The Allison Engine Company was an American aircraft engine manufacturer. Shortly after the death of James Allison in 1929 the company was purchased by the Fisher brothers. Fisher sold the company to General Motors, which owned it for most of its history. It was acquired by Rolls-Royce plc in 1995 to become the US subsidiary, Rolls-Royce North ...

The Rolls-Royce Heritage Trust – Allison Branch is dedicated to preserving and promoting the rich history of the Allison Engine Company and Rolls-Royce in Indianapolis (which acquired Allison in 1995).

The Allison Gas Turbine Division of the General Motors Corporation is one of the largest manufacturers of aircraft engines for medium-sized aircraft. While not as large as companies like Pratt & Whitney, Rolls-Royce, or General Electric, Allison has played an important role in the development of aviation.

The Allison V-1710 aircraft engine designed and produced by the Allison Engine Company was the only US -developed V-12 liquid-cooled engine to see service during World War II.

When Allison died in 1928, General Motors bought Allison Engine Company and the company became the Allison Engine Division. Its primary focus was the production of aircraft engines. Allison developed aircraft engines that were then used by the military in World War II.

- source: Wikipedia (https://en.wikipedia.org/wiki/Allison_Engine_Company): The Allison Engine Company was an American aircraft engine manufacturer. Shortly after the death of James Allison in 1929 the company was purchased by the Fisher brothers.

During the early and dark days of World War Two, the Allison V-1710 engine powered U.S. Army Air Forces P-38s, P-39s, and P-40s that held the line against Japanese and German forces until newer fighters could be produced.

Soon after the end of World War I, Allison Engineering produces precision reduction-gear assemblies for the nation’s Liberty aircraft engines, as well as V-drive marine gears, four-cylinder generator sets and 12-cylinder marine engines.

Allison Engine Company, located in Indianapolis, was a major producer of aircraft engines. James A. Allison, a founding partner of the Prest-O-Lite Company and the Indianapolis Motor Speedway, established the Speedway Team Company machine shop in 1915 to

This collection contains printed materials related to Allison Engine Company from approximately the 1970s through the 1990s. This includes an informational packet on the Allison GMA 2100 turboprop engine, a list of historic dates for the company from 1915 to 1983, flyers for assorted engine models, prints of engine models, and two engine photos.