• EMD F3 demonstrator units

  • Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.
Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.

Moderator: GOLDEN-ARM

  by SSW921
 
Or compare to the FT tonnage tables and minimum continuous speed charts on page 14 of this linked manual: http://www.rr-fallenflags.org/manual/ft-om.pdf The F2 ratings are about 97.5% of the FT ratings. Do you think EMD tested all those different gear ratios on the F2s?
Ed in Kentucky
  by SSW921
 
Does anyone have any insight as to the where and when EMD tested the D8B, Dog Eight Baker, generator used on the F2. The D8B was the generator from the FT mated with the D14 companion alternator.

Ed in Kentucky
  by SSW921
 
Here's another question that may have already escaped history. Does anyone have any insight as to the where and when EMD tested high speed gearing in the F2/F3 before production started in July 1946? Remember the very first production F3s went to Santa Fe with 56:21 gearing. It seems like EMD would have speed tested the concept before any production locomotives were built. Likely candidates for high speed test runs would be Alton, Burlington and Santa Fe, others?. The first f unit cabs with steam generators installed were Southern 6700-6701. Ed in Kentucky