Existing comment:
P-3 Orion:
Originally designed in 1959 as a replacement for the P2V Neptune. More than 30 years later is remains the Navy's sole land-based antisubmarine warfare aircraft. It has gone through one designation change (P3V to P-3) and three major models: P-3A, P-3B, and P-3C. The last Navy P-3 came off the production line at the Lockheed plant in April 1990.
[Note: Unit cost: $36 million in FY87] |