In engineering, specific power (sometimes also power per unit mass or power density) refers to the amount of power delivered by an energy source, divided by some measure of the sources size or mass. ... Bold text The compression ratio is a single number that can be used to predict the performance of any engine (such as an internal-combustion engine or a Stirling Engine). ... Power-to-weight ratio is a measure commonly used when comparing various vehicles (or engines), including automobiles, motorcycles and aircraft. ...
The de Havilland DH 89 Dragon Rapide was a successful British short-haul passenger airliner of the 1930s. ... de Havilland Dove The de Havilland DH.104 Dove was a British monoplane short-haul airliner from de Havilland, the successor to the bi-plane de Havilland Dragon Rapide and was one of Britains most successful post-war civil designs. ... The de Havilland DH.114 Heron was a small, propeller-driven British airliner that first flew on May 10 1950. ... The Percival Proctor was a British radio trainer and communications aircraft of World War II. It was a single-engine, low-wing monoplane with seating for three or four, depending on the model. ... The Short SA.6 Sealand was a light, commercial amphibian aircraft for 5-7 passengers, designed for the general overseas market in territories with suitable water access and/or runways. ...
Piston engines Cirrus · Gipsy III ·Gipsy Queen ·Gipsy King ·Gipsy Major ·Gipsy Twelve · Turbojet Ghost ·Goblin ·Gyron ·Gyron Junior · Turboprop/turboshaft Gnome ·Gem Rocket Sprite ·Spectre · Scorpion · For other uses, see De Havilland (disambiguation). ... The de Havilland Gipsy Twelve was an aero-engine developed by de Havilland. ... The de Havilland Gipsy Major was a 4-cylinder, air-cooled, inline engine used in a variety of light aircraft in the 1930s including the famous Tiger Moth biplane. ... The De Havilland Ghost was a turbojet engine. ... Cutaway Goblin II A cutaway diagram of the internal workings of the de Havilland Goblin, as fitted to the Vampire. ... The PS.23 or PS.52 Gyron, also known as the Halford H-4, was Frank Halfords last turbojet design while working for de Havilland. ... The PS.23 or PS.52 Gyron, also known as the Halford H-4, was Frank Halfords last turbojet design while working for de Havilland. ... Please wikify (format) this article or section as suggested in the Guide to layout and the Manual of Style. ... The de Havilland Spectre was a rocket engine built by de Havilland in the post Second World War period. ...
Timeline of aviation Aircraft ·Aircraft manufacturers ·Aircraft engines ·Aircraft engine manufacturers ·Airports ·Airlines Air forces ·Aircraft weapons ·Missiles ·Unmanned aerial vehicles (UAVs) ·Experimental aircraft Notable military accidents and incidents ·Notable airline accidents and incidents · Famous aviation-related deaths Flight airspeed record ·Flight distance record ·Flight altitude record ·Flight endurance record ·Most produced aircraft Aviation refers to flying using aircraft, machines designed by humans for atmospheric flight. ... This is a timeline of aviation history. ... This list of aircraft is sorted alphabetically, beginning with the name of the manufacturer (or, in certain cases, designer). ... This is a list of aircraft manufacturers (in alphabetic order). ... List of aircraft engines: // Aeronca E-113 United States Aerosport-Rockwell LB600 United States Agusta GA.70 Italy Agusta GA.140 Italy Alfa Romeo 110 Italy Alfa Romeo 115 Italy Alfa Romeo 121 Italy Allison V-1710 United States Alvis Alcides United Kingdom Alvis Leonides United Kingdom Alvis Leonides Major... This is a list of aircraft engine manufacturers both past and present. ... This is a list of airlines in operation (by continents and country). ... This is a list of air forces, sorted alphabetically by country, followed by a list of former countries air forces. ... This is an incomplete list of aircraft weapons, past and present. ... Below is a list of (links to pages on) missiles, sorted alphabetically by name. ... A Boeing 720 being flown under remote control as part of NASAs Controlled Impact Demonstration The following is a list of Unmanned aerial vehicles developed and operated by various countries around the world. ... This is a list of experimental aircraft. ... // This is a list of notable incidents and accidents involving military aircraft grouped by the year that the incident or accident occurred. ... // Accidents and incidents on commercial aircraft grouped by the year that the incident or accident occurred. ... This is a list of some well-known people who have died in aviation-related events. ... The SR-71 Blackbird is the current record holder. ... Flight distance records without refueling. ... It has been suggested that this article or section be merged with List of altitude records reached by different aircraft types. ... The flight endurance record is the amount of time spent in the air. ... Aircraft with a production run greater than 5,000 aircraft. ...
The deHavilland DH.114 Heron was a small, propeller-driven British airliner that first flew on May 10 1950.
It was a development of the deHavilland Dove, with a stretched fuselage and two more engines, for a total of four.
Immediately after World War 2, the aircraft manufacturer DeHavilland developed the DH.104 Dove, a small, two-engined passenger aircraft intended as a replacement for the earlier Dragon Rapide, and which soon proved to be successful.