In military terminology, a soft-skinned vehicle, also known as a 'B' vehicle, is a vehicle that is not protected by vehicle armour.[1][2] Lexicographer Eric Partridge believed the term soft-skinned vehicle first appeared in military parlance in the early 1940s.[3]
Soft-skinned or 'B' vehicles are often considered wheeled military vehicles such as light utility vehicles and trucks, but they can be any unarmoured wheeled or tracked vehicle that is not primarily designed to be employed for offensive purposes.[1][2][4] They can be purpose-designed models specifically built for military service, militarised versions of commercial vehicle models or standard commercial civilian vehicles pressed into military service.[5] In some cases this class of vehicles may be fitted with vehicle armour for crew defence.[4]
^Partridge, Eric (1984). Beale, Paul (ed.). A Dictionary Unconventional English (8th ed.). London, Melbourne & Henley: Routledge & Kegan Paul. p. 1111. ISBN0710098200.