- Design and development
- Operators
- Specifications
- See also
- Notes
- References
{{Use dmy dates|date=March 2017}}{{Use British English|date=March 2017}}{{Refimprove|date=July 2010}}name = Baynes Bat | image = Baynes_Bat.jpg | caption = }}{{Infobox Aircraft Type | type = Experimental glider | manufacturer = Slingsby | designer = L.E. Baynes AFRAeS | first flight = July 1943 | introduced = | retired = | status = | primary user = Royal Aircraft Establishment | more users = | produced = | number built = 1 | unit cost = | variants with their own articles = }} |
The Baynes Bat (or sometimes Slingsby-Baynes Bat) was an experimental glider of the Second World War, designed by L. E. Baynes. It was used to test the tailless design that he had suggested as a means to convert tanks into temporary gliders so they could be flown into battle. Design and developmentIn the late 1930s, armies were looking for a way to airlift heavy military units. There were then no cargo aircraft big enough to lift a tank, and even if such a large aircraft had been created it would have needed many special facilities. A solution which was explored during the Second World War was to tow tanks as gliders, and for this wings had to be added. Most designs were based on straight wings with extended empennage and stabilizers. The design of L.E. Baynes AFRAeS in 1941 was for a 100 ft wingspan "Carrier Wing Glider" consisting chiefly of a swept wing with vertical stabilizers on the wingtips. A 1/3 scale prototype was built entirely of wood in 1943 by Slingsby Sailplanes at Kirkbymoorside, and the Baynes Bat made its first flight in July 1943 at the Airborne Forces Experimental Establishment at RAF Sherburn-in-Elmet, Yorkshire. Most of the test flights were piloted by Flight Lieutenant Robert Kronfeld. Tests were successful, but the project was abandoned because a suitable tank was not then available and a decision had been made to develop gliders which could carry heavy equipment within their fuselages. The strategists were not convinced of the practicality of retrieving large numbers of Baynes Bats from the field, but in wartime this was not a critical factor. The one Bat which had been built was the first tailless monoplane with flaps to be available for research and it was flown extensively by the Royal Aircraft Establishment to test the stability and control of tailless aircraft. The Bat was sold as surplus in October 1946 and entered on the British Gliding Association register in November 1947. The Bat was last seen in 1958, lying behind a hangar at Croydon Airport. Operators- {{UK}}
- Airborne Forces Experimental Establishment
- Royal Aircraft Establishment
Specifications{{Aircraft specs |ref=Aeroplane Monthly[1] & Ellison 1971.[2] |prime units?=imp |crew=one |capacity= |length m=3.46 |length ft= |length in= |length note= |span m=10.16 |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=1.340 |height ft= |height in= |height note= |wing area sqm=14.86 |wing area sqft= |wing area note= |swept area sqm= |swept area sqft= |swept area note= |volume m3= |volume ft3= |volume note= |aspect ratio=7 |airfoil= |empty weight kg=346.1 |empty weight lb= |empty weight note= |gross weight kg=436.8 |gross weight lb= |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |fuel capacity= |lift kg= |lift lb= |lift note= |more general=
|eng1 number= |eng1 name= |eng1 type= |eng1 kw= |eng1 hp= |eng1 shp= |eng1 kn= |eng1 lbf= |eng1 note= |power original= |thrust original= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 name= |eng2 type= |eng2 kw= |eng2 hp= |eng2 shp= |eng2 kn= |eng2 lbf= |eng2 note= |eng2 kn-ab= |eng2 lbf-ab= |eng3 number= |eng3 name= |eng3 type= |eng3 kw= |eng3 hp= |eng3 shp= |eng3 kn= |eng3 lbf= |eng3 note= |eng3 kn-ab= |eng3 lbf-ab= |more power= |prop blade number= |prop name= |prop dia m= |prop dia ft= |prop dia in= |prop dia note= |rot number= |rot dia m= |rot dia ft= |rot dia in= |rot area sqm= |rot area sqft= |rot area note=
|perfhide= |max speed kmh=193 |max speed mph= |max speed kts= |max speed note= |max speed mach= |cruise speed kmh=129 |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh=64 |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= |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= |sink rate ms= |sink rate ftmin= |sink rate note= |lift to drag= |wing loading kg/m2=29.3 |wing loading lb/sqft= |wing loading note= |disk loading kg/m2= |disk loading lb/sqft= |disk loading note= |fuel consumption kg/km= |fuel consumption lb/mi= |power/mass= |thrust/weight= |more performance=
|armament=
|guns= |bombs= |rockets= |missiles= |hardpoints= |hardpoint capacity= |hardpoint rockets= |hardpoint missiles= |hardpoint bombs= |hardpoint other= |avionics= }}See also{{aircontent |see also=- Antonov A-40 - the Soviet "Flying Tank"
- General Aircraft Hamilcar, a British glider introduced during the war to carry light tanks.
- Tetrarch tank - a British tank light enough to be carried by air
|related= |similar aircraft= |lists= }}Notes1. ^vintagegliderclub.com {{webarchive|url=https://web.archive.org/web/20070311105739/http://www.vintagegliderclub.org/vgc_news/bat.htm |date=11 March 2007 }} 2. ^{{cite book|last=Ellison|first=Norman|title=British Gliders and Sailplanes 1922-1970|publisher=Adam & Charles Black|location=London|date=1971|isbn=0 7136 1189 8}}
References{{commons category|Baynes Bat}}- [https://web.archive.org/web/20070311105739/http://www.vintagegliderclub.org/vgc_news/bat.htm The Baynes Bat]
6 : British experimental aircraft 1940–1949|Glider aircraft|Slingsby aircraft|Cancelled military aircraft projects of the United Kingdom|Flying wings|Aircraft first flown in 1943 |