From Wally Khan's book 'A glider pilot bold...':
(In the Horten glider), the pilot lies on his stomach, his chin resting on a leather pad and his feet on pedals behind him.
Jock Forbes, the Chief Instructor of Saltzgitter flew it with hilarious results. Dr Horten, ever mindful of the pilot 'comfort' requirement had provided a pee-tube built into the fuselage design. However it was essential that the pilot before being strapped down took advantage of the fitting and offered up his vital part in the obvious manner. This Jock did more as a giggle as he was planning to stay up very long. However on take-off a small leather cover on the outside end of the pipe fell off and a substantial suction was created due to the venturi effect. On landing Jock's comment was "Apart of the extreme discomfort I do not know whether to be pleased or sorry!"
