Lockheed Martin Offers India Enhanced F-16 Block 70 Multirole Combat Aircraft Dubbed “F-21” – The Aviationist

https://theaviationist.com/2019/02/20/lockheed-martin-offers-india-enhanced-f-16-block-70-multirole-combat-aircraft-dubbed-f-21/

https://www.lockheedmartin.com/en-us/products/f-21.html