Avro 638

infobox Aircraft
name = Club Cadet
type = Trainer
manufacturer = Avro


caption =
designer =
first flight = 1933
introduced = 1933
retired =
status =
primary user =
more users =
produced = 1933-1935
number built = 27 (17· 638 + 1· 639 + 9· 640)
unit cost =
developed from = Avro Cadet
variants with their own articles = The Avro Club Cadet was a single engined British biplane trainer aircraft designed and built by Avro in the 1930s as a development of the earlier Avro Cadet. It was planned for private and club use and, unlike the Cadet, was fitted with folding wings for ease of storage.

Design and development

The Avro 638 Club Cadet was a version of the earlier Avro Cadet, again intended for private and club use. The staggered biplane wings of the Cadet prevented the wings from folding to save hanger space, which was a disadvantge for an aircraft planned for private use, so the Club Cadet was fitted with unstaggered folding wings. The first prototype flew in May 1933, powered by an Armstrong Siddeley Genet Major radial piston engine with only 16 others being built, production finishing in 1935 cite book |last= Jackson|first= A J |title=Avro Aircraft since 1908 |edition= 2nd edition|year= 1990 |publisher= Putnam Aeronautical Books|location= London |isbn= 0-85177-834-8 ] .

A single prototype of an enclosed three-seat cabin version, the Avro 639 Cabin Cadet was built, flying in 1933 cite book |last= Jackson|first= A.J.|authorlink= |coauthors= |title= British Civil Aircraft since 1919 Volume 1|year= 1974|publisher= Putnam|location= London|isbn=0 370 10006 9 ] , but did not enter production. A second three-seat version, the Avro 640 Cadet, this time with a widened fuselage with an open cockpit for two passengers side by side in front of the pilot, was produced for joy-riding work. Nine of these were built, the first four powered by 140 hp Cirrus Hermes IV engines with the remaining five with Genet Major engines .

Operational history

While intended for private as well as club use, the majority of the Club Cadets were used by flying schools, with the largest user being Airwork, which operated five Club Cadets. These were later re-engined with 130 hp de Havilland Gypsy Moth engines, the air-cooled in-line inverted engines reducing drag and improving fuel consumption .

Variants

;Avro 638 Club Cadet:Two seat trainer aircraft, powered by 135 hp Genet Major (radial) or 130 hp Gypsy Moth (inverted in-line) engine, 17 built.;Avro 638 Club Cadet Special:One aircraft was fitted with a 140-hp (104-kW) Cirrus Hermes IVA inverted in-line engine.;Avro 639 Cabin Cadet:Enclosed cockpit, 1 built.;Avro 640 Cadet:Three seat joyriding aircraft, powered by 140 hp Cirrus Hermes IV inverted in-line (first 4 aircraft) or 135 hp Genet Major engine, 9 built.

Operators

;UK
*Airwork

pecifications (Avro 638)

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

ref=Avro Aircraft since 1908

crew=Two
capacity=
length main= 24 ft 9 in
length alt= 7.55 m
span main= 30 ft 2 in
span alt= 9.20 m
height main= 8 ft 9 in
height alt= 2.67 m
area main= 262 ft²
area alt= 24.3 m²
airfoil=
empty weight main= 1,244lb
empty weight alt= 565 kg
loaded weight main= 2,000 lb
loaded weight alt= 909 kg
useful load main=
useful load alt=
max takeoff weight main=
max takeoff weight alt=
more general=

engine (prop)=Armstrong Siddeley Genet Major 1
type of prop=seven cylinder radial
number of props=1
power main= 135 hp
power alt= 101 kW
power original=
max speed main= 100 knots
max speed alt= 115 mph, 185 km/h
cruise speed main= 87 knots
cruise speed alt= 100 mph, 161 km/h
never exceed speed main=
never exceed speed alt=
stall speed main=
stall speed alt=
range main= 283 nm
range alt= 325 mi, 523 km
ceiling main= ft
ceiling alt= m
climb rate main= ft/min
climb rate alt= m/s
loading main= 7.63 lb/ft²
loading alt= 37.4 kg/m²
thrust/weight=
power/mass main= 0.075 hp/lb
power/mass alt= 0.12 kW/kg
more performance=

armament=

avionics=

References

External links

* [http://www.aviation.technomuses.ca/collections/image_bank/dig_image.cfm?Lang=e&id=KM1914 Canadian Aviation Museum]
* [http://www.jaapteeuwen.com/ww2aircraft/html%20pages/avro%20638%20club%20cadet.htm British Aircraft of World War II]

ee also

aircontent

related=Avro Tutor - Avro Cadet

similar aircraft=

sequence=

lists=

see also=