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At these times, the clock runs slower. Depending on the type of flight, tach time can be 10–20% less than Hobbs time. Many organizations, such as flying clubs, charge by tach time so as to differentiate themselves from fixed-base operators as 10–20% less time recorded makes it 10–20% cheaper to fly (if the hourly rate is the same). In the ...
The tach timer is usually used to schedule engine maintenance, although it is just an approximation of "Time in service" which is used to time and schedule aircraft maintenance. Time in service is defined in 14 CFR 1.1 [ 2 ] as the actual time in the air, whereas tach time measures engine revolutions, which would still count time on the ground ...
For an aircraft equipped with a constant speed propeller, this is the most direct indication of the engine's operating power. A fully open throttle would show a manifold pressure roughly equal to the ambient air pressure, i.e. full power; note that the maximum therefore changes with altitude unless the engine is equipped with a turbocharger or ...
A Quick Reference Handbook (QRH) is an aircraft technical document – quick-access manual for aircraft pilots that contains all the procedures applicable for non-normal and emergency conditions in an easy-to-use format. In addition, performance data corrections are also provided for specific conditions.
A tachometer that can indicate up to 7000 RPM (left) A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. [1] The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are ...
integrity of fabric coverings on aircraft bevameter: mechanical properties of soil bolometer: electromagnetic radiation Brannock Device: measuring shoe size breathalyzer: breath alcohol content caliper: length calorimeter: heat of chemical reactions cathetometer: vertical distances ceilometer: height of a cloud base chronometer or clock: time ...
Aircraft specific NATOPS manual cover. These manuals are typically about 2 inches thick. These are manuals for specific aircraft models containing standardized ground and flight operating procedures, training requirements, aircraft limitations, and technical data necessary for safe and effective operation of the aircraft.
An aircraft flight manual (AFM) is a paper book or electronic information set containing information required to operate an aircraft of certain type or particular aircraft of that type (each AFM is tailored for a specific aircraft, though aircraft of the same type naturally have very similar AFMs). The information within an AFM is also referred ...