Leduc 0.21
{{Use dmy dates|date=November 2024}}
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{{Citation style|date=January 2021}}
| {{Infobox Aircraft Begin
| name=0.21 | image=Leduc020.jpg | caption=Leduc 0.20 }}{{Infobox Aircraft Type | type=Research aircraft | national origin=France | manufacturer=Breguet | designer=René Leduc | first flight=7 August 1953 | introduced= | retired= | status= | primary user= | number built=2 | developed from= | variants with their own articles= }} |
The Leduc 0.21 was a research aircraft built in France in 1953 to refine the practicalities of ramjet propulsion. Initially proposed as the 0.20, it was essentially similar to its predecessor, the Leduc 0.10, but scaled up by around 30%, with tip tanks added to the wings. It was not capable of take-off under its own power, and had to be carried aloft and released.
Two examples were built and completed a very detailed flight test program from 1953 to 1956 to develop automated, operationally viable throttle controls for the ramjet. This included a total of 284 free flights. Designed for subsonic speeds only, the 0.21 reached a top speed of Mach 0.95.
Specifications
{{Aircraft specs
|ref=Jane's All the World's Aircraft 1956–57{{Harvnb|Bridgman|1956|pp=143–144}}
|prime units?=met
|genhide=
|crew=One
|capacity=
|length m=12.50
|length ft=
|length in=
|span m=11.60
|span ft=
|span in=
|height m=2.75
|height ft=
|height in=
|wing area sqm=22.0
|wing area sqft=
|empty weight kg=3800
|empty weight lb=
|gross weight kg=6000
|gross weight lb=
|fuel capacity=
|eng1 number=1
|eng1 name=Leduc
|eng1 type=ramjet
|eng1 kn=
|eng1 lbf=14300
|eng1 kn-ab=
|eng1 lbf-ab=
|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed mach=0.87
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|range km=
|range miles=
|range nmi=
|endurance=15 minutes
|ceiling m=20000
|ceiling ft=
|climb rate ms=200
|climb rate ftmin=
|climb rate note=at sea level
|more performance=
|avionics=
}}
{{aircontent
|see also=
|related=
|similar aircraft=
|lists=
}}
References
{{reflist}}
Bibliography
- {{cite book |last=Bridgman |first=Leonard |title=Jane's All the World's Aircraft 1956–57 |year=1956 |location=New York |publisher=The McGraw-Hill Book Company }}
- {{cite book |last1=Buttler |first1=Tony|first2=Jean-Louis|last2=Delezenne |title=X-Planes of Europe: Secret Research Aircraft from the Golden Age 1946–1974|date=2012 |publisher=Hikoki Publications |location=Manchester, UK |isbn=978-1-902-10921-3|name-list-style=amp}}
- {{cite book |last1=Carbonel |first1=Jean-Christophe |title=French Secret Projects |date=2016 |publisher=Crecy Publishing |location=Manchester, UK|volume=1: Post War Fighters |isbn=978-1-91080-900-6}}
- {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=570 }}
- {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 900 Sheet 5}}
External links
{{commons category|Leduc 020}}
- http://xplanes.free.fr/stato/stato-2.html
- test flight footage for Leduc 0.10, 0.16, 0.21, and 0.22 https://www.youtube.com/watch?v=CzUJrweHxso
{{Leduc aircraft}}
Category:1950s French experimental aircraft
Category:Ramjet-powered aircraft
Category:Aircraft first flown in 1953
Category:Single-engined jet aircraft
Category:Aircraft with retractable conventional landing gear