What is Hyper engine?
{{Orphan|date=May 2009}} [[File:Liberty_L-12-1.jpg|link=https://en.wikipedia.org/wiki/File:Liberty_L-12-1.jpg|thumb|Liberty L-12 engine]] The '''hyper engine''' was a possible [[aircraft engine]] model that could produce 1 [[horsepower]] per [[cubic inch]] (46 [[Kilowatt]] per [[Litre]]) of [[engine displacement]]. The term hyper engine was used only in the [[United States]], where the Army Air Corps gave people money to make a hyper engine that had an [[area]] of 1,300 cubic inches. This happened in the [[1930s]]. They thought that this would better help with [[streamlining]] and to help get a better range. Unfortunately, none of these designs ever made it past the production stage and all of the programs were canceled. The surviving engines became museum pieces. {{Transport-stub}} [[Category:Aircraft engines]]