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The Octave Chanute Pages

An Overview of the Two-surfaced gliders that came out of the 'Chanute Group.'




Centered around Octave Chanute, Chicago was one of three centers of aeronautical research in the United States in 1896. From his group came the Chanute-Herring glider that was to be the most significant pre-Wright aircraft. Two strongly trussed wings with a cruciform tail, the wings would be the design chosen by the Wright brothers to build their planes. The glider foreshadowed the bi-planes of the early years of flight.


While Chanute was cautious about the future of this glider as an airplane, his assistant and chief contributor to the design, Augustus Herring, was inspired. Convinced that all was needed was an engine and propellers on the glider, he built and experimented with a three winged glider immediately following the initial experiments in the Indiana Dunes in 1896. The following year he found a new patron in Matthias Arnot, who financed the building of a bi-plane glider fashioned after the original Chanute-Herring glider. And the next year, 1898, he did put an engine and propellers on a bigger version of the glider and 'flew' it near his home in St. Joseph, Michigan. Chanute built one more of the 'original' glider, exhibiting and flying it at the St. Louis Exposition of 1904. Only the last one survives, having been bought by the Musee de l'Air, it is on public display at the new Musee de l'Air et de l'Space at the Bourget Airport in Paris, France.


The following tables provide an overview and comparison of these gliders.




General Overview
1896 Chanute-Herring Glider 1896 Herring Triplane1 1897 Herring-Arnot Version 1898 Herring Powered Glider 1904 'Exposition' Glider
Photo
Type Bi-Plane Tri-Plane Bi-Plane Bi-Plane Bi-Plane
Builder & Place Chanute, Herring &
Avery - Avery Workshop
Herring - probably
Avery Workshop
Avery Truscott Boat Yard
St. Joseph, MI
Avery
Where Flown Dune Park Dune Park Dune Park St. Joseph, Michigan St. Louis Exposition
When flown Sept., 1896 late 1896 or early 1897 Sept., 1897 Oct. 10th& 22nd, 1898 Oct. 7 - 25, 1904
Best Distance 359' / 14 sec. 927' 600' 50' & 72' 175'
Support Bars2 vertical   Angled in   Angled in
Ribs or struts 12   11 14 11
Overhang3 Fabric overhangs   No overhang   No overhang
Wing size 16'2"x
4'4"
ca. 15'x
5'
15'7.5"x
5'
18' 15'9"x
4'11"
Total Square Feet 134 227 156   165.9
Wing Section Arc   Circular arc airfol   Parabolic 4
Total Weight 23 lbs.   19 lbs. 88 lbs.
[with motor]
18 lbs.


1 Chanute, in his diary entry of August 31st, mentions that the three-wing glider was cut down to two wings. Herring wrote about this glider in the Aeronautical Annual, 1897.

2 In pictures the first Chanute-Herring glider was often confused with the Herring-Arnot glider. The most obvious difference is the position of the vertical support bars to the bars that the pilot supported himself on. In the original glider the bars were vertical, in the Herring-Arnot version the bars were angled in slightly to give the glider pilot easier control.

3Fabric overhang: In the original glider the fabric overhangs the interplane struts in each strut bay. Examination of photos and drawings is certain to bring confusion on this point and cannot be taken as a final determination.

4 The pictures indicate an almost flat wing with a short downturn in the wing section at the front.