The Slingsby Prefect Intermediate Sailplane: A Replacement for the Grunau on Up‐to‐Date Lines with High‐performance Characteristics

IN the post‐war programme of Slingsby sail‐planes provision was made for the design of a 45 ft. span intermediate sailplane to be used for advanced training and as a general utility machine by gliding clubs. This machine appeared in the early part of 1949 and was named the Prefect; it has since been adopted by the R.A.F. as a standard training type under the designation of Prefect T.X. Mark I, Light Glider.