The Armstrong Siddeley Lynx is a seven-cylinder British aero engine created by Armstrong Siddeley. It represents a single-row adaptation of the dual-row Armstrong Siddeley Jaguar. Initial testing commenced in 1920, and production reached 6,000 units by 1939. In Italy, Alfa Romeo manufactured a licensed version delivering 200 horsepower (150 kW), known as the Alfa Romeo Lynx.
Variants
Lynx I
Introduced in 1920, rated at 150 hp (110 kW).
Lynx II
Produced in 1920, delivering 184 hp (137 kW).
Lynx III
Released in 1924 with 200 hp (150 kW) output.
Lynx IV
From 1929, providing 180 hp (130 kW).
Lynx IVA
Launched in 1930, rated at 188 hp (140 kW).
Lynx IVB
Also from 1930, with power increased to 215 hp (160 kW).
Lynx IVC
Introduced in 1929, producing between 208 / 225 hp (155 / 168 kW).
Lynx IV(G)
1929 model featuring geared propeller drive.
Lynx IV(MOD)
A modified and overhauled Lynx IV from 1929, outputting 188 hp (140 kW).
Lynx IV(S)
Fully supercharged version from 1928, rated at 200 hp (150 kW).
Developed in 1930 with increased bore and stroke. The designation changed from Lynx V to Lynx Major, later evolving into the Cheetah, essentially half of an Panther engine.
