• A Handley Page Biplane
    A Handley Page Biplane
  • WordNet 3.6
    • n biplane old fashioned airplane; has two wings one above the other
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Additional illustrations & photos:

Wright's Biplane Glider Wright's Biplane Glider

Webster's Revised Unabridged Dictionary
    • n Biplane (Aëronautics) An aëroplane with two main supporting surfaces one above the other.
    • a Biplane (Aëronautics) Having, or consisting of, two superposed planes, aërocurves, or the like; of or pertaining to a biplane; as, a biplane rudder.
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Century Dictionary and Cyclopedia
    • n biplane In mathematics, the pair of coincident planes to which the tangent cone of a node reduces, when that node is a binode.
    • n biplane A flying- or a gliding-machine in which two principal superposed aëroplane surfaces are depended upon to sustain the machine in the air.
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Webster's Revised Unabridged Dictionary
Pref. bi-, + plane,


In literature:

My biplane was flying itself.
"High Adventure" by James Norman Hall
The loading per square foot was, for biplanes, about 4-1/2, and, for monoplanes, 6 lb.
"Aviation in Peace and War" by Sir Frederick Hugh Sykes
Already two have been struck since I arrived, and the wings carried off a French biplane.
"The Incomparable 29th and the "River Clyde"" by George Davidson
Terra hadn't used biplanes in combat for centuries!
"Fearful Symmetry" by Ann Wilson
I caught a fleeting glimpse of what I took to be a little biplane.
"The Fire People" by Ray Cummings
The airman started on the enterprise alone in a biplane.
"World's War Events, Vol. I" by Various
Exactly at 9.45 Titherington made a magnificent start in his Henry Farman biplane.
"The Trail of the Hawk" by Sinclair Lewis
Should the biplane tilt, while flying, say towards the left, the pilot moves his hand-lever sideways towards the right.
"Learning to Fly" by Claude Grahame-White
He made a double-surface glider, on the biplane principle, and flew on it.
"The War in the Air; Vol. 1" by Walter Raleigh
It was a large biplane of considerable speed, armed with two machine guns, one fore and one aft.
"The Story of the Great War, Volume IV (of 8)"

In news:

Adolf Galland during the Spanish Civil War, in which he flew Heinkel He-51 biplanes, more often on strafing missions than in aerial combat.
A Memoir of Biplane Operations Over Waziristan in the Last Days of British Rule in India (by Geoffrey Morley -Mower): AVH.
A Memoir of Biplane Operations Over Waziristan in the Last Days of British Rule in India, by Wing Commander Geoffrey Morley -Mower, Yucca Tree Press, Las Cruces, N.M.
THE CURRENT ROUNDABOUT Theater revival of Tennessee Williams's "Summer and Smoke" flies low over the play like an old biplane on a sightseeing tour.
This program celebrates the now-vanished Columbia Gardens, in business from 1899-1973, in home movies, pictures, and first-hand accounts of people who remember the rollercoaster, the carousel, the biplanes and the cowboy swings.
The Innova 3131IQ and 2121IQ digital flat panel biplane imaging systems cover the full size of the patient's lateral and frontal anatomy simultaneously for a variety of cardiovascular and neurovascular image guided interventional procedures.
In the olden days, you didn't need much to enjoy air travel: a pair of goggles, a trusty biplane and a song in your heart.
George Meyers' "Little Toot " has long been one of the nation's most popular homebuilt sport biplanes.
If you like the sight and sounds of vintage WW1 biplanes, triplanes, spot landings and bomb drops, then the guys of the Long Island Skyhawks have an event for you.
The last passenger plane crash on the island occurred in March 2002, when a Soviet-made biplane carrying 16 people — including 12 foreigners — plunged into a small reservoir in central Cuba.
MIT's Supersonic Biplane Pretty Darn Close to Teleporting.
This 1928 Zenith biplane was a real people pleaser.
With proportions making it an excellent project choice for RC, this aircraft was the most produced biplane in the world (40,000) and second most produced airplane ever, second only to the Cessna 172 (43,000.
The biplane is happier with a large-diameter prop with a lower pitch, and the monoplane will perform better with a smaller-diameter prop of higher pitch.
The UAC-200 Scrappy is a single-place sport biplane constructed of steel tubing, wood, and fabric.

In science:

In the wind tunnel experiments of these authors, the turbulence was passively generated by square-mesh biplane grids placed at the test section entry. A particular aspect of the potential dependence on initial conditions is whether the power-law decay of the far-downstream turbulence depends on them.
Dependence of decaying homogeneous isotropic turbulence on initial conditions