Lawrance A-3
The Lawrance A-3 or Lawrance Model A was an American twin-cylinder aircraft piston engine. Designed by Charles Lawrance in the mid-1910s the engine was produced by the Lawrance Aero Engine Company and under license by Excelsior. Weighing 200 lb (90 kg) the engine produced 28 horsepower (21 kW).[1] A feature of this engine was the shared use of a single crankpin for both cylinders, this caused vibration as the pistons moved in the same direction.[1]
| A-3/Model A | |
|---|---|
 | |
| Lawrance Model A engine on display at the Aviation Hall of Fame and Museum of New Jersey | |
| Type | Piston aero engine |
| National origin | United States |
| Manufacturer | Lawrance Aero Engine Company |
| Designed by | Charles Lawrance |
| First run | c.1916 |
| Produced | c.450 |
Applications
- Breese Penguin (flightless ground training aircraft)
- Driggs Dart
- Mummert Cootie
- Shinnecock lightplane
- Swanson SS-3
- Waco Cootie I (monoplane)
- Waco Cootie II (biplane)
Engines on display
- A Lawrance A-3 is on public display at the Aerospace Museum of California
Specifications
Data from Gunston.[1]
General characteristics
- Type: Two-cylinder, air-cooled horizontally opposed piston aircraft engine
- Dry weight: 200 lb (91 kg)
Components
- Cooling system: Air-cooled
Performance
- Power output: 28 hp (21 kW) at 1400 rpm
gollark: `string.find("^[\n\t\32-\127]*$", "\n")` seems fine, though. I don't know why.
gollark: `string.find("^[\0-\255]*$", "b")` and `string.find("[\0-\255]*", "bcdefgadg")` also return nil.
gollark: `/^[\n\t\x20-\x7f]*$/.exec("abcd\n\tefgh")` works fine in node.
gollark: I'm trying to match strings consisting of entirely printable ASCII characters, tabs and newlines.
gollark: `string.find("^[\n\t\32-\127]*$", "asgasga\nsg")` - why does this return nil?
References
 |
Wikimedia Commons has media related to Lawrance A-3. |
- Notes
- Gunston 1989, p. 92.
- Bibliography
- Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.