Section 60 provides for a proper register to be kept of all diversions, so that track can be kept.

A multiplexer can then be used to select the proper register or Flip Flop to read the operand from.

Then, the cosine and sine of the heading (that is currently stored in the heading register) are added to the proper register that stores the and velocity components.

In fact, one of the reasons I was chosen to do this dubbing was that I was able to imitate her voice had she been able to sing in the proper register."