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      BFM Maneuvering Tactics


      Definitions & Geometry

           Lets get one thing out of the way first. All headings to or from the bogey are in relation to either degrees or a clock position. Let me explain the clock position thing here. When you are sitting in your cockpit, the longitudinal line (an imaginary line) extending through the nose and tail represent the 12:00 o'clock (nose of the plane) and 6:00 o'clock (tail of the aircraft) position of a clock. Likewise, the lateral line extending from wingtip to wingtip represents 9:00 o'clock (left wingtip) and 3:00 o'clock (right wingtip). So if you see "on your six", it means on your tail!

          The first buzzword is Positional Geometry (PG). PG is a way of describing where your jet is in relation to the bogey's jet. There are three terms that make up PG.

           The next buzzword is Attack Geometry (AG). These are also in your training videos. AG defines where your jets nose is pointing in relation to the bogey's jet as you converge on the bandit. There are also three terms in AG.

          Last but not least is the Weapons Envelope (WE).  The WE determines the area around a bandit where your weapons will be effective.  There are three envelopes, but only two are needed for this discussion.  Both envelopes use two separate values called Rmax and Rmin. Rmax is the maximum range that a weapon can be deployed and still maintain the kill.  The farther the range, the smaller the probability of kill or PK (remember this).  Rmin is the minimum range that a weapon can be deployed to get it off the rail. Rmin usually only deals with missile shots as gun shots do not have an Rmin. But remember, you can eat pieces of the enemy's jet for breakfast if you are too close.  Rmin/Rmax for missiles will be discussed in the A2A weapons section of the trainer.  Here, Rmax for the gun is approximately 4500' from the front quarter and 2500' in the rear quarter.  Bullets also have to fight the effects of speed and gravity.

       

      Miscellaneous terms that deal with other aspects of air combat:

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