When did the Mk IIa series 1 Hurricanes first enter service ?
Mk I = introduced in 1918 and declared obsolete in 1919 Mk II = the first model introduced in 1938 with a large baseplate Mk II * = the 1938 version intended for use with the Universal ( Bren Gun ) Carrier Mk II ** = a second version for use with the Universal Carrier Mk II *** = version for use by infantry at platoon level and fitted with a large baseplate Mk III = version used as a smoke launcher for tanks Mk IV = limited production run and did not enter service Mk V = not manufactured Mk VI = not manufactured Mk VII = for use on Universal Carriers Mk VII * = for use by airborne forces , having a shorter barrel ( = 36 cm ) and a baseplate replaced with a spade - like plate Mk VII ** = infantry use with long barrel and spade - like baseplate Mk VIIA = Indian Army model Mk VIII = another short - barrelled version for the airborne forces