Hmm tried visiting my site?

The original Kh-101 design used a propfan engine for maximum fuel efficiency. However, it is believed that a turbofan was substituted due to the unavailability of the original engine (probably a Ukrainian design).

I am saying that you can’t compare MTBF of a new system with that of an established one. In the early days Su-27 radar MTBF was 5 hours, but later on this was increased to 200 hours.

Also this 1979 Grumman study was widely known, and might have also influenced the “F-19”.

12,500kg is correct for the basic AL-31F.

With 4 Sparrow and 4 Sidewinder missiles the F-15A is limited to Mach 1.78. In a full burner intercept, on internal fuel only, an F-15A can make it 70nm before having to return.

The drag of the conical camber wing makes the F-15s high speed performance less than stellar.

F-15 was designed for 7.33Gs but I thought the G limit was increased later on.

Tikhomirov NIIP is one company that makes radars, Phazotron NIIR is another, though Yefim Gordon seemed to forget this when writing his Su-27 book 😉 NIIP were responsible for the MiG-31’s Zaslon radar and the Su-27’s N001, though the N001 as designed was seriously flawed and had to be rescued by using major components of Phazotron’s N019. Current NIIP products include advanced N001 derivatives, the N011M Bars, the related Irbis, and the radar for the PAK-FA.

Phazotron designed the Sapfir-23/25 series for the MiG-23 and MiG-25, and the Mig-29’s N019 radar. Their current projects are Zhuk (N010) and Kopyo and a whole host of derived radars.

N010 and N011M have official designations inherited from the Soviet Union days. More recent radars have not entered service in the Russian Air Force so have no official names- the companies that make them decide what to call them. In Phazotron’s case they often seem to change designations just when you understand their product lineup…