What is "Other Power"

[MH81]

It can be anything that provides a shaft output.
Intended to be for any fuel power that wasn't covered in other forums, it could also be for non fuel units.
Like this

 

[dh1]

Or this? One of my dreams that never happened.

 

[CRF6179]

Or this? One of my dreams that never happened.

And how many batteries was that going to require?

 

[MH81]

And how many batteries was that going to require?

All of them

 

[UncleWillie]

4aaa