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Module 12. Helicopter aerodynamics, structures and systems

A pneumatic indicator takes its indications from

  • compressor inlet.
  • reservoir.
  • compressor outlet.

Explanation

A pneumatic (air/gas pressure) indicator reads the stored pressure in its system reservoir/accumulator, which holds the charged gas supply being monitored. Compressor inlet or outlet tappings would read a varying engine pressure, not the system's stored pneumatic supply.

Jordi asking:

we are talking abuot pleumatic what it has to do with reservoir?Shouldt it be compressor inlet or outlet?

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