BOAC:
Good stuff - and sensible. I've yet to see that!.Is it incorporated anywhere?
It has been implemented in high-end business aircraft with Honeywell avionics for several years now. Two of which I am aware are the Falcon 900EX and Gulfstream G550. I presume it is also implemented in late generation 737s and I would believe the 777 as well.
I know that Garmin has it in their TSO-C145/146 panel mount navigators as well as the G-1000. Below are two screen captures from the Cessna Mustang G-1000 trainer.
Parameters: easterly wind aloft at 85 knots. IAS = 230 knots at 10,300 feet, msl.
The aircraft is setting up for an RNAV IAP to Butte, Montana. In the upper screen shot the course-reversal holding pattern is at the top of the screen and shows as it does on the approach chart. As the aircraft crosses the CPN feeder fix, the holding fix becomes the active waypoint, at which point wind and ground speed are integrated into the holding pattern, as shown in the lower screen shot:
