The speed difference had nothing to do with the status of the tilt system here. The speed limit on the curve at this location is 130 mph for revenue Acelas with the tilt active. Last week, the test train was making 130 through here with the tilt deactivated. It just so happens in this specific...
For the purposes of testing, they are running with the same pan up, ie, they are not switching pans each time they change directions. The pantograph on Power Car #1 (PC adjacent to the First Class car) is the one that is equipped with the instrumentation, so that is the pan that is being used...
TS2 is scheduled for positioning move to Boston tomorrow morning, 4/5/21, following 172 east out of PHL. It will stay up that way for the foreseeable future in order to conduct representative route testing between Providence and Westerly during the AM daylight hours.
There you go spouting false information again... The product is still being offered as part of the Motive Power catalog
https://www.wabtec.com/products/5101/mp32-mp36-and-mp40-diesel-electric-commuter-locomotives
It is however unlikely that any future orders for the 36-40 versions would...
A dual mode charger is going to be no heavier than the ALP-45DP (which is only slightly heavier than the regular charger). It will likely have the same starting tractive effort as the regular charger, be capable of 4000 hp in diesel mode (higher in electric), and have similar higher speed...
Engines are as light as they can be to still perform satisfactorily with the trains they are assigned. Beyond a certain point, you begin to lose adhesive weight, and thus begin to limit the amount of tractive effort a locomotive can effectively apply to the rails, and thus lowering overall...