can anyone help identify this mystery object?
I found three of them at an ex-wwII airfield in the Northern Territory of Australia.
They may have been used to tie down aircraft, because they are solid steel and very heavy, but I don't think this is their original use.
As B-24 Liberator Bombers were based there during the war, I suspect they are an impellor from the supercharger system of that A/C.
They have slightly curved vanes in the mid-section and a keyway in the central shaft.
