NOVELTY - The assembly (44) has a spinner body (46) extending axially between an upstream portion (50) and a cylindrical base portion (54). A flange (58) is positioned radially inward of an outer surface (48) and axially adjacent to the base portion of the spinner body. A set of mounting apertures (60, 60a) is defined in the flange for removably connecting the spinner body to a fan (14) of a gas turbine engine (10). An aperture (64) is defined in the spinner body, through which all of the mounting apertures are accessed, for attaching or removing the assembly to and from the fan.    USE - Nose cone assembly for a gas turbine engine (claimed).    ADVANTAGE - The nose cone assembly can be mounted to the turbine engine through mounting apertures that are accessible through a forward end of the spinner body, thus providing the spinner body with a continuous outer surface, providing stable air flow into the turbine engine, and improving aerodynamic efficiency of the turbine. The outer surfaces of the spinner body and the disk of the fan are free from discontinuities associated with mounting hardware between the forward end of the spinner body and an aft end of the disk. The nose cone assembly avoids the need for separate access holes around the periphery of the spinner body, thus eliminating internal and external features at which stress concentrations can develop, and hence providing thinner, lighter and smooth spinner body. The nose cone assembly can reduce the likelihood of foreign object damage by reducing the possible sources of foreign objects. The nose cone assembly and the fan can be connected to one another through structures that are arranged radially inward of the outer surfaces of the spinner body and a hub, thus preventing the structures from entering a fluid flow path across the blades of the fan in the event of destructive separation from the nose cone assembly or the fan.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for assembling a nose cone assembly to a turbine engine.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a nose cone assembly.    Gas turbine engine (10)    Fan (14)    Nose cone assembly (44)    Spinner body (46)    Spinner body's outer surface (48)    Upstream portion (50)    Cylindrical base portion (54)    Flange (58)    Mounting apertures (60, 60a)    Aperture (64)