[1][2] Its fuselage was a ply-covered, oval section semi-monocoque structure with an enclosed, multi-transparency cockpit above the leading edges of the wing roots.

The fuselage tapered smoothly aft to a conventional empennage with a straight-tapered tailplane mounted on top and a curved fin, both ply-covered.

[1][2] After completing its flight trials In the early summer of 1937 two PWS-101s joined a Polish team competing at the annual Rhön glider international contest, held in July on the Wasserkuppe.

The Germans judged the PWS-101 the best foreign aircraft present and one set a new Polish distance record of 351 km (218 mi; 190 nmi) but they only achieved 10th and 20th places.

An outstanding flight between Bezmiechowa to Wilno, piloted by Tadeusz Góra in May 1938, set a new Polish record of 577.8 km (359.0 mi; 312.0 nmi) and was the greatest distance flown by a glider in Europe that year.