Armstrong Siddeley Tiger

The Armstrong Siddeley Tiger was a British 14-cylinder air-cooled aircraft radial engine developed by Armstrong Siddeley in the 1930s from their Jaguar engine. The engine was built in a number of different versions but performance and dimensions stayed relatively unchanged. The Tiger VIII was the first British aircraft engine to use a two-speed supercharger.

pecifications (Tiger VIII)

pistonspecs

ref=cite book|last=Tsygulev|title=Aviacionnye motory voennykh vozdushnykh sil inostrannykh gosudarstv ( _ru. Авиационные моторы военных воздушных сил иностранных государств)|publisher=Gosudarstvennoe voennoe izdatelstvo Narkomata Oborony Soyuza SSR|location=Moscow|year=1939|url=http://base13.glasnet.ru/text/aviamotory/t.htm]
type=14-cylinder supercharged two-row air-cooled radial engine
bore=5.5 in (139.7 mm)
stroke=6.0 in (152.4 mm)
displacement=1,995 in³ (32.7 l)
length=64.6 in (1,641 mm)
diameter=50.8 in (1,290 mm)
weight=1,287 lb (584 kg)
valvetrain=Two pushrod-actuated valves per cylinder
supercharger=Two-speed centrifugal type supercharger, first gear ratio 5.34:1, second gear 7.96:1.
turbocharger=
fuelsystem=Claudel-Hobson carburetor
fueltype=87 octane rating gasoline
oilsystem=
coolingsystem=Air-cooled
power=
*907 hp (677 kW) at 2,375 rpm for takeoff
*850 hp (634 kW) at 2,450 rpm at 7,150 ft (2,180 m) – first supercharger gear
*771 hp (575 kW) at 2,450 rpm at 16,240 ft (4,950 m) – second supercharger gear
*582 hp (434 kW) at 2,200 rpm economy cruise
specpower=0.45 hp/in³ (20.7 kW/l)
compression=6.25:1
fuelcon=
specfuelcon=0.49 lb/(hp•h) (294 g/(kW•h))
oilcon=0.21–0.42 oz/(hp•h) (8–16 g/(kW•h))
power/weight=0.70 hp/lb (1.16 kW/kg)
reduction_gear=Spur, 0.594:1.

pecifications (Tiger IX)

pistonspecs

ref=
type=14-cylinder supercharged two-row air-cooled radial engine
bore=5.5 in (139.7 mm)
stroke=6.0 in (152.4 mm)
displacement=1,995 in³ (32.7 l)
length=68.3 in (1,736 mm)
diameter=50.9 in (1,292 mm)
weight=1,219 lb (553 kg)
valvetrain=Two pushrod-actuated valves per cylinder
supercharger=Single-speed centrifugal type supercharger, gear ratio 5.4:1.
turbocharger=
fuelsystem=Claudel-Hobson carburetor
fueltype=87 octane rating gasoline
oilsystem=
coolingsystem=Air-cooled
power=
*868 hp (647 kW) at 2,375 rpm for takeoff
*794 hp (592 kW) at 2,450 rpm at 7,220 ft (2,200 m)
*552 hp (412 kW) at 2,150 rpm economy cruise
specpower=0.44 hp/in³ (19.8 kW/l)
compression=6.2:1
fuelcon=
specfuelcon=0.47 lb/(hp•h) (280 g/(kW•h))
oilcon=0.39 oz/(hp•h) (15 g/(kW•h))
power/weight=0.71 hp/lb (1.17 kW/kg)
reduction_gear=Spur, 0.594:1.

Applications

* Armstrong Whitworth Ensign Mk.I
* Armstrong Whitworth Whitley Mk.I/II/III
* Blackburn Shark Mk.I/II

References

* http://www.oldengine.org/members/diesel/Duxford/ukaero1.htm
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