The JF-17 Thunder was one of the interesting aircraft to make it to RIAT in 2025. It had been before, but this was the first time I got to see it. The Pakistan Air Force brought a pair of them. I got to have a good look at one of them in the static park and something struck me about it. The engine installation. The plane is fitted with the Klimov RD93 engine which is a derivative of the engine for the MiG-29. The diameter of the nozzle for the engine seems to be very small compared to the rear fuselage size. Afterbody drag is a big deal on fighters and I wonder how bad the penalty is for this configuration. I understand that China is developing an engine to replace the RD93 and maybe the sizing of the fuselage is for this new engine. In the meantime, it does look like someone made do with the engine available.