Percy F. Westerman, Winning His Wings: A Story of the R.A.F
“ The German machine-gunner at the after gun was pumping in lead as fast as he could. Bullets, many of them of the tracer pattern, whizzed and screeched past the little British machine. A tension-wire snapped like a harp-string, one end cutting through Derek's flying-helmet and drawing blood from his forehead. He was dimly conscious of jagged rips in his leather coat, of rents in the planes, and particularly of a bullet cutting a deep groove in the three-ply decking of the fuselage. Then, just at the critical moment, the gun jammed badly. ”
