NYC Dreyfuss Hudson and C&O L-1 Hudson.
Finally, the last two Youtube uploads finished.
NYC Dreyfus by MTH.
https://www.youtube.com/watch?v=UhuzkwNuTaw
C&O L-1 streamlined hybrid Hudson by BLI.
https://www.youtube.com/watch?v=jEOJtk7u-zg
The BLI engine doesn't come with 'keep alive' so bought some super capacitors and the NMRA monthly magazine explains how to make them and BLI has instructions on where to solder the leads.