The Schneider Grunau Baby (named for the town where Schneider's factory was located - now Jezów Sudecki in Poland) was a single-seat sailplane first built in Germany in 1931, and with some 6,000 examples constructed in some 20 countries, is the most widely-built sailplane to date.
It was relatively easy to build from plans, it flew well, and the aircraft was strong enough to handle mild aerobatics and the occasional hard landing.
When the Baby first appeared, it was accepted wisdom that the pilot should feel as much unimpeded airflow as possible, the better to sense rising and falling currents of air, temperature changes and the like.

This fantastic glider has been made in two versions by Marcel Aerni