.info/
The Wright Brothers Biography
• http://www.absoluteastronomy.com/topics/Wright_brothers
Wright Brothers Astronomy
• http://www.wright-brothers.org/
Wright Brothers Contribution In Aviation
Lecturer
• Capt Zulkifli B Mat Ariffin
AMIDEE