Instrument Exhaust Gas Dump Pressure
Measurements Provided: Absolute pressure of exhaust manifold
Long rigid tubes 5 cm dia are installed on left and right sides of the fuselage cabin. These tubes have collection fittings at several locations where air sample instruments can vent their exhaust. The tubes vent to the belly of the aircraft and have a skarf tube cut that provides a pressure reduction. Pressure sensors are located near the vent locations.
- Overall estimate of uncertainty: <1% fs
- Response time: 1 s