Fairchild BQ-3

{{Use American English|date=October 2024}}

{{Use dmy dates|date=October 2024}}

{{Infobox aircraft begin

|name = XBQ-3

|image = Fairchild XBQ-3.jpg

|size = 300px

|alt =

|caption =

|long caption =

}}{{Infobox aircraft type

|type = Flying bomb

|national origin = United States

|manufacturer = Fairchild Aircraft

|designer =

|design group =

|first flight = July 1944

|introduced =

|introdction =

|retired =

|status =

|primary user = United States Army Air Forces

|more users =

|produced =

|number built = 2

|program cost =

|unit cost =

|developed from = AT-21 Gunner

|variants with their own articles =

|developed into =

}}

The Fairchild BQ-3, also known as the Model 79, was an early expendable unmanned aerial vehicle – referred to at the time as an "assault drone" – developed by Fairchild Aircraft from the company's AT-21 Gunner advanced trainer during the Second World War for use by the United States Army Air Forces. Two examples of the type were built and flight-tested, but the progress of guided missiles rendered the assault drone quickly obsolete, and the type was not produced.

Design and development

Development of the BQ-3 began in October, 1942, under a program for the development of "aerial torpedoes", later and more commonly referred to as "assault drones", that had been instigated in March of that year. Fairchild was awarded a contract for the construction of two XBQ-3 prototypes, based largely on the AT-21 Gunner advanced gunnery trainer already in United States Army Air Forces service.Parsch 2003

The XBQ-3 was a twin-engined, low-wing aircraft, fitted with retractable tricycle landing gear and a twin-finned empennage; although the aircraft was intended to be operated by radio control with television assist, a two-seat cockpit was included in the design for testing and ferry flights.Jane's 1947, p.424. Power was provided by two Ranger V-770 inline piston engines of {{convert|520|hp}} each;Ross 1951, p.117. up to {{convert|4000|lb}} of explosives could be carried by the aircraft in unmanned configuration. Like the contemporary Fleetwings BQ-2, the aircraft would be destroyed in the act of striking the target.

Flight testing

The first flight of the XBQ-3 took place in July 1944; later that month, one of the prototypes was severely damaged in a forced landing.Werrell 1985, p.30. Despite the accident, flight testing continued; however, the assault drone was determined to have no significant advantage over conventional bombers, and advances in the field of guided missiles were rapidly rendering the concept obsolete.Craven and Cate 1955, p.254. As a result, the program was cancelled towards the end of 1944.

Specifications (XBQ-3)

{{Aircraft specs

|ref=

|prime units?=imp

|crew=1 (optional)

|capacity=

|length m=

|length ft=52

|length in=8

|length note=

|span m=

|span ft=37

|span in=

|span note=

|height m=

|height ft=31

|height in=1

|height note=

|wing area sqm=

|wing area sqft=

|wing area note=

|aspect ratio=

|airfoil=

|empty weight kg=

|empty weight lb=

|empty weight note=

|gross weight kg=

|gross weight lb=15300

|gross weight note=

|max takeoff weight kg=

|max takeoff weight lb=

|max takeoff weight note=

|fuel capacity=

|more general=

|eng1 number=2

|eng1 name=Ranger V-770-15

|eng1 type=inline piston engines

|eng1 kw=

|eng1 hp=520

|eng1 shp=

|eng1 note=

|power original=

|prop blade number=

|prop name=

|prop dia m=

|prop dia ft=

|prop dia in=

|prop note=

|perfhide=

|max speed kmh=

|max speed mph=220

|max speed kts=

|max speed note=

|max speed mach=

|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=

|minimum control speed kmh=

|minimum control speed mph=

|minimum control speed kts=

|minimum control speed note=

|range km=

|range miles=1500

|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=

|ceiling m=

|ceiling ft=

|ceiling note=

|g limits=

|roll rate=

|glide ratio=

|climb rate ms=

|climb rate ftmin=

|climb rate note=

|time to altitude=

|lift to drag=

|wing loading kg/m2=

|wing loading lb/sqft=

|wing loading note=

|fuel consumption kg/km=

|fuel consumption lb/mi=

|power/mass=

|more performance=

|armament=* {{convert|4000|lb}} warhead

|guns=

|bombs=

|rockets=

|missiles=

|hardpoints=

|hardpoint capacity=

|hardpoint rockets=

|hardpoint missiles=

|hardpoint bombs=

|hardpoint other=

|avionics=

}}

See also

{{aircontent

|see also=

|related=

|similar aircraft=

|lists=

}}

References

{{commons category}}

{{reflist}}

Further reading

{{refbegin}}

  • {{cite book|editor=Bridgman, Leonard|title=Jane's All the World's Aircraft 1947|year=1947|publisher=MacMillan|location=London|asin=B000RMJ7FU}}
  • {{cite book|editor1=Craven, Wesley F |editor2=Cate, James L |title=The Army Air Forces in World War II|volume=VI, Men & Planes|year=1955|publisher=University of Chicago Press|location=Chicago, IL|lccn=48-3657}}
  • {{cite web |url=http://www.designation-systems.net/dusrm/app1/bq-3.html |title= Fairchild BQ-3 |first=Andreas |last=Parsch |year=2003 |work=Directory of U.S. Military Rockets and Missiles, Appendix 1: Early Missiles and Drones |publisher=designation-systems.net |access-date=2013-01-23}}
  • {{cite book |last1=Ross |first1=Frank |title=Guided Missiles: Rockets & Torpedoes |url=https://archive.org/details/guidedmissilesro00ross |url-access=registration |year=1951 |publisher=Lothrop, Lee & Shepard |location=New York |asin=B001LGSGX0 }}
  • {{cite book|last=Werrell|first=Kenneth P.|title=The Evolution of the Cruise Missile|year=1985|publisher=Air University Press|location=Maxwell AFB, Alabama|isbn=978-1478363057}}

{{refend}}

{{Fairchild aircraft}}

{{US unmanned aircraft}}

BQ-1

Category:1940s United States bomber aircraft

Category:Unmanned aerial vehicles of the United States

Category:World War II guided missiles of the United States

Category:Cancelled military aircraft projects of the United States

Category:Mid-wing aircraft

Category:Aircraft first flown in 1944

Category:Twin piston-engined tractor aircraft

Category:Aircraft with retractable tricycle landing gear