for a naval fighter to specification N40/46. Not built. Blackburn B-68 (1946) – Design proposal for a naval fighter. Not built. Blackburn B-71 (1947) – Design proposal for a flexible deck landing version of B.67. Not built. Blackburn B-74 (1947) – Design proposal for a naval fighter. Not built. Blackburn B-54 (Y.A.5, Y.A.7, Y.A.8) (1949) – single-piston-engine, two-seat contra-rotating propeller naval anti-submarine aircraft. Blackburn B-82 (1949) – Design proposal for a naval fighter to specification N.14/49. Blackburn B-88 (Y.B.1) (1950) – single-turboprop-engine, two-seat contra-rotating propeller naval anti-submarine aircraft Blackburn B-89 (1951) – Submission for a naval fighter to specification N.114T. Blackburn B-90 (1951) – Design proposal for an experimental swing wing aircraft to ER.110T. Not built. Blackburn B-94 (1951) – Design proposal for a flexible deck landing version of B.90. Not built. Handley Page HP.88 (Blackburn Y.B.2) (1951) – Experimental aircraft for Handley Page using a Supermarine-built fuselage. Blackburn B-95 (1952) – Design proposal for a revised version of B.89. Blackburn B-97 (1952) – Design proposal for a rocket powered fighter to specification F.124T. Not built. Blackburn B-99 (1952) – Development of N.97. Not built. Blackburn Beverley (1950) – B-101. four-engine, high-wing, propellers, transport airplane (designed by General Aircraft) Blackburn B-102 (1952) – Design proposal for a mixed powerplant fighter based on B.89 and B.95. Not built. Blackburn Buccaneer (Y.B.3, B-103) (1958) – twin-engine, two-seat jet naval strike aircraft to Naval Staff Requirement NA.39 Blackburn B-104 (1953) - Design proposal for a two-engine medium-range military transport for the Royal Air Force. Not built. Blackburn B-109 (1958) – Design proposal for a Mach 1.5 strike fighter version of the Buccaneer for the Canadian Air Force. Not built. Blackburn B-112 (1958) – Design proposal for a Mach 1.5 fighter version of the Buccaneer for the Royal Navy. Not built. Blackburn B-117 (1960) – Design proposal for a high attitude fighter version of the Buccaneer. Not built. Blackburn B-120 (1962) – Design proposal for a Mach 1.8 fighter version of the Buccaneer. Not built. The company also produced aircraft from other aircraft companies' specifications, such as the Sopwith Cuckoo (1918) and the Fairey Swordfish (1942), both of which were built at Blackburn's Sherburn-in-Elmet factory. Piston engines Blackburn Cirrus Major (1936) Blackburn Cirrus Minor (1937) Blackburn Cirrus Midget (1937) Blackburn Cirrus Bombardier (c. 1954) Gas turbine engines (with Turbomeca) Blackburn-Turbomeca Artouste (1947) Blackburn-Turbomeca Palas (1950) Blackburn-Turbomeca Palouste (1952) Blackburn-Turbomeca A.129 (later known as the