H6, H06, or H-6 may refer to:

Science

British NVC community H6 NVC community H6 (''Erica vagans - Ulex europaeus'' heath) is one of the heath communities in the British National Vegetation Classification system. It is one of five communities categorised as lowland dry heaths. It has a very localised distribu ...

, an ecological designation *

Sanguiin H-6 Sanguiin H-6 is an ellagitannin. Natural occurrence Sanguiin H-6 can be found in Rosaceae such as the great burnet (''Sanguisorba officinalis''), in strawberries (''Fragaria × ananassa'') and in ''Rubus'' species such as red raspberries (''Rub ...

, a dimeric ellagitannin found in ''Sanguisorba officinalis'', the great burnet *

Hydrogen-6 Hydrogen (1H) has three naturally occurring isotopes, sometimes denoted , , and . and are stable, while has a half-life of years. Heavier isotopes also exist, all of which are synthetic and have a half-life of less than one zeptosecond (10� ...

(H-6 or ⁶H), an isotope of hydrogen

Transportation

Aircraft

Hughes OH-6 Cayuse The Hughes OH-6 Cayuse is a single-engine light helicopter that was designed and produced by the American aerospace company Hughes Helicopters. Its formal name is derived from the Cayuse people while its "Loach" nickname comes from the acronym f ...

, a 1963 American scout helicopter **

MD Helicopters MH-6 Little Bird The Boeing MH-6M Little Bird (nicknamed the Killer Egg) and its attack variant, the AH-6, are light helicopters used for special operations in the United States Army. Originally based on a modified OH-6A, it was later based on the MD 500E, w ...

, a special forces variant *

Xian H-6 The Xian H-6 () is a twin-engine jet bomber of the Chinese People's Liberation Army Air Force (PLAAF). The H-6 is a license-built version of the Soviet Tupolev Tu-16 and remains the primary bomber aircraft of the People's Republic of China. Del ...

, a Chinese bomber * Besson H-6, a French flying boat *

Sikorsky R-6 The Sikorsky R-6 is an American light two-seat helicopter of the 1940s. In Royal Air Force and Royal Navy service, it was named the Hoverfly II. Development The R-6/Hoverfly II was developed to improve on the successful Sikorsky R-4. In order to ...

, a 1943 American helicopter

Watercraft

* HMS ''H6'', a British submarine * USS ''H-6'' (SS-149), a United States submarine * HMS ''Hurricane'' (H06), a British ''Havant''-class destroyer * HMS ''Keith'' (H06), a British B-class destroyer

Other vehicles

PRR H6 The Pennsylvania Railroad's class H6, H6a, and H6b steam locomotives were of the 2-8-0 "Consolidation" freight type, the most numerous class on the railroad with 1,707 units and the second most prolific 2-8-0 class in North America, with the USATC ...

, a steam locomotive *

Haval H6 The Haval H6 is a compact crossover SUV produced by the Chinese manufacturer Great Wall Motor under the Haval marque since 2011. It was introduced at the 2011 Shanghai Auto Show, and it is a crossover, produced with both front-wheel-drive and four ...

, a compact crossover SUV produced by Great Wall Motor *

Hispano-Suiza H6 The Hispano-Suiza H6 is a luxury car that was produced by Hispano-Suiza, mostly in France. Introduced at the 1919 Paris Motor Show,Ultimatecarpage.com – Hispano Suiza H6C Monza the H6 was produced until 1933. Roughly 2,350 H6, H6B, and H6C cars ...

, an automobile

Roads

H6 Childs Way H6, H06, or H-6 may refer to: Science * British NVC community H6, an ecological designation * Sanguiin H-6, a dimeric ellagitannin found in ''Sanguisorba officinalis'', the great burnet * Hydrogen-6 (H-6 or 6H), an isotope of hydrogen Transport ...

, a road in England * Highway H06, a road in the Ukraine

Other uses

* , level 6 heading markup for HTML Web pages, see HTML element#heading *

Flat-six engine A flat-six engine, also known as a horizontally opposed-six, is a six-cylinder piston engine with three cylinders on each side of a central crankshaft. The most common type of flat-six engine is the boxer-six engine, where each pair of opposed c ...

, sometimes marketed as H6 * '' Halloween: The Curse of Michael Myers'', the sixth film in the ''Halloween'' franchise * '' H6: Diary of a Serial Killer'', a movie *

Composition H6 __NOTOC__ Composition H6 is a castable military explosive mixture composed of the following percentages by weight: * 44.0% RDX * 29.5% TNT * 21.0% powdered aluminium * 5.0% paraffin wax as a phlegmatizing agent. * 0.5% calcium chloride H6 is ...

, an explosive * H6, a watch possibly made by

John Harrison John Harrison ( – 24 March 1776) was a self-educated English Carpentry, carpenter and clockmaker who invented the marine chronometer, a long-sought-after device for solving the History of longitude, problem of calculating longitude while at s ...