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Some images of Consolidated Model 33/B-32 derivatives courtesy of Lark. The original images are via the San Diego Air and Space Museum but were published in an Air Classics article by Robert Bradley entitled 'Determining the Dominator'. I assume that this Air Classics article was a prelude to Robert E. Bradley's book, 'Convair Advanced Designs: Secret Projects from San Diego, 1923-1962' (Specialty Press, 2010). http://www.specialtypress.com/convair-advanced-designs-secret-projects-from-san-diego-1923-1962.html
Consolidated Model 33/Model 34/B-32 Development Stages
Illustrations attached below are:
LB-25 concept (06 May 1940) - Possible 'going-in' configuration for the R-40B competition. Retractable remotely-controlled dorsal and ventral gun turrets (4 x .50-cal), manned tail turret (4 x .50-cal), twin-gun barbettes in inboard nacelle tails (2 x .50-cal, 1 x 20mm each), remotely-controlled forward-firing guns in the leading edges (outboard of engines, 1 x .50-cal each).
LB-25 concept (29 Feb 1940) - Predating US Army Air Corps requirement R-40B (issued 08 April 1940) and Specification XC-218. The nose shape is similar to the Model 35 (which led to the B-36). An LB-25 wind tunnel model was completed in Oct 1939.
Also see LB-25 wind tunnel model:
http://glostransporthistory.visit-gloucestershire.co.uk/images/Consolidated%20XB-32%20TOP.jpg
http://glostransporthistory.visit-gloucestershire.co.uk/images/Consolidated%20XB-32%20AFT.jpg
Model 33 - Dec 1940 configuration derived from LB-25 study. Circular fuselage section, retractable gun turrets, frameless glazings on clear nose cap and canopy.
Model 33 defensive armament layout (17 June 1942). In March 1943, a 6-turreted XB-32 escort variant similar in concept to the XB-41 was also proposed.
Consolidated Model 33/Model 34/B-32 Development Stages
Illustrations attached below are:
LB-25 concept (06 May 1940) - Possible 'going-in' configuration for the R-40B competition. Retractable remotely-controlled dorsal and ventral gun turrets (4 x .50-cal), manned tail turret (4 x .50-cal), twin-gun barbettes in inboard nacelle tails (2 x .50-cal, 1 x 20mm each), remotely-controlled forward-firing guns in the leading edges (outboard of engines, 1 x .50-cal each).
LB-25 concept (29 Feb 1940) - Predating US Army Air Corps requirement R-40B (issued 08 April 1940) and Specification XC-218. The nose shape is similar to the Model 35 (which led to the B-36). An LB-25 wind tunnel model was completed in Oct 1939.
Also see LB-25 wind tunnel model:
http://glostransporthistory.visit-gloucestershire.co.uk/images/Consolidated%20XB-32%20TOP.jpg
http://glostransporthistory.visit-gloucestershire.co.uk/images/Consolidated%20XB-32%20AFT.jpg
Model 33 - Dec 1940 configuration derived from LB-25 study. Circular fuselage section, retractable gun turrets, frameless glazings on clear nose cap and canopy.
Model 33 defensive armament layout (17 June 1942). In March 1943, a 6-turreted XB-32 escort variant similar in concept to the XB-41 was also proposed.