Compatibility Test of CBU-55/B Munition on the A-37 Aircraft (SEEK EAGLE).

The CBU-55B munition has been certified on stations L3 and R3 of the A-37 aircraft for carriage and release up to 300 KIAS. This test was conducted to determine if the certification limits could be expanded to include stations L4 and R4, and increase the maximum release speed to 350 KIAS. Satisfactory physical fit was demonstrated in accordance with MIL-STD-1289 with the exception of ground clearance however, this was considered acceptable since the clearance was greater than the already certified drop tanks on stations L2 and R2. Satisfactory carriage was demonstrated up to 415 KIAS and loads from -2.0 to 6.0 G. Certification limits could not be expanded to 350 KIAS however, satisfactory separation was demonstrated to 325 KIAS in level flight on all stations and 300 KIAS in a 30-degree dive on stations L4 and R4.