johnbr
2nd Lieutenant
the Sabre, I think that the criticisms of Napier's management and the commentary on how things changed after EE were brought on to the scene are borne out by the way in which the power output from the engine, the early Typhoons were flying with 2,200hp but by 1945 the Sabre VII was running at 3,055 hp in Fury prototypes and as we see from the E.122 there was a development path to 3,350hp. It is also interesting to note that due to the large base power of the Sabre VII the type would still give 2,000hp at 20,000ft. The E.123 sounds very interesting, I also recall a proposal for a 32 cylinder Sabre.
The E.122 was chosen, in January 1945, as the engine for the production version of the Blackburn Firecrest; however this was abandoned in October 1945 when it was found that the use of the Sabre would require the engine to located behind the pilot in order to offset the engines greater weight: this in turn added greater weight to the whole aircraft so orders for three E.122 Firecrests were cancelled. This left the E.122 without a platform and perhaps explains why it took until 1947 to actually build it.
The E.122 was chosen, in January 1945, as the engine for the production version of the Blackburn Firecrest; however this was abandoned in October 1945 when it was found that the use of the Sabre would require the engine to located behind the pilot in order to offset the engines greater weight: this in turn added greater weight to the whole aircraft so orders for three E.122 Firecrests were cancelled. This left the E.122 without a platform and perhaps explains why it took until 1947 to actually build it.
Last edited: