The Wright Flyer III was the third powered
aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines ...
by the
Wright Brothers, built during the winter of 1904–05.
Orville Wright made the first flight with it on June 23,
1905
As the second year of the massive Russo-Japanese War begins, more than 100,000 die in the largest world battles of that era, and the war chaos leads to the 1905 Russian Revolution against Nicholas II of Russia (Shostakovich's 11th Symphony i ...
. The Flyer III had an airframe of spruce construction with a wing
camber
Camber may refer to a variety of curvatures and angles:
* Camber angle, the angle made by the wheels of a vehicle
* Camber beam, an upward curvature of a joist to compensate for load deflection due in buildings
* Camber thrust in bike technology
* ...
of 1-in-20 as used in
1903, rather than the less effective 1-in-25 used in
1904
Events
January
* January 7 – The distress signal ''CQD'' is established, only to be replaced 2 years later by ''SOS''.
* January 8 – The Blackstone Library is dedicated, marking the beginning of the Chicago Public Library system.
* ...
. The new machine was equipped with the engine and other hardware from the scrapped
Flyer II and, after major modifications, achieved much greater performance than Flyers
I and II.
Design and development
The 1905 flyer was made stronger, more durable, and with a longer tail to provide better directional stability and control. A larger
cylinder bore
In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder.
Engine displacement is calculated based on bore, stroke length and the number of cylinders:
displacement =
The stroke ratio, determined by dividing the bore by ...
engine provided more power, while a more effective leading edge, and efficient propellers, improved performance. The propeller blades were made wider and thinner, while according to
Harry Combs, "...adding a backward sweep to the blades, calculated precisely to avoid the pressures of flight and to keep the blades free from distortion." Other modifications included vertical rather than horizontal cylinders for its 35-horsepower engine.
[
As initially built, the Flyer III looked almost the same as its predecessors, and offered equally marginal performance. Orville suffered minor injuries in a serious nose-dive crash in the machine on July 14, 1905. When rebuilding the airplane, the Wrights made important design changes that solved the stability problems of the earlier models.] They almost doubled the size of the elevator
An elevator or lift is a wire rope, cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or deck (building), decks of a building, watercraft, ...
and rudder
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other vehicle that moves through a fluid medium (generally aircraft, air or watercraft, water). On an aircraft the rudder is used primarily to ...
, and moved them about twice the distance from the wing
A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is expres ...
s. They added two fixed half-moon shaped vertical vanes (called "blinkers") between the elevators (but later removed), and widened the skid-undercarriage which helped give the wings a very slight dihedral.
They disconnected the rear rudder of the rebuilt Flyer III from the wing-warping
Wing warping was an early system for lateral (roll) control of a fixed-wing aircraft. The technique, used and patented by the Wright brothers, consisted of a system of pulleys and cables to twist the trailing edges of the wings in opposite direc ...
control, and as in most future aircraft, placed it on a separate control handle. They also installed a larger fuel tank, and mounted two radiators on front and back struts for extra coolant to the engine for the anticipated lengthy duration flights.
When testing of Flyer III resumed in September, improvement was obvious. The pitch instability that had hampered Flyers I and II was brought under control. Crashes, some of which had been severe, no longer occurred. Flights with the redesigned aircraft started lasting over 20 minutes. The Flyer III became practical and dependable, flying reliably for significant durations, and bringing its pilot back to the starting point safely, and landing without damage.
On 5 October 1905 Wilbur made a circling flight of in 39 minutes and 23 seconds, over Huffman Prairie
Huffman Prairie, also known as Huffman Prairie Flying Field or Huffman Field is part of Ohio's Dayton Aviation Heritage National Historical Park. The 84-acre (34-hectare) patch of rough pasture, near Fairborn, northeast of Dayton, is the place w ...
, longer than the total duration of all the flights of 1903 and 1904
Events
January
* January 7 – The distress signal ''CQD'' is established, only to be replaced 2 years later by ''SOS''.
* January 8 – The Blackstone Library is dedicated, marking the beginning of the Chicago Public Library system.
* ...
. On 19 October 1905, the brothers wrote in a third letter to the U.S. War Department
The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army, a ...
, "We propose to sell the results of experiments finished at our own expense."[
]
Flying at Kill Devil Hills
To keep their knowledge from falling into competitors' hands, the Wrights stopped flying, and disassembled the airplane on November 7, 1905.
They returned to Kitty Hawk in May of 1908 to flight test their modified 1905 flyer, which they equipped with upright hand controls and seats for the pilot and passenger. They were required by the Signal Corps to produce an airplane "capable of carrying two men and sufficient fuel supplies for a flight of 125 miles, with a speed of at least 40 miles an hour." They started flying on 6 May, were first witnessed flying by correspondents on 11 May, and flew their first passenger on 14 May.[
On May 14, 1908, Wilbur flew mechanic Charles Furnas (1880–1941) in 29 seconds, making him the first airplane passenger. The same day, Orville also flew with Furnas, this time in 4 minutes 2 seconds. Orville's flight with Furnas was seen by newspaper reporters hiding among the sand dunes; they mistakenly thought Wilbur and Orville were flying together. He is one of the few people to fly with both Wright brothers (their sister ]Katharine
Katherine, also spelled Catherine, and other variations are feminine names. They are popular in Christian countries because of their derivation from the name of one of the first Christian saints, Catherine of Alexandria.
In the early Christ ...
being another).
Later that day, Wilbur was flying solo when he moved one of the new control levers the wrong way and crashed into the sand, suffering bruises. The Flyer's front elevator was wrecked, and the practice flights ended. Due to deadlines for their upcoming public demonstration flights in France and Virginia, the Wrights did not repair the airplane, and it never flew again.
Survivors
The Wright Flyer III was left in its damaged condition in the North Carolina hangar. In 1911
A notable ongoing event was the Comparison of the Amundsen and Scott Expeditions, race for the South Pole.
Events January
* January 1 – A decade after federation, the Northern Territory and the Australian Capital Territory ...
, the Berkshire Museum
__NOTOC__
The Berkshire Museum is a museum of art, natural history, and ancient civilization that is located in Pittsfield in Berkshire County, Massachusetts ( United States).
History
The Berkshire Museum, founded by local paper magnate Zenas ...
of Pittsfield, Massachusetts
Pittsfield is the largest city and the county seat of Berkshire County, Massachusetts, United States. It is the principal city of the Pittsfield, Massachusetts Metropolitan Statistical Area which encompasses all of Berkshire County. Pittsfieldâ ...
, through one Zenas Crane, obtained most of the components from both the abandoned Flyer and the 1911 Wright glider, but never assembled or exhibited them. The parts of the 1905 aircraft remained in Massachusetts for almost forty years, until Orville requested their return in 1946
Events January
* January 6 - The 1946 North Vietnamese parliamentary election, first general election ever in Vietnam is held.
* January 7 – The Allies recognize the Austrian republic with its 1937 borders, and divide the country into f ...
for the Flyer's restoration as a central exhibit at Edward A. Deeds
Edward Andrew Deeds (March 12, 1874 – July 1, 1960) was an American engineer, inventor and industrialist prominent in the Dayton, Ohio, area. He was the president of the National Cash Register Company and, together with Charles F. Kettering, ...
' Carillon Park in Dayton, Ohio
Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Day ...
.
Some Kitty Hawk residents also possessed pieces of the 1905 airplane. Deeds and Orville also obtained many of these for the restoration. At the end of the 1947–1950 restoration process, craftsmen estimated that the 1905 aircraft retained between 60 and 85% of its original material. The 1905 airplane is now displayed in the Wright Brothers Aviation Center at Carillon Historical Park. The aircraft and display are part of the Dayton Aviation Heritage National Historical Park
Dayton Aviation Heritage National Historical Park is a United States National Historical Park in Dayton, Ohio that commemorates three important historical figures— Wilbur Wright, Orville Wright, and poet Paul Laurence Dunbar—and the ...
. The restored 1905 Wright Flyer III is the only fixed-wing aircraft to be designated a National Historic Landmark
A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed ...
.
Found artifact
A historic missing piece of the Flyer III, thought to be a piece of the original ''Wright Flyer
The ''Wright Flyer'' (also known as the ''Kitty Hawk'', ''Flyer'' I or the 1903 ''Flyer'') made the first sustained flight by a manned heavier-than-air powered and controlled aircraft—an airplane—on December 17, 1903. Invented and flown b ...
'', turned up in 2010
File:2010 Events Collage New.png, From top left, clockwise: The 2010 Chile earthquake was one of the strongest recorded in history; The Eruption of Eyjafjallajökull in Iceland disrupts air travel in Europe; A scene from the opening ceremony of ...
in the hands of Palmer Wood, whose uncle, Thomas, had given him the piece in the 1960s. Wood took the piece to Brian Coughlin, an aircraft collector, who, not knowing what the piece was, took it to Peter Jakab of the Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded ...
.
The missing piece is the actuator
An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve. In simple terms, it is a "mover".
An actuator requires a control device (controlled by control signal) a ...
, which connects the moment chain or arm (the Wrights still used chain link in 1905) to the front elevator. In the 1940s, Orville gathered all of the stray pieces of the Flyer that were not in Massachusetts from Kitty Hawk locals who, as children, raided the Wrights' 1908 hangar for souvenirs. The actuator piece, which more than likely broke away in Wilbur's sand dune crash of May 14, 1908, somehow missed Orville's gathering efforts, and was replaced with a solid or flanged piece, which the Wrights did not start using until 1908.
According to Peter Jakab, the flanged piece is not accurate to the 1905 configuration of the Flyer III. The Wrights in 1905 used a wood assembly joined together by small flat plates and screws. The solid flat piece now on the Flyer was substituted in the 1947–1950 restoration for the missing actuator.[''Air & Space Magazine'', ]Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded ...
, issue January 2011, page 13, article title "The Wrong Wright Part" by Patricia Trenner.
Specifications (Flyer III)
See also
References
;Notes
;Bibliography
*
External links
Dayton Aviation Heritage National Historical Park
(updated using Wayback Machine)
— at Wright.NASA.gov
Rescue and preservation of Wright Flyer III
— by Jeanne Palermo, at Wright-Brothers.org
— at www.CentennialOfFlight.gov
{{DEFAULTSORT:Wright Flyer Iii
Canard aircraft
National Register of Historic Places in Greene County, Ohio
Historic Mechanical Engineering Landmarks
National Historic Landmarks in Ohio
Prone pilot aircraft
1900s United States experimental aircraft
Flyer III
Single-engined twin-prop pusher aircraft
Aircraft on the National Register of Historic Places
Aircraft first flown in 1905