other > turbine engine >

The shaft is actually the first part I made. It's aluminum with steel ends threaded into it. The turbine disk started as a flat sheet of Cr-Ni stainless steel. Slots were cut around the edge to form the blades, and then each blade was twisted and an airfoil shape was ground into each blade. One at a time, by hand. The other parts shown are the exhaust nozzle and the compressor inlet.