Source: wikibot/lighthill-s-eighth-power-law
= Lighthill's eighth power law
{wiki=Lighthill's_eighth_power_law}
Lighthill's eighth power law is a principle in aerodynamics that describes the relationship between the power required to maintain a certain flight speed and the weight of an aircraft. It is a specific observation made by Sir Michael Lighthill related to the power needed for flight in various types of airplanes, particularly those capable of high-speed flight.