referring now to fig1 there is shown a munitions shell or round 1 which it is assumed is to be fired from a rifled bore of from 35 to 45 mm in diameter , not shown , although it is within the scope of the invention to have a larger bore used with the alternator 2 , since the larger dimensions can accommodate greater tolerances between the various parts of the alternator assembly according to the invention . as shown , the alternator assembly 2 is confined within the outer circumference of the munitions shell 1 . toward the forward end of the shell is the rotor assembly 3 containing a circular array of permanent magnets 7 and around which is fitted a nylon sleeve 5 which projects just slightly beyond the circumference of the rotor and the shell so that it , the nylon sleeve , is caused to follow the rifling of the bore as the round traverses the bore after being fired . immediately following the rotor assembly , that is , juxtaposed therto , is the stator assembly 4 having a circular array of pole members 8 about which suitable windings 9 are wound . during firing of the round 1 the nylon sleeve 5 following the rifling of the bore of the gun brings the rotor up to speed , thus generating a voltage and hence an electrical current in the windings 9 surrounding the poles of the stator assembly , as is well known , which current is then fed by means of the leads 16 to a tracking device , not shown , contained within the munitions shell , which require electrical energy to operate , especially during the first five second after the round 1 has left the gun barrel . it is also within the scope of the invention to use such electrical energy as generated by the alternator according to the invention for the firing of a suitable fuse device , not shown , contained in the round . in fig2 is shown the various parts of the rotor assembly . a bearing 6 , of graphite or other suitable material , is shown in the form of a bobbin with one endface removed and which is force fitted on an indented circumferential portion of the shell 1 . a non - magnetic housing 11 is cast from a suitable material and has inserted therein a circular array of rare earth permanent magnets 7 . the magnets are retained within the housing 11 by a washer 10 of magnetic material such as cold rolled steel . the washer 10 also provides a flux path between the ends of the magnet 7 adjacent the washer which is held in place by an interference or force fit with the inner rim of the housing 11 . the nylon drive band 5 is bonded onto the outer rim of the cast housing , as shown . the entire rotor assembly is then mounted on the bearing sleeve 6 so that it is flush against the endface thereof , as shown in fig1 . during gun firing , the end of the rotor defined by the magnetic washer 10 rubs against the endface of the bearing 6 , and the center portion of the rotor then rides on the cylindrical section of the bearing 6 . in fig3 the stator assembly 4 is shown cast in a single piece of solid magnetic material , 8 , 14 , 15 such as cold rolled steel or ferrite which is coated with an insulating material , such as a fluidized bed coated epoxy . the stator poles 8 , eighteen in number , that is , a pole positioned at every 20 degrees of rotations on said stator assembly , are wound with two separate three - phase windings 9 . six lead wires 16 are shown for accomodating the two three - phase windings which extend from suitably spaced holes in the endface of the retaining cup 12 . thus , the stator assembly 8 , 14 , 15 and windings 9 thereon are inserted in the retaining cup 12 , the pins 15 on the one end of the stator being riveted to the endface of the cup 12 in the respective recepticles 13 , as shown and potted with a suitable compound . the stator is thus restrained from moving due to the high g forces encountered during firing . both the stator and rotor assembly are juxtaposed as shown in fig1 . a thin disc , not shown , can be provided for separating the two assemblies , that is , a disc of non - magnetic material sandwiched therebetween , such as phospher bronze or other suitable material which is non - magnetic and self lubricating to provide a minimum friction free interface . fig4 shows the arrangement of alternating permanent magnets 7 at the end of the rotor housing adjacent the stator assembly ; thus the north and south poles alternate for the twelve magnets shown . of course , it is within the scope of the invention to provide a lesser number of magnets , positioned for example at 45 degrees or 60 degrees or even 180 degrees of rotation on the rotor assembly rather than at 30 degrees , as shown . also , the magnets are composed of samarium cobalt for generating electrical energy , although other permanent magnetic material may be used , depending on the amount of electrical energy desired . fig5 shows the angular relationship between the stator poles 8 and the alternating magnetic rotor poles 7 for generating a magnetic field . for example , one stator pole and one rotor pole are aligned coaxially at every 60 degrees of rotation , and therebetween each 60 degrees of rotation two stator poles are flux - linked with one rotor pole . of course , with a lesser number of rotor poles , for example , one at every 90 degrees of rotation , a corresponding lesser number of stator poles could be employed , although the coil windings 9 in such cases would be accordingly increased . the arrangement as shown , however , has proven to be efficient as well as structurally sound for generating a maximum electrical energy output . of particular importance is the strong construction of the stator assembly in which the coil windings are held rigidly in place by the eighteen - pole stator configuration in order to better withstand the severe gravitational , rotational and acceleration forces during firing . the foregoing relates to a preferred exemplary embodiment of the invention , it being understood that other variants and embodiments thereof are possible within the spirit and scope of the invention , the latter being defined by the appended claims .