Intereting; Your drawing shows a wheel of code 170 were as the high
rail standard for "S" is code 172.
Remember the old course standards had a code 124 wheel. Some one is
using that I believe.
On Sep 2, 2012, at 10:57 AM, Don Thompson wrote:
Dear Brooks,
I believe the AF comp. wheel profile we use was from the work of
Walter Graef of Ace. I was told he based his design on the NMRA
RP25 but with a wider tread and deeper flange.
Talmadge C 'TC' Carr
Sn42 and Hn42 somewhere in the wilds of the Pacific Northwest
[email protected]
