The Gnome-Rhône 14N was a 14-cylinder two-row air-cooled radial engine designed and manufactured by Gnome-Rhône just before the start of World War II. A development of the Gnome-Rhône 14K, the 14N was used on several French and even one German aircraft.

Design and development

The 14K's reliability was poor, so Gnome-Rhône carried out major redesign, using different materials for the pistons and valves, and enlarging the cooling fins to increase surface area by 39%. The 14N was introduced in 1937 and was quickly installed on several aircraft models. In 1939, minor improvements allowed Gnome-Rhône to increase the compression ratio from 6.1:1 to 6.8:1, which increased power. The 14N was further developed into the Gnome-Rhône 14R featuring a 2-stage supercharger, but this type was not widely used until after World War II as production of improved engines was restricted by the armistice with Germany.

Variants

Data from:Aircraft engines of the World 1945, Aircraft engines of the World 1946

Applications

• Amiot 351 (1 × 14N-38 + 1 × 14N-39) • Amiot 354 (1 × 14N-48 + 1 × 14N-49) • Bloch MB.131 (1 × 14N-10 + 1 × 14N-11) • Bloch MB.135 (2 × 14M-4 + 2 × 14M-5) • Bloch MB.150 (14N-7) • Bloch MB.151 (14N-35) • Bloch MB.152 (14N-25) • Bloch MB.155 (14N-49) • Bloch MB.161 (2 × 14N-38 + 2 × 14N-39) • Bloch MB.170 (2 × 14N-6) • Bloch MB.174 (2 × 14N-49) • Bloch MB.175 (2 × 14N-48) • Bloch MB.210 (1 × 14N-10 + 1 × 14N-11) • Bloch MB.220 (1 × 14N-16 + 1 × 14N-17) • Bloch MB.300 Pacifique (2 × 14N-16 + 1 × 14N-17) • Dewoitine D.342 (2 × 14N-16 + 1 × 14N-17) • Farman F.222.2 (4 × 14N-11) • Farman F.224 (4 × 14N-1) • Latécoère 611 (prototype) (2 × 14N-30 +2 × 14N-31 ) • Lioré et Olivier LeO 451 (14N-48 + 14N-49 or 14N-38 + 14N-39 or 14N-46 + 14N-47) • Sud-Est SE.161 Languedoc (2 × 14N-44 + 2 × 14N-45 ) • Messerschmitt Me 323 (various) • Koolhoven F.K.58A (14N-16) • PZL P.24F and G (14N-7) • PZL P.24H (14N-21) • PZL.43 (14N-1) • SNCAO CAO.700 (4 × 14N-49) • SNCASE SE.100 (1 × 14N-20 + 1 × 14N-21)

Specifications (14N-48)

Citations