The Lockheed Martin F-16V Viper is a family of upgraded single-engine supersonic multirole fighter aircraft developed from the General Dynamics F-16 Fighting Falcon. Improvements over the F-16 include the APG-83 AESA radar, upgraded avionics with a modern mission computer, enhanced cockpit displays, and electronic warfare suites such as the AN/ALQ-254(V)1 Viper Shield. According to the manufacturer, the aircraft delivers fifth-generation fighter radar capabilities by leveraging hardware and software commonality with F-22 and F-35 AESA radars while extending service life and interoperability with stealth platforms. Initially introduced to support export customers like Taiwan and Greece through both new production and retrofit options, the Viper configuration continues to be fielded and modernized by Lockheed Martin and international partners. In United States Air Force inventory, the F-16 C/D Post Block Integration Team (PoBIT) modernization program is equivalent.
Development The F-16V (Block 70/72) began as Lockheed Martin’s comprehensive "Viper" upgrade announced at the Singapore Airshow on February 15, 2012, adding the AN/APG-83 SABR AESA radar, a new mission computer/architecture, and cockpit enhancements. An F-16V achieved its maiden flight with the AN/APG-83 on October 16, 2015, validating the configuration that would underpin both new-build Block 70/72 jets and global retrofit programs.
Operational history In May 2021, the United States Air Force awarded a $14 billion (~$15.9 billion in 2024) contract to Lockheed Martin to build new 128 Block 70/72 F-16V fighter jets on behalf of Bahrain, Slovakia, Bulgaria, Taiwan, Morocco and Jordan through 2026.
Bahrain In September 2017, the U.S. Department of State approved a Foreign Military Sale to Bahrain for 19 new-build F-16V and upgrade its existing 20 F-16C/D Block 40 to F-16V standard for the Royal Bahraini Air Force. In June 2018, Bahrain finalized its order for 16 new-build F-16V. On 8 March 2024, Bahrain received its first batch of F-16 Block 70.
Greece In October 2017, the U.S. approved the sale of 123 upgrade kits to Greece to bring their existing F-16C and D fighters up to the new F-16 Block 72 standard for its Hellenic Air Force. On 28 April 2018, Greece decided to upgrade 84 aircraft. On 12 September 2022, Greece received its first upgraded F-16 Block 72 jets. Hellenic Air Force F-16V jets participated in Ramstein Flag 2025.
South Korea South Korea plans to upgrade 134 of its F-16C/D fleet to F-16V standard by November 2025 for the Republic of Korea Air Force.
Slovakia
In April 2018, the U.S. Department of State approved a Foreign Military Sale to Slovakia for 14 new F-16Vs for its Air Force, pending approval from U.S. Congress. The Defence Ministry of Slovakia announced on 11 July 2018 that it intends to purchase 14 F-16 Block 70 aircraft from Lockheed Martin to replace its aging fleet of Mikoyan MiG-29s. The package, which includes armament and training, is worth €1.58 billion ($1.8 billion), and is Slovakia's largest military purchase in modern history. Defence Minister Peter Gajdoš signed the contract with Lockheed Martin representative Ana Wugofski in a press conference at the capital Bratislava on 12 December 2018, after the government approved the purchase. The first completed jet was unveiled by the manufacturer on 7 September 2023, and first two aircraft were delivered to Slovakia on 22 July 2024.
Bulgaria In December 2018, Bulgaria chose sixteen F-16 C/D Block 70/72 as replacements for MiG-29s for its Bulgarian Air Force. On 10 July 2019, Bulgaria approved the purchase of eight F-16 Block 70/72 for $1.25 billion (~$1.51 billion in 2024). The U.S. Department of State approved the sale of eight F-16 Block 70s to Bulgaria, and the deal was approved by the Bulgarian parliament, and President Rumen Radev. On 4 November 2022, the Bulgarian parliament approved the purchase of 8 more F-16 C/D Block 70/72 fighters along with spares, weapons and other systems for $1.3 billion with delivery in 2027. On 13 April 2025, Bulgaria received its first F-16 C Block 70 jet.
Taiwan
On 27 February 2019, Taiwan requested to buy 66 new F-16 Block 70/72 aircraft for an approximate $13 billion (~$15.7 billion in 2024) as replacement for the Republic Of China Air Force's aging Mirage 2000 and F-5 fighters. On 16 August 2019, the U.S. Department of State submitted the package to Congress, total package worth $8 billion (~$9.65 billion in 2024) for 66 F-16 Block 70 and other spare parts. On 13 December 2019, the US and Taiwan finalized the F-16V order. On 14 August 2020, Taiwan formally signed an agreement to buy 66 F-16V jets built by Lockheed Martin. On 18 November 2021, Taiwan commissioned the first F-16V Viper combat wing (upgraded fleet to Block 72 standard except for internal ECM system due to being based on F-16A/B airframes); these aircraft are referred to as F-16AM/BM locally. On 28 March 2025, Lockheed Martin unveiled the first newly built F-16 Block 70 jet for Taiwan.
Morocco On 25 March 2019, the U.S. Department of Defense announced approvals for two sets of foreign military sales of F-16V hardware to Morocco for its Royal Moroccan Air Force; one for upgrading its existing 23 F-16s to the F-16V configuration, valued at $985.2 million; and the second for a batch of 25 new Block 72 airframes, 29 new engines, a package of precision-guided munitions, and training valued at $3.787 billion.
Royal Jordanian Air Force On 3 March 2020, It was announced that instead of upgrading, Royal Jordanian Air Force is now looking to buy the latest F-16 Block 70/72 model to replace its current fleet of older F-16s. As early as September 2017, the Royal Jordanian Air Force was working with the U.S. Air Force Air Force Life Cycle Management Center (AFLCMC), based at Wright Patterson Air Force Base, Ohio, to begin the Viper Block-70 operational upgrade program. This study is still under way, but it is unclear whether, and when, it will apply where necessary congressional approvals are needed to sell these possibilities to Jordan.
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