pitot static system

pitot static system

(pētō`), device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for aircraft and a distance and speed indicator for ships. The device contains a short tube with one open end that faces directly toward the stream of air or other fluid. When no fluid is moving into the opening, a minimum pressure, called the static pressure, is exerted against it. When a stream is flowing into it, the pressure rises by an amount that depends on the velocity of the stream. Behind this tube is another tube with a number of small vents at right angles to the direction of the first tube. When a stream raises the pressure against the opening of the first tube, the pressure against the vents is still equal to the static pressure. A suitable gauge compares these pressures, using the static pressure as a reference, and gives a reading in units of velocity. For an aircraft this reading is called "indicated airspeed"; "true airspeed" requires a correction, made automatically by some airspeed indicators, for the local density of the air. Because of winds, neither reading accurately measures the speed in relation to a point on the surface of the earth. That value is known as groundspeed. Although airspeed is normally given in knots or miles per hour, for supersonic aircraft it may be given in Mach numbers, which give the ratio of the aircraft's speed to the speed of sound. For navigational purposes Mach numbers are converted to true airspeed.
References in periodicals archive ?
While this is checked when the pitot static system is recertified, a problem can come up when maintenance is performed on an adjacent system.
To clean and maintain your pitot static system, check out Chapter 4 of TM 1-1500-20423-4.
Safe Flight maintains its SCx system is superior to existing systems such as the Bendix-King KLR 10, which use pressure differential input from an under-wing differential pressure sensor, similar to the aircraft pitot static system.
AT FL450, the pitot static system failed, which resulted in a loss of indications for airspeed (including standby airspeed), altitude and engine-pressure-ratio (EPR) .
This condition adversely affects the accuracy of the pitot static system, resulting in degraded altitude reporting and a resultant disqualification of RVSM certification.
Full IFR capability -- 3 large EFIS displays for PFDs and MFD -- Flight management systems -- 3-axis autopilot -- Color weather radar -- Dual VHF communication -- Dual VHF navigation -- Dual localizer and glide slopes -- Dual mode S transponder -- Dual GPS, IFR enroute and approach certified -- Dual AHRS with air data computer -- Dual pitot static system -- Certified for known icing -- Standard interior with five seats -- Standard paint scheme -- Air conditioning
ALWAYS TEST YOUR PITOT STATIC SYSTEM LIKE YOUR APPLICABLE TM SAYS.
AND ALSO FOLLOW THE MAINTENANCE STEPS IN EACH AIRCRAFT'S TM TO CHECK AND CLEAN YOUR PITOT STATIC SYSTEM.
In addition, airspeed indication may fluctuate greatly or appear unusually high or low due to volcanic dust blocking the pitot static system.
Comprehensive avionics and electronics suite -- Full IFR capability -- Three large EFIS displays for PFDs and MFD -- Flight management system -- 3-axis auto pilot -- Color weather radar -- Dual VHF com -- Dual VHF nav -- Dual localizer and glide slope -- Dual mode S transponder -- Dual GPS, IFR enroute and approach certified -- Dual AHRS with air data computer -- Dual pitot static system -- Certified for known icing -- Five seats standard (with an optional six-seat configuration) -- Standard interior and paint scheme -- Air conditioning
Mechanics, water doesn't belong in the pitot static system of your bird.