Eduardo Richard Finch reports how several builders have used the common 9 inch Ford station wagon or truck axle with success. It is bi-metal so it will flex with loads instead of breaking, is rated for far more than the prop stress, and has its own bearing assembly that is bolted on to the outer plate of the PSRU. Have a machine shop spline the axle to match the top gear, and taper the end to go in the seat of the support bearing on the rear of the shaft, again Finch mentions use of the larger inner bearing of the front spindle assembly from the same vehicle in a custom housing made to allow the bearing race to be tapped into it, and then the bearing installed from the inside of the 2 plates, with a solid backing plate, and an axle seal on the inside that the axle passes through, and seats in the bearing. Pictures and more details are available in the book by Richard Finch, Converting Auto Engines for Experimental Aircraft AS&S, Wicks, and Sportys all carry his book.
crain...@cfl.rr.com http://kr-builder.org/Colin/index.html KR2(td) N96TA Sanford, FL Apex Lending, Inc. 407-323-6960 (p) 407-557-3260 (f) crai...@apexlending.com
