Handley-Page O/400 Gallery 13/01/202522/08/2025Terry Back to Handley-Page O/400 Undergoing mail carrier trials 1918 – 360 hp Rolls Royce Eagle VIII Imperial Airways O/400 Squadron A of Royal Naval Air Service at Manston Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related