Thorpe Camp was disbanded on 1 April 1920 after being renumbered, becoming No. 60 Squadron. The squadron was reformed on 16 September 1935 at RAF Catfoss, and later became one of the Pathfinder squadrons in April 1943. Commonly known as the Dambusters, No. 617 Squadron was the squadron that took part in Operation Chastise in May 1943, destroying Nazi factories, mines, and hydro-electric power stations. 617 Squadron was based at RAF Scampton, but often made use of RAF Woodhall Spa during exercises and missions. No. 619 Squadron was a Heavy bomber squadron, initially formed at RAF Woodhall Spa on the 18th April
No. 618 Squadron RAF changed to converted Mosquito Mk.IVs. The "Highball" device was intended to bounce across the sea until it hit an enemy ship, sank and exploded. Unlike the cylindrical Upkeep weapon used by No. 617 Squadron RAF in Operation Chastise, the "Highball" was more spherical. The Mosquito selected for the conversion work to carry "Highball" was the Mk.IV series II: the work entailed removing the bomb bay doors and equipping the aircraft with specialised carriers enabling them to carry two "Highballs", each weighing 1,280 lb (580 kg), in tandem. The bombs were designed to skip across water and to provide weapon stability