Vickers FB24 prototype
The Vickers FB24 as first flown with Hispano-Suiza engine and long dorsal fin.
The Vickers FB24, was similar in concept to the Bristol F2b Fighter. It was originally designed by Vickers Aviation Department with a 150 hp Hart radial engine, but the first example to fly (designated Vickers FB24A) was powered by a 150 hp Hispano Suiza engine (later replaced by a 200 hp Hispano-Suiza). The Vickers FB24B was similarly powered by the 200 hp Hispano-Suiza.
The Vickers FB24 was a two-bay biplane of unequal span, with the pilot sat directly below the upper wing. Clear panels provided a limited upwards view although the position of the wing so close to the fuselage must have made entry to the cockpit rather difficult. The rear cockpit was provided with a Scarff-mounted Lewis gun and there was also a single fixed forward-firing Vickers gun. The proximity of the wing trailing edge to the rear cockpit restricted the field of fire of the Lewis gun.
Hispano-Suiza engines were required for SE5 production and the Vickers FB24B proved to have only modest performance with this engine. Consequently, the next development, the Vickers FB24C was powered by a 275 hp Lorraine-Dietrich 8Bd engine, fitted in France by SA Darraq.
Vickers FB24C stbd side view
The Vickers FB24C with 275 hp Lorraine-Dietrich engine and reduced dorsal fin.
The type was still considered to have unsatisfactory locations for the crew and two further variants were built as the FB24E and FB24G. These types had the upper-wing lowered and attached directly to the top longerons of the fuselage, with the lower-wing position dropped to pass below the fuselage, like the Bristol F2b.
Vickers FB24E rear view
The Vickers FB24E showing the revised wing layout adopted to improve the field of view from the cockpits.
The Vickers FB24E used the 200 hp Hispano-Suiza engine but the FB24G had the significantly more powerful 375 hp Lorraine-Dietrich 13 engine.
No British production orders were ever placed for the Vickers FB24 but the FB24G, which did not fly until 26th May 1919. It was built under-licence by Darraq in France although it is not clear how many were completed (possibly only a single example).

Variants & Numbers

Vickers FB24A
Prototype initially with 150 hp Hispano-Suiza
Vickers FB24B
One aircraft, 200 hp Hispano-Suiza
Vickers FB24C
One aircraft, 275 hp Lorraine-Dietrich
Vickers FB24D
Vickers FB24A re-engined with 200 hp Hispano-Suiza
Vickers FB24E
One aircraft, 200 hp Hispano-Suiza, revised wing configuration
Vickers FB24G
At least one aircraft built in France by SA Darraq. 375 hp Lorraine Dietrich. Wing configuration as Vickers FB24E,



Types as noted in brackets
(Vickers Vickers FB24B, FB24D, FB24E) one 200 hp Hispano-Suiza engine; (FB24C) one 275 hp Lorraine-Dietrich 8Bd; (FB24G) one 375 hp Lorraine-Dietrich 13
(Vickers FB24C) 37 ft 6 in; (Vickers FB24E) 35 ft 6 in
Maximum Weight
(Vickers FB24C) 2,650 lb; (Vickers FB24E) 2610 lb; (Vickers FB24G) 3,680 lb
Single pilot; one fixed forward-firing Vickers gun, one Scarff-mounted Lewis gun in rear cockpit
Maximum Speed
(Vickers FB24C) 133 mph at sea level; (Vickers FB24E) 122 mph at 5,000 ft; (Vickers FB24G) 140 mph at sea level
3 hours



Other information

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