Otto A.G.O. 100/130 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 around 1911 by the German firm Gustav Otto Flugmaschinenwerke.
Design and development
In 1911, the Otto A.G.O. (Aeromotor Gustav Otto) 80/100 hp was engineered by Hans Geisenhof at the Gustav Otto Flugmaschinenwerke. Featuring a bore and stroke of 140 mm × 150 mm (5.5 in × 5.9 in), this powerplant delivered between 80 and 100 hp (60 and 75 kW) at a standard operating speed of 1,200 rpm.
Similar to the smaller Otto A.G.O. 50 hp, its cylinders were individually cast from iron and then precision-machined. These separate cylinders were assembled into a single block by connecting their cooling jackets with flanges and bolts. The combined cylinder block contained a unified intake passage running through the water jackets, supplied by one carburettor positioned at the control end.
Each cylinder housed two overhead valves actuated by pushrods and rocker arms linked to a camshaft located on the engine's left side. The camshaft was driven by spur gears connected to the crankshaft at the control end. Positioned on the right side at the control end, the magneto received drive from the crankshaft via an intermediate spur gear.
The crankshaft was supported by three central plain bearings and two outer bearings, complemented by two thrust ball bearings at the propeller end. Lubrication was maintained through pressure feed, with an oil pump supplying oil to the crankshaft bearings.
By 1912, a six-cylinder version sharing the same cylinder dimensions was also manufactured, rated between 100 and 130 hp (75 and 97 kW).
Variants
- Otto A.G.O. 80/100 hp four-cylinder
- (Introduced 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)
- Otto A.G.O. 100/130 hp six-cylinder
- (Produced in 1912) outputting 100–130 hp (75–97 kW), with a mass near 160 kg (350 lb), maintaining the same bore and stroke dimensions of 140 mm × 150 mm (5.5 in × 5.9 in)
Specifications (Otto A.G.O. 80/100 hp)
See also
References
Bibliography
- Angle, Glenn Dale (1921). Airplane Engine Encyclopedia: An Alphabetical Compilation of All Available Data on Global 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.