Phase 3 Commuter Non-Dynamic: Massachussets Bay Transportation Authority
Amtrak's second F40PH order incorporated several changes to the original Phase 1 design. Phase 2a and 2b units (230-279, 280-328) received larger 1800-gallon fuel tanks mounted toward the front of the frame. The air reservoirs were shifted toward the rear and to the engineer's side, while the battery boxes were located on the fireman's side. Newer and wider Nathan K5LA horns were specified, requiring a wider horn notch on the cab roof. Units 280-328 (termed Phase 2b) had four vertical ribs at the rear of each side.
When new EPA regulations took effect in 1980, the radiator fans were replaced by quieter Q-fans creating the Phase 3 version of the F40PH. Phase 3 F40s share other spotting features with the Phase 2b F40. Many Phase 3 units were built for commuter agencies as well, but without dynamic brakes.
Amtrak's F40PH units were eventually fitted with nose ditch lights. Around the same time the cab side steps and door were modified. Several F40PH units were sold to second-hand owners for use in regional and tourist services.
Features: Extensive, separate underbody piping and conduit Correct body details for each variation Era-specific details Working head lights, backup light, strobe and marker lights Working ditch lights where appropriate Separate, factory-applied wire grab irons See-through, etched-metal radiator grills and dynamic brake grills Full cab interior painted in correct colors Scaled from original blueprints to ensure accurate dimensions Accurate fuel tank profile and exhaust silencer Sound-equipped models feature a custom ESU LokSound V5 decoder