Re: C-21 tire ordering

Thanks, Dave, this seems to clear things up.

Okay, let me see if I’m reading this right. New tires for the C-21s would be ordered as 4 flanged at 3 ½” thick by 5” wide and 4 plain at 3 ½” thick by 6” wide, all 8 at 38 7/8” diameter. Apparently at some point it was determined the optimal diameter of C-21 drivers should be 7/8” larger than spec’d by Baldwin. At first I thought it would be a pretty tight fit between drivers 1-2 and 3-4 but there’s a gap a little over 1 ½”. I’d imagine the tires would be turned down a smidge after being fitted to the driver centers, just to true ‘em up?

I suppose there’s a simple explanation, But why would the C-25 – a slightly larger but very similar engine - retain the 38” drivers.

Anyway, much appreciated,
Mike