==glej tudi==*batni motor*probatni motor ali bokser*michelov motor*junkers jumo 205*commer ts3*leyland l60*rollsroyce k60*napier deltic motor==reference====zunanje povezave==*opposed piston engines website*history of the pescara opposedfreepiston engine*fairbanksmorse 38d8 diesel engine*achates power engine*opposed piston opposed cylinder engine video at engineering tv*toroidal free opposed piston engine from franky devaere*http//wwwsixstrokecom/*opre engine*patop engine*startups work to reinvent the combustion engine*pinnacle engines*[http//userstelenetbe/doxfordmatters]