I acknowledged in my 1st message that SD does indeed give the RoD at the start of the pseudo ILS phase. However, if you miss it then there is no way of recalling it -- Pity.

I understand your point that this is a VFR application, but the pseudo ILS representation that you offer intimates other options for the VFR flyer and all that a RoD digital display would be doing is to interpret the GS line on this display in another way, so in essence you are already supporting the idea but as a graphical display (GS) only.

OK, I'll just go on doing it as I always have -- It's amazing how adept you can become at using a Pooleys Computer one-handed!

Biggles -- EGKB

SkyDemon does flash up an alert when you intercept the GPS-based glideslope telling you what your rate of descent should be based on your current lateral speed, but I do not want a permanent instrument showing this on display as people may rely on it more than we are comfortable with. SkyDemon is supposed to be for VFR flying.

The one calculation which I constantly find myself doing during the last 6 miles when establish on the ILS is "What should my rate of descent (RoD) be?"

Now I know that the glideslope gives that to me as a visual "..too high, too low, just right...." but somehow I always like to have secondary confirmation of these things especially when all I can see is wall to wall clouds outside the cockpit and I know that the ground is coming up to meet me in the not too distant future!

To have an indication of what the necessary RoD should be in order to land on the numbers and to correlate that to the aircraft's VSI would be a very comforting addition to SD's armory.

At the moment, I'm doing it in my head on the decent at a time when the workload is at its heaviest. Some how I really think that, since SD is doing this calculation constantly in the background; advises me at the start of the virtual ILS approach of the required RoD; a simple display inside the virtual ILS instrument followed by a quick flick of the eyes to the cockpit VSI would do the job in a matter of seconds.

So what do you think for all of us (V)FR fliers?




Biggles -- EGKB