Specifications
| A/B MODEL | C MODEL | EP-3 | |
| Type | ten-crew anti-sub warfare/maritime patrol | ten-crew anti-sub warfare/maritime patrol | ten-crew Electronic Intelligence |
| Contractor | Lockheed | Lockheed | Lockheed |
| Country of Origin | USA | USA | USA |
| Powerplant | four Allison T56-A-10W turboprops | four Allison T56-A-14 turboprops | four Allison T56-A-15 turboprops |
| Horsepower | 4,500-hp each engine | 4,910-hp each engine | 4,910-hp each engine |
| Length | 116ft 10in | 116ft 10in | 116ft 10in |
| Height | 33ft 8.5in | 33ft 8.5in | 33ft 8.5in |
| Wingspan | 99ft 8in | 99ft 8in | 99ft 8in |
| Wing Area | 1,300 Sq. ft | 1,300 Sq. ft | 1,300 Sq. ft |
| Max Speed | 437mph @ 15,000ft | 473mph @ 15,000ft | 437mph @ 15,000ft |
| Climb Rate | 2,175ft/minute | 1,950ft/minute | 2,175ft/minute |
| Service Ceiling | 28,300ft | 28,300ft | 28,000ft |
| Radius | 2,532 miles max | 1,550 miles on 3-hour patrol | 2,532 miles max |
| Empty Weight | 60,000lbs | 61,490lbs | unknown |
| Max Take-Off Weight | 127,500lbs | 142,000lbs | 142,000lbs |
| Armament | 7,250lbs of disposable stores internally & 16,000lbs externally | 20,000lbs of disposable stores | NONE |