The light-weight F.B.5(X)is for general use and the large F.B.10(P)is used in the hangars and on the flight deck of carriers.
I-(F.B. 5 (X)) enobunzima obulula yeyokusetyenziswa jikelele kunye , ne- F.B. 10 (P) isetyenziswa kumaziko eenqwelo- moya, kunye nakumgangatho, wokubhabha wezithwali.