lots of useful information snipped

Thanks!

- on glider fields the runways can be narrow with very rough stuff on
either side. A 2000 ft x 20 ft sealed run seems pretty normal.
I sweated it before my first landing because I'd never tried to land
on anything so narrow before, but it wasn't a problem.

This is going to be a new experience for me - I have never landed on a
_runway_ before :-)

Bartek