| 词条 | Morane-Saulnier MoS-121 | |||||||||||||||
| 释义 |
The Morane-Saulnier MoS-121, also known as the Morane-Saulnier MS.121 was a French fighter prototype of the 1920s. It was Morane-Saulnier's first fighter design after World War I. DevelopmentAs a direct result of concern over the escalating cost of fighter manufacture, the French government and air force instituted a program for chasseurs légers or 'light fighters' in {{avyear|1926}}. This was unofficially known as the 'Jockey' program, and it envisaged the use of moderate guns, minimal equipment and small amounts of ammunition. Emphasis was placed on climb rate, endurance and a ceiling (high for the time) of 8000 metres. To meet this requirement, Morane-Saulnier designed the MoS-121, renamed the MS 121 in 1927, as a single-seat parasol monoplane of mixed construction. Operational historyAfter flying for the first time in mid-1927, it proved underpowered and incapable of climbing easily and was discarded in favour of the Morane-Saulnier MS.221. Specifications (MoS-121){{Aircraft specs|ref=Jane's all the World's Aircraft 1928[1], The Complete Book of Fighters[2] |prime units?=met
{{cvt|250|km/h|mph kn}} at {{cvt|2500|m}} {{cvt|246|km/h|mph kn}} at {{cvt|3500|m}} |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= |range km= |range miles= |range nmi= |range note= |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=1.5 hours at full throttle |ceiling m=8700 |g limits= |roll rate= |climb rate ms= |climb rate ftmin= |climb rate note= |time to altitude={{cvt|1500|m}} in 3 minutes 44 seconds {{cvt|3500|m}} in 9 minutes 19 seconds {{cvt|4500|m}} in 13 minutes 11 seconds {{cvt|6500|m}} in 25 minutes 25 seconds {{cvt|7500|m}} in 36 minutes 5 seconds |wing loading kg/m2=78 |fuel consumption kg/km= |fuel consumption lb/mi= |power/mass={{cvt|0.1639|hp/lb|kW/kg|order=flip}} |more performance=
References{{commons category|Morane-Saulnier MS.121}}1. ^{{cite book |title=Jane's all the World's Aircraft 1928 |editor1-last=Grey |editor1-first=C.G. |year=1928 |publisher=Sampson Low, Marston & company, ltd |location=London |page=113c}} {{Morane-Saulnier aircraft}}2. ^{{cite book |last=Green |first=William |title=The Complete Book of Fighters |year=1994 |publisher=Salamander |location=London |isbn=1-85833-777-1 |author2=Swanborough, Gordon |page=416}} 2 : Morane-Saulnier aircraft|French fighter aircraft 1920–1929 |
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