Lockheed EP-3 - Variants

Variants

• EP-3A: Seven modified for electronic reconnaissance testing.
• EP-3B: Least known of all P-3 family. 3 P-3A(149669, 149673, 149678) were obtained by CIA from US Navy under Project STSPIN in May 1963, as the replacement aircraft for CIA's own covert operation fleet of RB-69A/P2V-7U. Converted by Aerosystems Division of LTV at Greenville, Texas, the 3 P-3A were simply known as "black" P-3A under Project Axial. Officially transferred from US Navy to CIA on June/July 1964, LTV Aerosystems converted the 3 aircraft to be both ELINT and COMINT platform. First of 3 "black" P-3A arrived in Taiwan and officially transferred to ROCAF's top secret "Black Bat" Squadron on June 22, 1966. Armed with 4 Sidewinder short range AAM missiles for self-defense, the 3 "black" P-3A flew peripheral missions along the China coast to collect SIGINT and air samples. When the project was terminated in January 1967, all 3 "black" P-3A were flown to NAS Alameda, CA, for long term storage. 2 of the 3 aircraft(149669 and 149678) were converted into the only 2 EP-3B examples in existence in the world by Lockheed at Burbank in September 1967, while the third aircraft(149673) were converted by Lockheed in 1969-1970 to serve as a development aircraft for various electronic programs. The 2 EP-3B were known as "Bat Rack", owing to their short period of service with Taiwan's "Black Bat" Squadron, were issued to US Navy's VQ-1 Squadron in 1969 and deployed to Da Nang, Vietnam. Later, the 2 EP-3B were converted to EP-3E ARIES, along with 7 EP-3A. The 2 EP-3E retired in 1980s, when replaced by 12 EP-3E ARIES II.
• EP-3: ELINT aircraft for the Japanese Maritime Self-Defense Force.
• EP-3E ARIES: 10 P-3As and 2 EP-3Bs converted into ELINT aircraft.
• EP-3E ARIES II: 12 P-3Cs converted into ELINT aircraft.
• EP-3J: Two modified from P-3As for FEWSG use as a simulated adversary EW platform in exercises; later transferred to the former Tactical Electronic Warfare Squadron 33 (VAQ-33), then transferred to the former Fleet Air Reconnaissance Squadron 11 (VQ-11).