[WWI] rotaries--2 stroke or 4?

[Douglas Anderson]

As far as I am aware they were all four stroke
  Which reminds me, when I get home I will scan and post the RFC manual for motors. 

iban <ibancorp at tds.net> wrote:
  does anyone know? were the various rotary engines mostly four strokes? 
were there any two strokes among them? if so, which ones?

iban.



 
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