A Glider Training Squadron was formed, and the first test-flights were conducted using Swallow light aircraft which had their propellers removed to simulate the flight characteristics of a glider; they were towed by the Whitleys using tow-ropes of varying number and length for experimentation purposes. Appeals were made throughout the United Kingdom for civilian gliders to be donated to the squadron, and the first four arrived in August 1941; three of them had been manufactured in pre-war Germany. Soon several more were donated, and these were put to use training instructors, glider pilots and newly formed ground crews. Accidents were quite frequent in these early months, primarily due to the hemp tow-ropes breaking during flight; these problems were only solved with the introduction of nylon tow-ropes imported from the USA. The first demonstration of the squadron's abilities took place on 26 September, when Prince George, Duke of Kent witnessed a demonstration of the fledgling airborne establishment's capabilities: four parachute-drops were conducted, and then two gliders were towed by civilian aircraft. This was followed on 26 October by a night exercise being conducted by the squadron, with two Avro 504s towing four gliders, and on 13 December five gliders were towed to Tatton Park, where they landed alongside sixteen parachutists dropped from two Whitley bombers.