He then noticed that although the ice protection switch was on, the pitot
heat was off.
While a pitot
tube can become blocked by liquid or frozen water, airframe ice, foreign material and, especially, insects, the static ports aren't placed directly into the slipstream and usually don't pick up ice.
Under these circumstances the measured duct relative roughness based on Pitot
tube pressure loss data equaled 0.
With the pitot
tubes frozen, instruments on the plane were not giving them useful information.
The high-speed sampling and symmetrical design of the averaging pitot
tube provides the EFM-HS with the ability to accurately measure reverse flow due to engine pulsations and to properly account for this phenomenon in the average flow rate determination, the company said.
A dos semanas del accidente del vuelo A447 Rio-Paris, que cayo al Atlantico el 1 de junio con 228 personas a bordo, las primeras sospechas sobre las causas caen sobre los sensores Pitot
, que permiten controlar la velocidad de los aviones y que brindaron datos incoherentes a los pilotos del A330 de Air France.
Without key information from the Airbus 330's missing data recorders, investigators have focused on the possibility that external speed monitors - Pitot
tubes - iced over and gave false readings to the plane's computers as it flew into thunderstorms.
Investigators have said there were "inconsistencies" with speed readings prior to the crash, raising speculation that speed sensors on the A330-200 jet, known as pitot
tubes, may have iced up, feeding wrong information to the cockpit and confusing the pilots as they hit a storm.
With the plane's data recorders still apparently deep in the ocean, investigators have been focusing on the possibility that external speed monitors - called Pitot
tubes - iced over and gave false readings to the plane's computers in a thunderstorm.
Investigators are looking at the possibility that external speed monitors - called Pitot
tubes - iced over and gave dangerously false readings to cockpit computers in a thunderstorm.
A memo sent to pilots said Air France have been replacing the instruments - known as pitot
tubes and responsible for feeding flying speed data to the aircraft's instruments and computers.
I'd never even heard of a pitot
, but it turns out it's an open-ended, right-angled tube pointing into the flow of fluid, used for measuring pressure.
, executive director of the National Association of Automotive Component and Allied Manufacturers (Naacam) tells Automotive Industries (AI) about the growth of component exports.
The DH3 offers simplified programming via a menu key that enables the user to select: security level; set point or set point and alarm operation; auto or manual alarm reset; English or Metric engineering units; pressure, velocity or flow operation, K-factor for use with various Pitot
tubes and flow sensors, circular or rectangular duct size for volumetric flow operation plus many more.
The company inspection showed that the so-called pitot
tubes installed in the nose section of the plane were clogged with bugs and apparently indicated incorrect speeds at the time of incident, leading the pilots to fail to carry out appropriate operations.