OLD RADIAL vs ROTARY Engines Cold Starting up and Great Sound 2

[@stevepringle2295]

Watch out for caster oil when standing behind those rotary engines 😂

[@phihelix8777]

Did that 1st one have a Turbo charger on every piston?

[@Slaktrax]

No. It's a sleeve valve radial. Look up ''sleeve valve radials''.

[@楊勝堯-y6t]

generating carbon dioxide for fun...