Lancair Sentry
{{short description|American light kit airplane}}
{{Use dmy dates|date=April 2019}}
{{Use American English|date=April 2019}}
| {{Infobox aircraft begin
| name= Sentry | image= | caption= }}{{Infobox aircraft type | type=Amateur-built aircraft | national origin=United States | manufacturer=Lancair | designer= | first flight=September 2001 | introduced= | retired= | status=Production completed (2002) | primary user= | more users= | produced= 2002 | number built=2 | developed from= Lancair IV | variants with their own articles= }} |
The Lancair Sentry is an American amateur-built aircraft that was designed and produced by Lancair of Redmond, Oregon, introduced in 2002. The aircraft was supplied as a kit for amateur construction, although it was also intended as a production military trainer aircraft. First flown in September 2001, only two were ever completed.{{cite web|url=http://www.aero-news.net/index.cfm?do=main.textpost&id=872b2329-0d82-433f-88ff-44c41a799251|title=Lancair Flies New 'Sentry' Turbo-Prop - Aero-News Network|website=www.aero-news.net|access-date=10 April 2019}}{{cite web|url=https://www.whiplashaero.com/|title=Home|website=Whiplash Aero|access-date=10 April 2019}}{{cite web|url=https://www.flightglobal.com/news/articles/lancair-aims-sentry-racer-at-military-market-155588/|title=Lancair aims Sentry racer at military market|date=1 October 2002|website=Flightglobal.com|access-date=10 April 2019}}{{cite web|url=http://www.pilotfriend.com/experimental/acft4/30.htm|title=Lancair Sentry|website=www.pilotfriend.com|access-date=10 April 2019}}
The design was intended to compete with other similar two-seat civil designs, such as the Thunder Mustang and the Turbine Legend. Military sales prospects included the Mexican Navy, but no orders were forthcoming.
Design and development
The Sentry is a two-seat development of the four-seat Lancair IV, with the door-accessed cabin replaced by a canopy. It also has an enlarged vertical tail fin.{{cite web|url=https://www.skybrary.aero/index.php/LNT4|title=LANCAIR Sentry 4T - SKYbrary Aviation Safety|website=www.skybrary.aero|access-date=10 April 2019}}
The aircraft features a cantilever low-wing, a two-seats-in-tandem enclosed cockpit under a rear-hinged bubble canopy, retractable tricycle landing gear and a single engine in tractor configuration.
The aircraft is made from composite materials, predominantly carbon fiber reinforced polymer. Its {{convert|30.2|ft|m|1|abbr=on}} span wing employs a McWilliams RXM5-217 root airfoil, tapering to a NACA 64-212 tip airfoil. The wing has an area of {{convert|98|sqft|m2|abbr=on}} and mounts flaps. The standard engine used is the {{convert|708|hp|kW|0|abbr=on}} Walter M601D turboprop powerplant powering an American {{convert|82|in|cm|1|abbr=on}} three-bladed Hartzell Propeller or a Czech {{convert|84|in|cm|1|abbr=on}} Avia Propeller.{{cite web|url = https://m-selig.ae.illinois.edu/ads/aircraft.html|title = The Incomplete Guide to Airfoil Usage |access-date = 9 April 2019|author = Lednicer |first = David |year = 2010}}
Specifications (Sentry)
{{Aircraft specs
|prime units?=imp
|genhide=
|crew=one
|capacity=one passenger
|length m=
|length ft=26
|length in=
|length note=
|span m=
|span ft=30.2
|span in=
|span note=
|height m=2.40
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=98
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=2200
|empty weight note=
|gross weight kg=
|gross weight lb=3550
|gross weight note=
|fuel capacity={{convert|125|u.s.gal}}
|more general=
|eng1 number=1
|eng1 name=Walter M601D
|eng1 type=turboprop aircraft engine
|eng1 kw=
|eng1 hp=708
|prop blade number=3
|prop name=Hartzell Propeller constant speed propeller
|prop dia m=
|prop dia ft=
|prop dia in=82
|prop note=
|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=380
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=74
|stall speed kts=
|stall speed note=power off
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=1150
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=4000
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}
References
{{reflist}}
External links
- [http://www.airliners.net/photo/Untitled/Lancair-Sentry/814176 Photo of a Sentry]
{{Lancair aircraft}}
Category:2000s United States sport aircraft
Category:Single-engined piston aircraft
Category:Single-engined tractor aircraft