Inertial Navigation Systems’ tendency to drift can be partially addressed by updating the “Fix”. Several techniques can be used; this video shows how to perform an INS Fix Update via TACAN, GCI or Bullseye.
Bullseye and Nav references increase situational awareness and ease navigation. The F-4E-45MC’s AN/ASN-63 INS does not provide ad hoc tools to take advantage of them. However, the crew can easily overcome limitations with the here-discussed tools and some practice.
“Leapfrogging” is a handy technique for INS navigation on the F-4E-45MC Phantom II. Its AN/ASN-63 Inertial Navigation System is, in fact, quite basic and allows for the storage of only a single reference point.
This is the second part of the TWR, Fuel & Performance study about F-4E-45MC, MiG-21bis and Mirage F1CE. This time, the three fighter jets are directly compared.
The second round of thrust-to-weight ratio, fuel and performance analysis travels back to the mid-to-early 70s, discussing the American F-4E-45MC, the Soviet MiG-21bis and the French Mirage F1CE.
Due to the length, I split this part in two. The first introduces the three aircraft.
This article discusses another 1970s intercept technique. It is not as simple as the Sync-Z-Turn discussed previously, but it is still quite intuitive and easy to remember. The fulcrum of the manoeuvre lies in the name: “40° Cold of CATA at 25nm”. Yes, it’s a long name.
