Talk:Pratt & Whitney X-1800

Licensed from Napier
The X1800 was built under license from Napier, UK. The Napier H24 was run in Jan '38, but took another 5 years to become mature. Napier transferred production to their Canadian plant. The engine had a trait of catching fire during startup, and the full-power vibration caused many Typhoons to loose their tail sections. — Preceding unsigned comment added by 220.244.247.185 (talk) 06:55, 4 November 2012 (UTC)