Traditional round gauges are found in many aircraft. The pointer moves clockwise to indicate an increase in airspeed. The instrument may be calibrated to show statute miles per hour, knots (nautical miles per hour), or sometimes both. A true airspeed indicator has a dial for inputting the cur...
aFlight test engineers like to use the indicated airspeed corrected for measuring inaccuracies (known as calibrated airspeed, CAS). 试飞工程师喜欢为测量的不精确性使用校正的被表明的空速(以被校准的空速, CAS著名)。[translate]