A main stage generator rotor comprising: a winding-pole set comprising a winding and a pole; and a winding retention member; wherein the main stage generator rotor has an axis of rotation, wherein the axis of rotation has a radius, wherein the winding retention member is disposed outboard of the winding-pole set along the axis of rotation, whereby the winding of the winding-pole set is axially confined between the winding retention member and the pole of the winding-pole set, whereby the winding of the winding-pole set is constrained by the winding retention member from radially translating; wherein the winding retention member comprises: an axial containment plate disposed outward of the axis of rotation with respect to the winding of the winding-pole set and constraining the winding from radially translating; a tensioning apparatus whereby the axial containment plate is retained in position relative to the winding-pole set; and a cooling oil routing hole whereby cooling oil may travel radially through the axial containment plate, wherein the cooling oil routing hole is disposed through the axial containment plate, permitting the oil to escape between the pole and the axial containment plate, characterized in that the cooling oil routing hole is axially in line with the winding; and wherein the main stage generator further comprises a winding guide plate attached to the axial containment plate and disposed axially outward of the winding of the winding-pole set and in mechanical contact with the winding, and further disposed axially inward of the axial containment plate, and in mechanical contact with the axial containment plate; wherein the winding guide plate further comprises a winding guide channel corresponding to shape of the winding of the winding-pole set; wherein the winding guide plate further comprises a cooling oil guide channel comprising a trough cut transverse to the winding guide channel and permitting oil to flow through the winding guide channel; and wherein the cooling oil guide channels terminates in an aperture corresponding to the cooling oil routing hole of the axial containment plate. a winding-pole set comprising a winding and a pole; and a winding retention member; wherein the main stage generator rotor has an axis of rotation, wherein the axis of rotation has a radius, wherein the winding retention member is disposed outboard of the winding-pole set along the axis of rotation, whereby the winding of the winding-pole set is axially confined between the winding retention member and the pole of the winding-pole set, whereby the winding of the winding-pole set is constrained by the winding retention member from radially translating; an axial containment plate disposed outward of the axis of rotation with respect to the winding of the winding-pole set and constraining the winding from radially translating; a tensioning apparatus whereby the axial containment plate is retained in position relative to the winding-pole set; and a cooling oil routing hole whereby cooling oil may travel radially through the axial containment plate, wherein the cooling oil routing hole is disposed through the axial containment plate, permitting the oil to escape between the pole and the axial containment plate, characterized in that the cooling oil routing hole is axially in line with the winding; and wherein the main stage generator further comprises a winding guide plate attached to the axial containment plate and disposed axially outward of the winding of the winding-pole set and in mechanical contact with the winding, and further disposed axially inward of the axial containment plate, and in mechanical contact with the axial containment plate; wherein the winding guide plate further comprises a winding guide channel corresponding to shape of the winding of the winding-pole set; wherein the winding guide plate further comprises a cooling oil guide channel comprising a trough cut transverse to the winding guide channel and permitting oil to flow through the winding guide channel; and wherein the cooling oil guide channels terminates in an aperture corresponding to the cooling oil routing hole of the axial containment plate.