Strategy for R&D: Studies in the Microeconomics of Development

89 TABLE 5 USE OR PLANNED USE OF MAJOR ENGINES IN AIR FORCE AND NAVY AIRCRAFT a Engine Air Force Aircraft Navy Aircraft F-80, T-33, XF-92, YB-61, AJ2, F9F-7, TV-I, J-33 YB-62, F-94 (A, B), TM- T2-V, P4M-I 61 ( tactical missile) X-3, XF-88 F3D, F2H, F6U, F7U J-34 F-84 (B, C, D, E, G, H) J-35 FJ-I B-45, XB-51, XF-9J, B-36, J-47 B-47, F-86 (D, F, K) J-48 F-94C F9F J-57 B-52, YB-60, F-lOO, A3D, F4D, F8U F-I02A, F-I0l (A, B), SNARK, F-105A, F-I07, KC-135A, B-57D, X-16 F-84F, B-57 FIIF, A4D, FJ-3, J-65 FJ-4, F9F YQ-l, YQ-2, T-37 J-69 SNARK, YF-89E, B-66 J-71 F-I01, F-I02B, F-I05, J-75 F-I07 F8U, XP6M B-58, F-I04, F-IOIA (see J-79 note c, Table 4) F5D, FIIF, A3J, F4H T-34 C-133A, YC-97J, YC-12IF R7V-2 XF-84H T-40 R3Y,XFY,A2D YC-130, YC-131C T-56 Note: a Aircraft in which engine was used or was planned to be used. For at least one (and generally more) of the aircraft in the list associated with a given engine, the decision to use the engine was made when the engine was in the final stages of develop­ ment. (In the case of the J -57, J-79, andJ-75 this is true of nearly all the aircraft listed. ) No Jist extends beyond 1956. Summary For an engine developed independently of an airframe the de­ veloper may constrain the performance, weight, and size of an engine at the start.