Elizalde Tigre IV

Tigre IV
Preserved Elizalde Tigre.
Type	Piston inline aero-engine
Manufacturer	Elizalde SA.

The Elizalde Tigre IV, also known as the ENMA Tigre IV, is a Spanish four-cylinder inverted air-cooled engine designed and built by Elizalde SA shortly after the Spanish Civil War.^[1]

Variants

Tigre IVA 

125 hp version.

Tigre IVB 

150 hp version.

Applications

• CASA 1.131
• Dornier Do 25

Survivors

Approximately 30 ENMA Tigre IV engines remain airworthy in Britain (as of July 2009), all powering CASA 1.131 aircraft which are Spanish licensed-built versions of the Bücker Jungmann.^[2]

Specifications (Tigre IVA)

ENMA Tigre IVB installed in a Jungmann biplane

Data from: Janes^[3]

General characteristics

• Type: Four-cylinder, in-line, inverted, air-cooled
• Bore: 120 mm (4.72 in)
• Stroke: 140 mm (5.512 in)
• Displacement: 6.3 L (386.3 in³)
• Length: 1144 mm (43.89 in)
• Width: 400 mm (15.76 in)
• Height: 877 mm (34.55 in)
• Dry weight: 120 kg (264 lbs)

Components

• Valvetrain: Overhead valve
• Fuel system: Carburettor
• Cooling system: Air-cooled

Performance

• Power output: 93 kW (125 hp) at 2,200 rpm
• Compression ratio: 6:1
• Power-to-weight ratio: 0.77 kW/kg (0.47 hp.lb)

See also

Comparable engines

• Alfa Romeo 110
• Cirrus Major
• de Havilland Gipsy Major
• Hirth HM 504
• Menasco C4

Related lists

• List of aircraft engines

References

Notes

1. Gunston 1989, p.54.
2. G-INFO - UK CAA database Retrieved: 29 July 2009
3. Janes 1998, p.299

Bibliography

• Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1998. ISBN 0-517-67964-7
• Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9

External links