We are in the process of finalizing many of our products and as we do we will be from time to time updating our Website with products we have flight tested and feel are air worthy. Aerolite has decided to carry a full supply of replacement parts for the Corvair for both our Complete Rear System as well as the Fly Corvair system. Aerolite made this decision after many builders contacted us wanting to buy parts for both setups. Aerolite is of the opinion that there is a need for replacement parts in cases of emergency where time is of the essence. We also feel that Fly Corvair advanced the front starter system and thus if you have time to wait for the parts you order than we encourage you to support them and their products.