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Armstrong Siddeley Tiger Aero-Engines

The final evolution in the Jaguar series was the Tiger, which retained the Panther's 5.25 inch bore but increased the stroke to 6 inches, giving a swept volume of 32.7 litres.  The engine's power ranged from 570hp in the MkI version through to 860hp in the MkVIII. Armstrong Siddeley had previously used the Tiger name in 1918 for a V12 aero-engine

The MkIII Tiger was the first aircraft in the world to be fitted with a two-stage supercharger, an Armstrong Siddeley patented device.

Armstrong Siddelet Tiger Engine.jpg
Armstrong Siddeley tiger engine.jpg
Armstrong Siddeley Tiger Engine.jpg
Armstrong Siddeley Tiger Aero-Engine
Some examples of Tiger powered aircraft are shown below.
Imperial-Ensign-credit The Times.jpg
Armstrong Whitworth Ensign V1_edited.jpg
Blackburn Sharp RCAFTig er IV & VI.jpg
AW Whitley AS Tiger Engines
AW Whitley    Credit World War Photos
Whitley_Production_K9029_K7189_InPixio.jpg
Whitley_Production_K9029_K7189.jpg
Armstrong Whitworth Ensign powered by Armstrong Siddeley Tiger Engines
.jpg
ensign1a1lr.jpg
AW 27 Croydon cropped.jpg
Armstrong Whitworth Ensign powered by Tiger IXC in flight and unloading passengers at Croydon Aerodrome
Heinkel HE46d Panther
Heinkel HE46d reengine with Armstrong Whitworth Tiger engine.jpg
HE113a.jpg
HE113b.jpg
HE113c.jpg
Tiger VIII with detailed description of salient parts. Best viewed by clicking on the image to enlarge it.
Tiger Engine exploded view.jpg
Tiger Engine exploded view v2 paint.jpg
Armstrong Siddeley Tiger Aero-Engine Exploded Views
AW 19.jpg
AW 16     Credit Flight International 10441S
Armstrong_Whitworth_AW23_world war photos.jpg
AW 23       Credit World War Photos
AW 27 Ensign at Croydon Aerodrom.jpg
AW Ensign at Crydon Aerodrome  

Leading Particulars of Tiger Engines

 

Engine Type    14-cylinder, two-row air-cooled, radial aero-engine

Bore                   5.5 inch     (127 mm)                 
Stroke                6.0 inch     (140 mm)
Volume             1996 cu. in. (32.7litre)

Tractor Drive    Geared Epicyclic

Variants

Mk I,

    1932 570hp (419kW), Geared Fan, Compression ratio 5.2:1 

MK III

     193? 610hp (455kW), Geared Fan, Compression ratio 5.35:1

Mk IV

     1934 720hp (530kW), Geared Fan, Compression ratio 5.35:1

Mk VI

     1936 760hp (589kW), Geared Fan, Compression ratio 6.25:1

Mk VIC

  No details known

Mk VIII

     1936 860hp (633kW), Two-speed Supercharger, Compression ratio 6.2:1

Mk IX

     1936 810hp (596kW), Geared Fan, Compression ratio 6.2:1

Mk IXC

     1938 805hp (592kW), Geared Fan, Compression ratio 6.2:1

Mk X

     193? 860hp  (633kW), Geared Fan.Compression ratio 6.2:1

Note: The plain fan had no supercharging effect; the geared fan gave a mild supercharging effect.

Power Curve Tiget VIII.jpg


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