The Scarff ring was a type of machine gun mounting developed during the First World War by Warrant Officer (Gunner) F. W. Scarff of the Admiralty Air Department for use on two-seater aircraft. The mount incorporated bungee cord suspension in elevation to compensate for the weight of the gun, and allowed an airgunner in an open cockpit to swivel and elevate his weapon (a Lewis machine gun) quickly, and easily fire in any direction. Later models permitted the fitting of two Lewis guns; while this doubled the firepower available, operation of the paired guns was more cumbersome, and required considerable strength from the gunner, especially at altitude, so that many gunners preferred the original single gun - and this became the postwar standard. In either case, the mounting was simple and ru
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| - Oběžný kruh Scarff (cs)
- Anillo Scarff (es)
- Affût Scarff (fr)
- Anello Scarff (it)
- Obrotnica Scarffa (pl)
- Scarff ring (en)
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| - El anillo Scarff fue un afuste articulado para ametralladoras, desarrollado e instalado en los aviones biplazas británicos de la Primera Guerra Mundial y algunos del período de entreguerras. (es)
- L'affût Scarff était un système de montage de mitrailleuses sur avion, conçu durant la Première Guerre mondiale par un officier marinier (sous-officier), l'adjudant F. W. Scarff, du British Admiralty Air Department (Département de l'air de l'Amirauté britannique). (fr)
- L'anello di Scarff o Scarff ring è un particolare sistema di sospensione di una mitragliatrice che, montato su un aereo, ne permette il puntamento rapido in tutte le direzioni. (it)
- Obrotnica Scarffa – wczesna obrotnica samolotowa opracowana w 1915 pozwalająca na 360° pole ostrzału i ze wspomaganiem ruchu w płaszczyźnie pionowej. (pl)
- Oběžný kruh Scarff byl typ upevnění pohyblivého kulometu na britských dvoumístných letounech v době první světové války. Jeho autorem byl Warrant Officer (střelec) F. W. Scarff z Leteckého oddělení britské . Oběžný kruh umožňoval střelci v otevřeném kokpitu lehce otáčet zbraň (typicky jeden nebo dva kulomety Lewis) do všech směrů. Upevnění bylo jednoduché, bytelné a poskytovalo střelci skvělé palebné pole. Bylo rovněž široce používáno a kopírováno ostatními letectvy. Například ve Francii byl okruh Scarff No.2 vyráběn v licenci pod označením TO3. Jeho dalším vývojem tam vznikl modifikovaný TO4. (cs)
- The Scarff ring was a type of machine gun mounting developed during the First World War by Warrant Officer (Gunner) F. W. Scarff of the Admiralty Air Department for use on two-seater aircraft. The mount incorporated bungee cord suspension in elevation to compensate for the weight of the gun, and allowed an airgunner in an open cockpit to swivel and elevate his weapon (a Lewis machine gun) quickly, and easily fire in any direction. Later models permitted the fitting of two Lewis guns; while this doubled the firepower available, operation of the paired guns was more cumbersome, and required considerable strength from the gunner, especially at altitude, so that many gunners preferred the original single gun - and this became the postwar standard. In either case, the mounting was simple and ru (en)
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| - Oběžný kruh Scarff byl typ upevnění pohyblivého kulometu na britských dvoumístných letounech v době první světové války. Jeho autorem byl Warrant Officer (střelec) F. W. Scarff z Leteckého oddělení britské . Oběžný kruh umožňoval střelci v otevřeném kokpitu lehce otáčet zbraň (typicky jeden nebo dva kulomety Lewis) do všech směrů. Upevnění bylo jednoduché, bytelné a poskytovalo střelci skvělé palebné pole. Bylo rovněž široce používáno a kopírováno ostatními letectvy. Například ve Francii byl okruh Scarff No.2 vyráběn v licenci pod označením TO3. Jeho dalším vývojem tam vznikl modifikovaný TO4. Oběžný kruh Scarff se stal standardním uchycením pohyblivé výzbroje na dvoumístných letounech britských sil během první světové války a ještě mnoho let po válce u Royal Air Force. Zřejmě posledním britským letadlem s tímto kruhem byl obojživelný Supermarine Walrus. (cs)
- El anillo Scarff fue un afuste articulado para ametralladoras, desarrollado e instalado en los aviones biplazas británicos de la Primera Guerra Mundial y algunos del período de entreguerras. (es)
- L'affût Scarff était un système de montage de mitrailleuses sur avion, conçu durant la Première Guerre mondiale par un officier marinier (sous-officier), l'adjudant F. W. Scarff, du British Admiralty Air Department (Département de l'air de l'Amirauté britannique). (fr)
- The Scarff ring was a type of machine gun mounting developed during the First World War by Warrant Officer (Gunner) F. W. Scarff of the Admiralty Air Department for use on two-seater aircraft. The mount incorporated bungee cord suspension in elevation to compensate for the weight of the gun, and allowed an airgunner in an open cockpit to swivel and elevate his weapon (a Lewis machine gun) quickly, and easily fire in any direction. Later models permitted the fitting of two Lewis guns; while this doubled the firepower available, operation of the paired guns was more cumbersome, and required considerable strength from the gunner, especially at altitude, so that many gunners preferred the original single gun - and this became the postwar standard. In either case, the mounting was simple and rugged, and gave its operator an excellent field of fire. It was widely adapted and copied for other airforces. As well as becoming a standard fitting in the British forces during the First World War, the Scarff ring was used in the postwar Royal Air Force for many years. Perhaps the last British aircraft to use the mounting was the Supermarine Walrus amphibian prototype. Scarff was also involved in the development of the Scarff-Dibovsky synchronization gear. Although it was a seemingly simple device, later attempts to emulate the Scarff ring as a mounting for the dorsal Vickers K in the World War II Handley Page Hampden bomber were failures. Handley Page had designed a carriage with ball-bearing wheels running on a track around the cockpit. Vibration when firing shook the balls out, jamming the mounting. In the 1930s, the Germans developed a similar system called the Drehkranz D 30 (German: "slewing ring") which was used on a number of German aircraft, most notably the Junkers Ju 52. In British use the Scarff ring was replaced in the 1930s by specialised power-operated turrets such as those made by Boulton Paul or Nash & Thompson, aircraft air speeds having by then risen to the point where a manually-operated gun was infeasible. The Scarff Ring was also fitted to the Rolls-Royce Armoured Car vehicles of the RAF Armoured Car Companies, antecedents to the RAF Regiment. (en)
- L'anello di Scarff o Scarff ring è un particolare sistema di sospensione di una mitragliatrice che, montato su un aereo, ne permette il puntamento rapido in tutte le direzioni. (it)
- Obrotnica Scarffa – wczesna obrotnica samolotowa opracowana w 1915 pozwalająca na 360° pole ostrzału i ze wspomaganiem ruchu w płaszczyźnie pionowej. (pl)
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