Engine Failure Procedures Track or Heading?
Using the BOEING OPT, what does it mean when the engine failure procedure calls for maintaining a certain number of degrees after departure? Does that number refer to TRACK or HDG?
Here's a specific example:
The engine failure procedure for the departure on runway 07R in HKG is depicted as follows: "At D3,0 SMT LEFT turn to 065. Intercept OUBD R-105 LKC. At D9,5 LKC RIGHT turn to 185."
Are the numbers 065 and 185 HEADINGS or TRACKS? I remember that the procedure design is including a certain amount of omnidirectional wind (30 knots if I am not mistaken), so a certain amount of drift is factored into the design. Common sense would certainly dictate that this is flown as a TRACK to be more accurate, but is there a binding LEGAL definition somewhere?
Much obliged