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  #43  
Old 20th August 2020, 22:31
Makko Mexico Makko is offline
Senior Member
 
Join Date: Apr 2017
Location: Mexico City, Mexico
Posts: 948
The RD had a flocking great chain drive. The valve blades were spring loaded compressed carbon/graphite, more fragile than a butterfly's wing! The actual valve body was a huge, coffin shaped monstrosity. Plenty of problems with reed valves etc. on an engine running on HFO which was designed for MDO!
Rgds.
Dave
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