Originally Posted by vzon17

...Bob Teal motor schematic, it showed there being two windings on each solenoid, no mention was made why this was.
I figure it was maybe Teal doubled up on the windings to reduce resistance.

It gave me another idea in my motor obsessed mind though and that what if one would put two solenoid coils right one behind the other to increase length of power stroke. then wire them up so the collapse of the first coil dumps into the second one for additional pull.