Otto A.G.O. 80/100 hp
| Industry | Aircraft engine manufacturing |
|---|---|
| Founded | 1911 |
| Founder | Gustav Otto |
| Headquarters | Germany |
| Products | Aircraft engines |
The Otto A.G.O. 80/100 hp was a four-cylinder, water-cooled inline aircraft engine produced in 1911 by the German company Gustav Otto Flugmaschinenwerke.
Design and development
Designed in 1911 by Hans Geisenhof at the Gustav Otto Flugmaschinenwerke, the Otto A.G.O. (Aeromotor Gustav Otto) 80/100 hp featured a bore and stroke measuring 140 mm × 150 mm (5.5 in × 5.9 in) and delivered power between 80 and 100 hp (60 and 75 kW) at a standard operating speed of 1,200 rpm.[1][2]
Similar to the smaller Otto A.G.O. 50 hp model, its cylinders were individually cast from iron before being precision machined. These separate cylinders were then assembled into a unified block by connecting their cooling jackets through flanges and bolts. This combined cylinder block contained a single intake manifold running within the water jackets, supplied by one carburettor positioned at the engine's control end.[2]
Each cylinder was equipped with two overhead valves actuated by pushrods and rocker arms linked to a camshaft located on the left side of the engine. The camshaft received its drive from the crankshaft via spur gears at the control end. On the opposite side, to the right of the control end, a magneto was mounted and driven through an intermediate spur gear connected to the crankshaft.
The crankshaft rested on three intermediate plain bearings and two outer bearings, complemented by two thrust ball bearings situated at the propeller end. Lubrication was maintained by pressure feed, with an oil pump supplying oil to the crankshaft bearings.[2]
In 1912, a six-cylinder variant maintaining the same cylinder dimensions was introduced, producing between 100 and 130 hp (75 and 97 kW).[2]
Variants
- Otto A.G.O. 80/100 hp four-cylinder
- (Produced in 1911), delivering 80–100 hp (60–75 kW), weighing approximately 130 kg (290 lb), with bore and stroke of 140 mm × 150 mm (5.5 in × 5.9 in).[3][2]
- Otto A.G.O. 100/130 hp six-cylinder
- (Introduced in 1912), rated at 100–130 hp (75–97 kW), massing around 160 kg (350 lb), retaining the same bore and stroke dimensions.[2]
Specifications (Otto A.G.O. 80/100 hp)
See also
References
Bibliography
- Angle, Glenn Dale (1921). Airplane Engine Encyclopedia: An Alphabetically Arranged Compilation Of All Available Data On The World's Airplane Engines. Otterbein Press. pp. 372-373. OL 23525261M.
- Quittner, Victor (May 1912). "Die Flugmotorern auf der "ALA"". Der Oelmotor (in Deutsch). I. Jahrgang 1912/13 (2). Berlin: Verlag für Fachliteratur G.m.b.H.: 96–101. OCLC 2449244.
- "Gustav Otto Flugmaschinen-Werke München (advertisement)". Illustrirte Mittheilungen des Oberrheinischen Vereins für Luftschiffahrt, Jahrgang 1911 (in Deutsch). 15 (16): 38. August 9, 1911. OCLC 19872940.