Undecorated Drawings - MON

Selected scales:

Model	Built	Phase	Numbers	Qty	Notes	Last modified
GE U23B ← →	1970-03 - 1970-05	2c	MON 601-608	8		2022-02-10Revision history: 2020-12-31 - Increased corner handrail thickness 2021-02-05 - Fuel filler - Higher footboards 2021-02-09 - Air filter bracket and piping behind fuel tank (right side) - Added sloped plate under frame behind draft gear - Added missing section of angled pilot brace behind steps - Added missing end transoms on trucks 2021-02-13 - Longer handrail stanchion in front of cab (right side) 2022-02-08 - Coupler cut lever and pilot details - Corner handrail and step bolts - Cab window gaskets

1:55 Drawings

Model	Phase	Numbers	Notes	Accuracy
ALCO C-420 ←	2	MON version	No dynamic brakes	Accuracy legend for 1:55 drawings: * * 2007-2008 drawings (mostly accurate) * * 2005-2007 drawings (generally accurate) * 2000-2004 drawings (not dimensionally accurate)

ALCO C-628 ← →	1	MON 400-408		* * Accuracy legend for 1:55 drawings: * * 2007-2008 drawings (mostly accurate) * * 2005-2007 drawings (generally accurate) * 2000-2004 drawings (not dimensionally accurate)