Wright Vertical 4
The Wright Vertical 4 was an American aircraft engine built by the Wright brothers in the very early years of powered flight. It was a liquid-cooled piston engine with four inline cylinders, mounted vertically. It generated about from a displacement of and weighed about. Developed by Orville Wright in 1906, the Vertical 4 was produced by the Wright Company until 1912 and was the most numerous engine they manufactured. Around a hundred Vertical 4 engines were built, according to a Wright test foreman.
The Vertical 4 powered most Wright aircraft during this period, including the Model A and Model B and variants built for the U.S. Army and Navy.
This engine was also built under license by Bariquand et Marre in France and by Neue Automobil-Gesellschaft in Germany.Applications
Wright Vertical 4 engines can be seen on display in the following museums, among others:
- National Air and Space Museum, Washington, D.C.
- Steven F. Udvar-Hazy Center, Chantilly, Virginia
- Wright Brothers Aviation Center in Carillon Historical Park, Dayton, Ohio
- Hiller Aviation Museum, San Carlos, California
- New England Air Museum, Windsor Locks, Connecticut
- Museum of Science and Industry, Chicago, Illinois
- National Museum of Flight, East Fortune, Scotland
Specifications