Avro 636

infobox Aircraft
name = Type 636
type = Fighter Trainer
manufacturer = Avro


caption =
designer = Roy Chadwick
first flight = 1935
introduced = 1935
introduction=
retired =
status =
primary user = Irish Air Corps
more users =
produced = 1935
number built = 4
unit cost =
developed from =
variants with their own articles = The Avro 636 was a single-engined British fighter trainer aircraft built by Avro in the mid 1930s. Four were built for the Irish Air Corps.

Development

The Avro 636 was designed in November 1934 by Roy Chadwick, Avro's chief designer as a one or two seat fighter trainer, and was planned to reproduce the flying characteristics of single-seat fighters. It had a similar structure to the Avro Tutor, with a welded steel tube fuselage 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 ] .

The aircraft was designed to be operated as a single or two seater, with the provision for fitting two forward firing Vickers machine guns.

Operational history

Four Avro 636s were ordered by the Irish Air Corps in December 1934. These aircraft were powered by old Armstrong Siddeley Jaguar IVC engines, which had originally been purchased by the Irish in 1930 for use in Vickers Vespa army co-operation aircraft. Although the Jaguar IVC powered aircraft was planned to be designated as the Avro 667, they were always referred to as Avro 636s .

The four aircraft were delivered in August 1935, and remained in service for several years.

Variants

;Avro 636: Basic design, originally planned to be powered by 420 hp Armstrong Siddeley Jaguar IV engine.;Avro 636A: Version powered by 680 hp Armstrong Siddeley Panther XI engine.;Avro 667: Version powered by unsupercharged 460 hp Armstrong Siddeley Jaguar IVC. Four built for Irish Air Corps. Known as Avro 636 in service.

Operators

;IRL
*Irish Air Corps

pecifications (Avro 667)

aircraft specifications

plane or copter?=plane
jet or prop?=prop

Avro Aircraft since 1908

crew=Two
capacity=
length main= 27 ft 6 in
length alt= 8.38 m
span main= 33 ft 0 in
span alt= 10.06 m
height main= 11 ft 7 in
height alt= 3.53 m
area main= 261 ft²
area alt= 24.3 m²
airfoil=
empty weight main= 2,766 lb
empty weight alt= kg
loaded weight main= 3,271 lb
loaded weight alt= kg
useful load main= lb
useful load alt= kg
max takeoff weight main= lb
max takeoff weight alt= kg
more general=

engine (prop)=Armstrong Siddeley Jaguar IVC
type of prop=14-cylinder air-cooled double radial engine
number of props=1
power main= 460 hp
power alt= 343 kW
power original=
max speed main= 152 knots
max speed alt= 175 mph, 282 km/h
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= 18,000 ft
ceiling alt= 5,500 m
climb rate main= 1,200 ft/min
climb rate alt= 6.1 m/s
loading main= lb/ft²
loading alt= kg/m²
thrust/weight=
power/mass main= hp/lb
power/mass alt= W/kg
more performance=

armament=

avionics=

References

External links

ee also

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