1. an accurate terrain map
2. an altimeter
3. a variometer
I will post the idea on a PG site and see what happens with it.
Such a simple solution would have saved Willi Muller, who understood stall speeds VERY well.

Willi suffered an initial collapse about three hundred off the deck, got his laundry flying again then suffered a second collapse that took him down. I never saw Willi go for a reserve but he disappeared from my view the last hundred feet.
The instinct of long time pilots to "fly our way out of it" instead of going for the reserve was a factor in the fatality I witnessed last week as well. I had a clear view of that incident all the way to the deck. Kinda hard to erase such images from ones mind.
Wrong forum to post this idea perhaps, my apologies.....RS