They’re supposed to be, but I wouldn’t put it past the Israelis to modify it so heavily it needs a weapons officer.
F-15s and F-16s make up the backbone of Israels potent fighter force.
The IDFs main fighter is the F-16 Fighting Falcon, including the aging F-16 A/B Netz (Falcon)[now for sale on the International market]
the F-16C Barak (Lightning) and
the 2-seat F-16D Brakeets (Thunderbolt), and
the newest of the lot - the heavily customized two-seat F-16I Block 52+ Soufa (Storm) [likely the type just lost ].
The Israelis fly the largest contingent of F-16s outside the United States, alongside longer range, higher performance F-15s. F-15A-D Baz (Eagle) models have greatly distinguished themselves external link in IDF service, and the customized two-seat F-15I Raahm (Thunder) Strike Eagle external link is optimized for advanced ground attack and long range interception.
All of these aircraft are heavily modified from the US versions, with Israeli avionics, self-protection systems, weapons, and sometimes radars as well.
The US Version of the F-15E Strike Eagle was copied from the IDF version.
Just like the US was always behind on tank Technology and copied much of what the Soviets put into service, when it comes to multi-role fighters, the IDF also lead the way.
Something about being small and always at war.....