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A hardpoint (more formally known as a station or weapon station) is a location on an airframe designed to carry an external or internal load. This includes a station on the wing or fuselage of a civilian aircraft or military aircraft where external jet engine, ordnance, countermeasures, gun pods, targeting pods or drop tanks can be mounted. ==Aircraft== In aeronautics, the term ''station'' is used to refer to a point of carriage on the frame of an aircraft. A station is usually rated to carry a certain amount of payload. It is a design number which already has taken the rated g-forces of the frame into account. Therefore, point loads on the structure from externally or internally mounted stores, engines, equipment, passengers, and payload are simply the weight of the item and any pylons, seats, mounting brackets, etc. multiplied by the maximum load factor which the aircraft will sustain when these items are carried.〔 Chapter 7〕 In civilian aviation a station is usually used to carry an external engine or a fuel tank. As engines are usually a fixed installation, operators usually refer to them with the designation of the engine. Therefore, the term is mostly being used for load points meant for non-fixed installation. In the military, a station can also be called ''weapons station''. Unlike civilian aircraft, NATO aircraft frame strength is required to remain without detrimental deformations at 115 percent of the limit or specified loads, and without structural failure at ultimate loads.〔(Airborne Stores, Suspension Equipment and Aircraft-store interface (carriage phase) ) MIL-STD-8591, 12 December 2005〕 Most stations on a military aircraft serve to carry pods or weapons. A minor number of stations can also serve to carry external fuel tanks. These stations are called ''wet'', a general aeronautic term referring to usage of fuel like ''wet thrust''. The term ''wet'' is also carried over to the adapters, such as a pylon. Wing stations require pylons to carry objects. Stations on the fuselage may not necessarily require a pylon, such as the fuselage stations on the McDonnell Douglas F-15 Eagle, while other aircraft like the F-14 Tomcat need pylons for certain stations in order to provide clearance for the landing gear retraction sequence. or needing item space like the Mikoyan MiG-27. Swing-wing aircraft that mount pylons on the moving portion of the wing (such as the General Dynamics F-111 and the Panavia Tornado) must include a mechanism for swiveling the pylon as the wing sweeps for or aft, in order to keep the pylon and store facing directly forwards at all times. The F-111's outermost pair of hardpoints do not swivel, and can only be used while the wing is fully extended. This restricts the aircraft to subsonic flight only while these pylons are fitted, usually fitted with fuel tanks during ferry flights. The pylons are automatically jettisoned if the wing sweep moves past 26 degrees, which would mean that the aircraft is accelerating towards transonic speeds. Stations may be numbered for reference or not at all (F-4 Phantom II). The numbering is not necessarily consistent and may originate from elsewhere like station 559 on the B-52. There is not necessarily an order in which numbers are assigned. The order can be for example from left to right (F/A-18 Hornet) or vice versa (F-15 Eagle), or mirrored and from outboard to inboard. The often unique centerline (CL) station is no exception. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「hardpoint」の詳細全文を読む スポンサード リンク
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