Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. No 620 Squadron was a squadron of the Royal Air Force during World War II. During its existence it served as Bomber, Airborne forces and transport squadron.No. 620 Squadron was formed at Chedburgh on 17 June 1943 as a heavy bomber squadron equipped with the Short Stirling. It was a part of No.3 Group of RAF Bomber Command and carried out night bombing missions until November 1943 when it moved to Leicester in preparation for airborne forces operations