Re: Brakeshoes

Hi Taylor:
Iron brake shoes should be cast from a class 40 (40,000 psi) gray iron, in my opinion. They will be significantly "softer" than the steel tire on the locomotive, will wear very well because of the flake graphite in the iron and will absorb shocks sufficiently to keep from coming apart. Almost any iron foundry can pour a good grade of class 40 iron, but a Meehanite foundry generally will give you a superior product. Many iron shoes are cast with a steel "strong back" or steel mesh in the body of the shoe. This is important in high speed service where there are a lot of shocks and heat associated with high speed running. I doubt you will need these complications on the Sumpter Valley. I would just find a foundry that can pour a good, clean iron product.
That is my opinion. Actually, if you call Steve Jackson at the Durango & Silverton he can tell you what they are using because they have them cast all the time. Also, the last I checked they are using Horizon Foundry in the Salt Lake area. I have lost Horizon's information over the years, but they can make good recommendations. If their advice doesn't jibe with mine, use their idea and I think you will be fine.
Bill Petitjean