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Twitch said:That's the PT-22. Ouch!
An STM has an in-line engine, probably a Menasco, the PT-22 has a radial (Jacobs). The structure is real similar.pbfoot said:okay I'm stumped whats the difference between a pt22 and the stm aside from wheel pants
asked a excellent source my father who worked on the pt22s and he said the Warner Scarab and Kinner which he states were almost interchangeable plus the MenascoFLYBOYJ said:For some reason I thought I saw one with a jacobs?!?