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Old 7th Jun 2018, 10:28
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A Squared
 
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Originally Posted by FE Hoppy
Anyone want to list aircraft with manual dump valves?
DC-6 had a "Johnson bar" beside the copilot's seat which would open the outflow valves and de-clutch the pressurization superchargers. C-130 has a cable release for a panel in one of the overhead hatches.
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