The McDonnell Douglas, and later Boeing F-15 Eagle initial prototype first flew in 1972; a dozen prototypes were produced. Just shy of 1,200 airframes in several versions were built, with more expected in the next decade.
The air superiority fighter was manufactured in one and two seat versions. The F-15A and -C versions are single pilot fighters. Air National Guard F-15Cs have been seen with additional air to ground capabilities lately. Here’s a gallery of single seat F-15A and F-15C Eagles:
The F-15 B and -D are twin-seat trainers which retain complete fighter capabilities. Here’s a gallery of F-15B and F-15D Eagles:
The F-15E Strike Eagle was conceived as a fighter-bomber version with air to air and air to ground capabilities. Here’s a Strike Eagle gallery:
Foreign operators include Israel (F-15A/B/C/D/I/IA versions), Japan (F-15J/DJ versions), South Korea (F-15K version), Saudi Arabia (F-15C/D/S/SA versions) and Singapore (F-15SG version), and Qatar (F-15QA). Except for the F-15A/B/C/D and J versions, the other versions are all attack variants optimized for both air to air and air to ground missions – similar to the USAF’s F-15E. Here’s a gallery of some of the non-USAF’s Eagles:
Over the service lives of the F-15A through -D fighters, upgrades to radar, instrumentation and armament have been accomplished. Boeing is building the new F-15EX Eagle II for USAF/Air Nation Guard use; a dozen have already been funded and a prototype has flown in early 2021.