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- Tach_Timer abstract "The Tach(ometer) Timer is an instrument used in aviation to accumulate the total number of revolutions performed by the engine. The unit of measure is equivalent to the number of hours of running at a certain, specific reference speed of rotation. If the reference speed of rotation is 2400 RPM then the Tach Timer records elapsed real (i.e. clock) time when the engine is running at 2400 RPM. However, the timer will run at half clock speed while the engine is run at 1200 RPM (a fast idle for some aviation engines) or at 5/6ths real time at 2000 RPM (a slow cruise speed). So the Tach Timer operates slower than clock time when the engine is operating at low speeds of rotation and faster than clock time at higher speeds of rotation.The tach timer integrates over time the instantaneous rotation speed displayed by the tachometer. The displayed number is incremented by one if the engine is run at its reference speed for one hour. The quantity recorded is referred to as tach(ometer) hours. If the reference rotation speed is 2400 RPM then the tach timer records".
- Tach_Timer wikiPageID "6202791".
- Tach_Timer wikiPageRevisionID "575627829".
- Tach_Timer hasPhotoCollection Tach_Timer.
- Tach_Timer subject Category:Aircraft_instruments.
- Tach_Timer type AircraftInstruments.
- Tach_Timer type Artifact100021939.
- Tach_Timer type Device103183080.
- Tach_Timer type Instrument103574816.
- Tach_Timer type Instrumentality103575240.
- Tach_Timer type Object100002684.
- Tach_Timer type PhysicalEntity100001930.
- Tach_Timer type Whole100003553.
- Tach_Timer comment "The Tach(ometer) Timer is an instrument used in aviation to accumulate the total number of revolutions performed by the engine. The unit of measure is equivalent to the number of hours of running at a certain, specific reference speed of rotation. If the reference speed of rotation is 2400 RPM then the Tach Timer records elapsed real (i.e. clock) time when the engine is running at 2400 RPM.".
- Tach_Timer label "Tach Timer".
- Tach_Timer sameAs m.0fwk4_.
- Tach_Timer sameAs Q7673691.
- Tach_Timer sameAs Q7673691.
- Tach_Timer sameAs Tach_Timer.
- Tach_Timer wasDerivedFrom Tach_Timer?oldid=575627829.
- Tach_Timer isPrimaryTopicOf Tach_Timer.