Vickers Vendace

infobox Aircraft
name = Vendace
type = Trainer
manufacturer = Vickers


caption =
designer =
first flight = 1926
introduced =
introduction= 1928
retired = 1933
status =
primary user = Bolivia
more users =
produced =
number built = 5
unit cost =
developed from =
variants with their own articles = The Vickers Vendace was a British trainer aircraft of the 1920's. Originally designed as a float plane trainer for the Royal Air Force, three were sold to Bolivia.

Development

The British Air Ministry issued Specification 5A/24 for a float plane trainer in October 1924. To meet this requirement, Vickers designed a two seat biplane, the Vickers Type 120 Vendace I. The Air Ministry placed an order in August 1925 for a single prototype, as well as competing aircraft from Parnall and Blackburn (the Parnall Perch and Blackburn Sprat).

The Vendace I was a two bay biplane with folding wooden wings and a steel tube fuselage, powered by a Rolls-Royce Falcon engine. Its undercarriage could be changed from floats to wheels in 10 minutes, while its fuel supply was held in two streamlined tanks above the upper wing.

The Vendace was flying by March 1926, and underwent successful trials as a landplane in 1926, including operation from the aircraft carrier HMS" Furious", Andrews and Morgan 1988, p,195] these being followed by testing in seaplane mode at the Marine Aircraft Experimental Establishment, Felixstowe, the following year. Despite the successful trials, the RAF did not order production, although they did retain the aircraft for experimental purposes. Donald 1997, p.893]

Vickers built a second aircraft, the Type 157 Vendace II, as a private venture, with an ADC Nimbus (an inline six-cylinder engine derived from the Siddeley Puma) replacing the Falcon of the Vendace I. This first flew in November 1927, being sold to the Aircraft Operating Company for survey operations in South America. Andrews and Morgan 1988, p.196.] [ [http://www.flightglobal.com/PDFArchive/View/1928/1928%20-%200526.html Air Survey Developments] . "Flight", 21 June 1928. London. Page 474. Retrieved 23 February 2008]

Development continued with the Hispano-Suiza 8F powered Type 155 Vendace III, of which three were sold to Bolivia for use as trainers. Andrews and Morgan 1988, p.197.]

Operational history

The three Bolivian Vendaces entered service with the Escuela Militar de Aviación in October 1928, [ Klaus, Erich. [http://www.aeroflight.co.uk/waf/americas/bolivia/Bolivia-af-V155.htm "Bolivia Air Force Aircraft Types: Vickers 155 Vendace III"] "Aeroflight.co.uk". 15 March 2007. Retrieved 23 February 2008.] They experienced some engine problems, blamed on the dusty conditions in the Bolivian summer, Andrews and Morgan 1988, p.198.] but remained in service until 1933. [ Klaus, Erich. [http://www.aeroflight.co.uk/waf/americas/bolivia/Bolivia-af_all-time-chron.htm "Bolivia Air Force: All-Time Listing (Chronological)".] "Aeroflight.co.uk". 25 August 2007. Retrieved 23 February 2008.]

Variants

;Type 120 Vendace I: Prototype convertable landplane/seaplane for RAF, powered by 275 hp (207 kW) Rolls-Royce Falcon III engine. One (serial number "N208") built.;Type 157 Vendace II: Private venture aircraft powered by 300 hp (224 kW) ADC Nimbus engine. One (registered "G-EBPX") built, converted for airborne survey purposes.;Type 155 Vendace III:Trainer for Bolivia, powered by 300 hp (224 kW) Hispano-Suiza 8F engine. Three built.

Operators

;BOL;UK
*Royal Air Force

pecifications (Vendace III)

aircraft specifications
plane or copter?=plane
jet or prop?=prop

ref=Vickers Aircraft since 1908 Andrews and Morgan 1988, p.206]
crew=Two
capacity=
length main= 33 ft 3 in
length alt= 10.14 m
span main= 44 ft 7 in
span alt= 13.59 m
height main= 12 ft 9 in
height alt= 3.89 m
area main= 533 ft²
area alt= 49.5 m²
airfoil=
empty weight main= 2,604 lb
empty weight alt= 1,184 kg
loaded weight main= 3,207 lb
loaded weight alt=1,458 kg
useful load main=
useful load alt=
max takeoff weight main=
max takeoff weight alt=
more general=

engine (prop)=Hispano-Suiza 8F
type of prop=V-8 liquid cooled engine
number of props=1
power main= 300 hp
power alt= 224 kW
power original=
max speed main= 103 knots
max speed alt= 119 mph, 192 km/h
max speed more= at 19,000 ft (5,790 m)
cruise speed main=
cruise speed alt=
never exceed speed main=
never exceed speed alt=
stall speed main=
stall speed alt=
range main=
range alt=
ceiling main= 25,800 ft
ceiling alt= 7,870 m
ceiling more=(absolute)
climb rate main= 720 ft/min
climb rate alt= 3.66 m/s
loading main= 6.02 lb/ft²
loading alt= 29.5 kg/m²
thrust/weight=
power/mass main= 0.094 hp/lb
power/mass alt= 0.15 kW/kg
more performance=

armament=

avionics=

ee also

aircontent

related=

similar aircraft=

sequence=

lists=
* List of aircraft of the RAF
see also=

References

Notes

Bibliography

* Andrews, C.F. and Morgan, E.B. "Vickers Aircraft since 1908". London: Putnam. Second Edition, 1988. ISBN 0 85177 815 1.
* Donald, David (ed.). "The Encyclopedia of World Aircraft". Aerospace Publishing. 1997. ISBN 1-85605-375-X.
*"The Vickers 'Vendace': An Efficient Land or Sea Training Biplane". "Flight". March 18 1926. London. p. 165-167.

External links

* [http://www.aviastar.org/air/england/vickers_vendace.php Vickers Vendace] Virtual Aircraft Museum.

* [http://www.britishaircraft.co.uk/aircraftpage.php?ID=887 Vickers Vendace] British Aircraft Directory.