Sgt Miroslav J Mansfeld began operations in Britain with No 111 Squadron RAF at RAF Dyce on 6 October 1940. He shared a He 111 destroyed off Aberdeen, accompanied by F/O Peter J Simpson and Sgt Otmar Kučera on 13 November.
Sgt Alois Dvořák was processed into the RAFVR in August 1940 at the Czechoslovak Depot at RAF Cosford from where he went to No 6 OTU at RAF Sutton Bridge on 28 September to convert to the Hurricane Mk I. He then joined No 310 Squadron RAF at RAF Duxford on 15 October.
Sgt Miroslav Jiroudek was processed into the RAFVR and posted from the Czech depot at RAF Cosford to No 310 Squadron RAF at RAF Duxford on 6 August 1940. He claimed a Ju 88 shared destroyed in Hurricane Mk I NN-E over London on 18 September. In combat over Faversham on 5 November, Hurricane Mk I NN-B was hit by anti-aircraft fire, forcing Jiroudek to bail out, with the aircraft crashing at Graveney.
P/O Adolf "Ada" Vrána was processed into the RAF and joined No 312 Squadron RAF at its formation at RAF Duxford on 29 August 1940, before moving to RAF Speke in September as part of Liverpool's defences.
With 1 and 4 shared destroyed to his credit while assigned to GC III/3 in France in May 1940, Sgt Václav Šlouf was processed through the Czech depot at RAF Cosford, before being posted to No 312 Squadron RAF at RAF Duxford on 5 September.
P/O Miroslav Kredba joined No 310 Squadron RAF at RAF Duxford, following its formation on 10 July 1940. The Czech was shot up in Hurricane Mk I NN-Y by enemy fighters over the Thames Estuary on 31 August, bailing out, unhurt.