I did a little Googling and it looks like both names were used.
"Churchstanton Aerodrome, built in 1940, was used by allied fighter aircraft during WW2 and had 3 runways and 2 observation buildings. The site was renamed Culmhead in 1943 because of confusion with another RAF base at Churchfenton, Yorkshire."
"Churchstanton Aerodrome, built in 1940, was used by allied fighter aircraft during WW2 and had 3 runways and 2 observation buildings. The site was renamed Culmhead in 1943 because of confusion with another RAF base at Churchfenton, Yorkshire."
Parabellum (unable to login)
http://worldwar2airfields.fotopic.net/p6715428.html