| 词条 | Messerschmitt M 18 | |||||||||||||||
| 释义 |
The Bayerische Flugzeugwerke M 18 (BFW M 18), (later known as Messerschmitt M 18) was an airliner, produced in Germany in the late 1920s. Design and developmentDesigned at the request of Theodor Croneiss to supply his new airline venture which was to become Nordbayerische Verkehrsflug (NOBA),[1] it was a conventional high-wing cantilever monoplane with fixed tailskid undercarriage. The prototype was built of wood, although production examples would have a metal structure.[2] The design was praised in its day for the cleanness of its aerodynamics, lightness of construction, and economy of operation[3][4] Operational historyThe first M 18 to enter service with NOBA was provided by Messerschmitt in exchange for a 49% share of the new company, and on 26 July it began commercial flights.[5] NOBA's early successes enabled the company to place orders for additional examples of an improved model, the M 18b. It would eventually purchase twelve of these,[1] but manufacturing them would exceed the capacity of Messerschmitt's own small firm, leading to a merger with Bayerische Flugzeugwerke (BFW) in 1927. Following NOBA's reorganisation into DEVAG in 1931, a small number of a further-improved version, designated M 18d, were ordered, but the type was soon superseded by the similar but larger Messerschmitt M 20.[2] Variants
Operators
Specifications (M 18d){{Aircraft specs|ref=Messerschmitt: an aircraft album[6], Flugzeug-Typenbuch 1936[7] |prime units?=met
|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=630 |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance=3.8 hours |ceiling m=5300 |g limits= |climb rate ms=3.1 |time to altitude={{convert|1000|m|ft|abbr=on|0}} in 7 minutes |lift to drag= |wing loading kg/m2=75 |fuel consumption kg/km= |fuel consumption lb/mi= |power/mass= 0.126 kW/kg (0.077 hp/lb) |thrust/weight= }} Notes1. ^1 {{cite journal| last=Szigeti| first=Marton| title=Messerschmitt History: Civil Projects| journal=Flug Revue| date=July 1998| url=http://www.flug-revue.rotor.com/FRHEFT/FRH9807/FR9807d.htm| accessdate=2008-10-24| page=74| deadurl=yes| archiveurl=https://web.archive.org/web/20081120074525/http://www.flug-revue.rotor.com/FRheft/FRH9807/FR9807d.htm| archivedate=2008-11-20| df=}} {{Commons category}}{{Messerschmitt aircraft}}2. ^1 {{cite book|title=The Illustrated Encyclopedia of Aircraft|publisher=Aerospace Publishing|location=London|page=494}} 3. ^{{cite journal|title=1928 Berlin Aero Show|journal=Flight|date=18 October 1928|pages=919–92|url=http://www.flightglobal.com/pdfarchive/view/1928/1928%20-%200977.html|accessdate=2008-10-24}} 4. ^{{cite book|last=Taylor|first=Michael J. H.|title=Jane's Encyclopedia of Aviation|year=1989|publisher=Studio Editions|location=London|pages=651}} 5. ^{{cite web| last=Mulder |first=Rob |title=Nordbayerischer Verkehrsflug GmbH - NOBA (1926-1931) |work=europeanairlines.no |url=http://www.europeanairlines.no/Arcticles_NOBA_101004.htm |accessdate=2008-10-24 |deadurl=yes |archiveurl=https://web.archive.org/web/20070928153402/http://www.europeanairlines.no/Arcticles_NOBA_101004.htm |archivedate=28 September 2007 }} 6. ^{{cite book|last1=Smith|first1=[by] J. Richard|title=Messerschmitt: an aircraft album|date=1971|publisher=Ian Allan|location=London|isbn=0-7110-0224-X}} 7. ^{{cite book |last1=Schneider |first1=Helmut |title=Flugzeug-Typenbuch 1936|date=1936 |publisher=Herm. Beyer Verlag |location=Leipzig |edition=1936 |language=German |format=pdf |page=12}} 5 : German airliners 1920–1929|Messerschmitt aircraft|Single-engined tractor aircraft|High-wing aircraft|Aircraft first flown in 1926 |
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