Instrument designed for photographic recording of pressure differences at selected points around airplane during flight is described; two Venturi or Pitot tubes are connected to two semi-circular manometer tubes; difference of pressure is indicated by movement of vertical needle.
Differential manometer for use during airplane flights
Sur un appareil pour la comparaison des vitesses ae rodynamiques autour d'un avion
1929
4 pages
2 Figs.
Article (Journal)
French
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