Henryk Birecki wrote:
Thanks Eric,

The way I read your post is that you are using MC setting as a safety
margin thing to avoid false hopes.

Yes, the flight computer MC setting is based on safety, usually with a
MC=4 setting to give me a conservative glide to airports and landing
areas. The MC setting on my 302 vario set to the speed-to-fly I am
using; typically, that's 1 or 2 knots, except in very good conditions.

So, two MC settings, two different purposes: safety and speed.

GPS_LOG uses pattern altitude to
accomplish that.

I also use an "arrival altitude" of 1000'. My experience is a 1000'
arrival altitude and an MC=0 glide is very risky business.

On the other hand it just says that different people
have different preferences. Since philosophy behind GPS_LOG is to
allow users to configure it as much as possible to their preferences
rather than me telling them what they should use, I will add a YABO
(Yet Another Bloody Option) in next release of the program.

For people like me, using the same MC setting the flight computer is
using would be ideal. It would be interesting to hear how other pilots
use the MC settings in their flight computer and vario, and now a third
choice: the glide footprint setting.

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly
* "Transponders in Sailplanes" http://tinyurl.com/y739x4
* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org