Shy, that's a keyboard, screen and some wallpaper you owe me!!
Me, a Heron, a very rainy day. Surely, that can't be water in the bottom of my Horizon . . . can it?!?!?
Yes. But, the aircraft had just been washed with something bubbly. Within ten minutes, the foam had reached 15% of the glass. When would it touch the gyro, with all its little buckets spinning so furiously?
Wow! That's pretty.
What did I learn from all this?
The vacuum replacement air came though a filter just at the back of the Horizon. It was bronze and about as much use at keeping out water as Mary O'Riely's breast was in a fight.
I also learned that when the gyro toppled, the foam filled the glass in a nano-second. Oh,a and that I can fly reasonably well on an old turn and slip indicator.