| 词条 | Borel-Boccacio Type 3000 | |||||||||||||||||||
| 释义 |
The Borel-Boccaccio Type 3000, also known as Borel C2, was a two-seat fighter designed and built in France to a 1918 C2 specification. Design and developmentIn 1918 Borel responded to two specifications for fighter aircraft, one single seat (with provision for a rear gunner and another two-seater. What emerged were two aircraft almost identical to fulfil both specifications; the Borel C1 and Borel C2.[1] Borel C1The C1 was designed with two fixed synchronised machine-guns, or a single machine-gun with a {{cvt|37|mm|3}} cannon firing through the propeller boss. Two additional machine-guns were also proposed, fired by a second crewman seated behind the pilot, known as a single-seat protégé, which mirrored the C2 specification. Development of the sole C1 was abandoned with the armistice in favour of the almost identical C2.[1] Borel C2 / Borel-Boccaccio Type 3000The C2 was a two-seat fighter very similar to the C1 but with a gun ring in a separate cockpit behind the pilot and a revised cabane strut arrangement. The two-bay biplane wings had moderate stagger and were attached to the lower fuselage longerons and cabane struts under the centre section. Power was supplied by a {{cvt|300|hp}} Hispano-Suiza 8Fb driving a 2-bladed wooden propeller with a large spinner. The wooden fuselage was covered in fabric and housed two jettisonable fuel tanks and, initially, a ventral radiator for the closely cowled Hispano-Suiza 8Fb and fixed {{cvt|7.7|mm|3}} Vickers machine-gun. Provision for two cameras was made under the pilots seat and the rear gunner had two {{cvt|7.7|mm guns on a T.O.3gun ring.[1] Testing of the Type 3000 revealed that the aircraft met the armament requirements of the specification and that the structure had a load factor of seven (could withstand 7g). Modifications included replacing the ventral radiator with two Lamblin radiators mounted on the undercarriage legs, shortened exhaust manifolds and an extra stut supporting the tailplane. Despite exceeding the performance requirements the Type 3000 was not ordered for production due to the SPAD S.XX, beating Borel to the post, having been flown and tested in 1918.[1] Specifications (Type 3000 / C2){{Aircraft specs|ref=French aircraft of the First World War,[1] Aviafrance:Borel C2[2] |prime units?=met
{{cvt|260|km/h|mph kn}} at {{cvt|2000|m}} {{cvt|237|km/h|mph kn}} at {{cvt|3000|m}} {{cvt|230|km/h|mph kn}} at {{cvt|4000|m}} |max speed mach= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh= |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |minimum control speed kmh= |minimum control speed mph= |minimum control speed kts= |minimum control speed note= |range km=500 |combat range km= |combat range miles= |combat range nmi= |combat range note= |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance=3 hours |ceiling m=7500 |g limits= |roll rate= |climb rate ms= |climb rate ftmin= |climb rate note= |time to altitude={{cvt|1000|m}} in 2 minutes 47 seconds {{cvt|2000|m}} in 6 minutes 29 seconds {{cvt|4000|m}} in 15 minutes {{cvt|6000|m}} in 25 minutes 53 seconds |wing loading kg/m2= |wing loading lb/sqft= |wing loading note= |fuel consumption kg/km= |fuel consumption lb/mi= |power/mass= |more performance=
References1. ^1 2 3 4 {{cite book |last1=Davilla |first1=Dr. James J. |last2=Soltan |first2=Arthur M. |title=French aircraft of the First World War |publisher=Flying Machines Press |isbn=1891268090 |pages=79–81}} 2. ^{{cite web |last1=Parmentier |first1=Bruno |title=Borel C-2 |url=https://www.aviafrance.com/aviafrance1.php?ID=764&ID_CONSTRUCTEUR=230&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=19 October 2018 |location=Paris |language=French}} 3 : French fighter aircraft 1910–1919|Aircraft first flown in 1919|Biplanes |
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