A couple rotary engines come alive for the first time in a loooong while.

[TX-EcoDragon]

2009 05 10 1918 WWI GNOME ROTARY AEROPLANE ENGINE STARTED

1909 Gnome Omega Rotary Aircraft Engine

1919 LeRhone Rotary Engine finally shows some initial signs of life.

[TX-EcoDragon]

Cutaway of pre-WWII Gnome N-9 propellor engine

[TX-TOAD]

I really enjoyed the first one.

Being a Mechanic, I could truly enjoy bringing these old things back to life, even if only on a stand.