- Development and design
- Variants
- Operators
- Specifications (Learjet 55)
- References Notes Bibliography
- External links
| name= Learjet 55 | image= File:Learjet_55_(2323440048).jpg | caption=Learjet 55 on final approach }}{{Infobox Aircraft Type | type= Business jet | national origin= United States | manufacturer= Learjet | designer= | first flight= 19 April 1979 | introduced= 1981 | retired= | status= Active, not in production | primary user= | number built= 147 | produced= 1979–1987 | developed from= | variants with their own articles=
}} |
The Learjet 55 "Longhorn" is an American business jet manufactured by Learjet. Development and designThe Learjet 50 series was first announced at the 1977 Paris air show with larger cabins than the existing Learjets. By 2018, a Learjet 55 can be had for $1 million or less.[1] Variants- Learjet 54
Proposed 11-seat variant, not built. - Learjet 55
Production variant, 126 built. - Learjet 55B
1986 - Improved version with a glass cockpit, improved take-off performance and increased range, 8 built. - Learjet 55C
1987 - New rear underfuselage design, delta fins to increase stability and reduced the landing speed. - Learjet 55C/ER
Extended-range version of the Learjet 55C. - Learjet 55C/LR
Long-range version of the Learjet 55C, fitted with an extra tank, carrying an extra {{convert|259|lb|kg|abbr=on}} of fuel in the tail cone. - Learjet 56
Proposed eight-seat version, not built. Operators- {{DOM}}
- Servicios Aéreos Profesionales[2]
Specifications (Learjet 55){{Aircraft specs
|ref=
|prime units?=imp
|genhide=
|crew=2
|capacity=10
|length m=16.80
|length ft=
|length in=
|length note=
|span m=13.35
|span ft=
|span in=
|span note=
|upper span m=
|upper span ft=
|upper span in=
|upper span note=
|mid span m=
|mid span ft=
|mid span in=
|mid span note=
|lower span m=
|lower span ft=
|lower span in=
|lower span note=
|swept m=
|swept ft=
|swept in=
|swept note=
|dia m=
|dia ft=
|dia in=
|dia note=
|width m=
|width ft=
|width in=
|width note=
|height m=4.48
|height ft=
|height in=
|height note=
|wing area sqm=24.57
|wing area sqft=
|wing area note=
|swept area sqm=
|swept area sqft=
|swept area note=
|volume m3=
|volume ft3=
|volume note=
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=13000
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=21500
|max takeoff weight note=
|lift kg=
|lift lb=
|lift note=
|more general=
|eng1 number=2
|eng1 name=Garrett TFE731-3A-2B
|eng1 type=turbofan aero-engine
|eng1 kw=
|eng1 hp=
|eng1 kn=
|eng1 lbf=3700
|eng1 note=
|power original=
|thrust original=
|perfhide=
|max speed kmh=871
|max speed mph=
|max speed kts=
|max speed note=at 30,000ft (9145m)
|max speed mach=
|cruise speed kmh=744
|cruise speed mph=
|cruise speed kts=
|cruise speed note=at 49,000ft (14935m)
|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=
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|minimum control speed note=
|range km=
|range miles=2492
|range nmi=
|range note=with four passengers and fuel reserves
|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=
|ceiling m=
|ceiling ft=51000
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2
|wing loading lb/sqft=
|wing loading note=
|disk loading kg/m2
|disk loading lb/sqft=
|disk loading note=
|power/mass met=
|power/mass imp=
|power/mass note=
|thrust/weight=
|thrust/weight note=
|more performance=
|avionics=
}}
ReferencesNotes1. ^{{cite magazine |url= https://www.ainonline.com/sites/default/files/full-issues/ain_1218.pdf |title= For many models, market hitting the apex |magazine= Aviation International News |author= Mark Huber |date= December 2018 |pages= 20-21, 24}}
2. ^{{cite web |url=http://www.sapair.com/aircrafts.html |title=Archived copy |accessdate=2014-09-29 |deadurl=yes |archiveurl=https://web.archive.org/web/20141022174141/http://www.sapair.com/aircrafts.html |archivedate=2014-10-22 |df= }}
Bibliography{{refbegin}}- {{cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985)|year= |publisher= Orbis Publishing|location= |issn=|pages=}}
- {{cite book |last=Simpson |first= R.W.|authorlink= |coauthors= |title= Airlife's General Aviation|year=1991 |publisher= Airlife Publishing|location= England |isbn=1-85310-194-X|pages=}}
{{refend}}External links{{commons category|Learjet 55}}{{Learjet}} 6 : Learjet aircraft|United States business aircraft 1970–1979|Twinjets|T-tail aircraft|Low-wing aircraft|Aircraft first flown in 1979 |