Abstract: A nose cone assembly (30) for a gas turbine engine (10) comprising a spinner (34) having a generally conical forward portion (33) and a base portion (35). The base portion (35) of the spinner (34) is disposed radially inside an extended profile of the forward portion (33). Upon the base (35) there is a radially outwardly extending flange (41) through which mounting fasteners (40) are arranged to attach the spinner (34) to a fan hub (6) of the gas turbine engine (10). A fairing (36) is arranged to surround and cover the base portion (35) of the spinner (34) when the nose cone assembly (30) is fitted to the fan hub (6). The fairing (36) having a generally circumferentially and axially smooth continuous outer surface, the profile of which continues that of the forward portion 33 of the spinner 34. Fasteners (44) preferably extend from the fairing (36) in a substantially radially inwardly directed direction to attach the fairing (36).