Duplicating the 1/32 release schedule, the first release by HKM in 1/48 is the Lancaster B Mk.I. These original Lancasters were produced with Rolls-Royce Merlin XX engines and SU carburettors. Minor details were changed throughout the production series – for example the pitot head design was changed from being on a long mast at the front of the nose to a short fairing mounted on the side of the fuselage under the cockpit. Later production Lancasters had Merlin 22 and 24 engines. No designation change was made to denote these alterations. If you chose to leave the engine cowlings on you could also build a B.III from this kit as it was indistinguishable externally from the B.I, being fitted with Packard-built Merlin engines. The Packard Merlins used Bendix–Stromberg pressure-injection carburettors, requiring the addition of slow-running cut-off switches in the cockpit.