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基准飞行航迹
基准航迹
The approach reference flight path must be calculated using the following
进场基准飞行航迹计算如下:
The takeoff reference flight path must be calculated for the following atmospheric conditions
(b) 起飞基准飞行航迹必须按下列大气条件计算:
Measured flight path that is different from the reference flight path.
(ii) 测量航迹与基准航迹不同。
The takeoff reference flight path is to be calculated using the following
起飞基准航迹应按如下计算:
Differences in the noise path length between the actual airplane flight path and the reference flight path.
(2) 实际的飞机飞行航迹与基准飞行航迹之间噪声路径的长度差别。
For the purpose of determining the lateral noise level, the reference flight path must be calculated using full takeoff power throughout the test run without a reduction in thrust or power.
(3) 为测定全功率横侧噪声级,应在使用全起飞功率而没有推力或功率降低的基础上计算基准飞行航迹。
A36.3.5.2 The microphone must be mounted with the sensing element 1.2 m (4 ft) above the local ground surface and must be oriented for grazing incidence, i.e., with the sensing element substantially in the plane defined by the predicted reference flight path of the aircraft and the measuring station.
Qr is the corresponding position on the reference flight path, and Kr the reference measuring station.
Qr 是在基准飞行航迹上对应的位置。 而Kr 是基准测量点。
The reference flight path, ErKr represents a stable flight condition in terms of torque, RPM, indicated airspeed, and rate of descent resulting in a 6º approach angle.
基准飞行航迹,ErKr 表明是在稳定的飞行条件运行,即扭矩,rpm,指示空速和6º进场角的下降率。
Q represents the airplane's position on the measured flight path at which the noise was emitted and observed as PNLTM at the noise measuring station K. Qr is the corresponding position on the reference flight path, and Kr the reference measuring station.
XY represents the portion of the measured flight path that includes the noise time history relevant to the calculation of flyover and approach EPNL; XrYr represents the corresponding reference flight path.
The necessary EPNL adjustment for variations in approach flight path from the reference flight path must not exceed 2 EPNdB.
由于进场飞行航迹偏离基准飞行航迹所必须进行的EPNL 调整不得超过2EPNdB。
The aircraft position relative to the takeoff reference flight path must be determined by an approved method independent of normal flight instrumentation, such as radar tracking, theodolite triangulation, or photographic scaling techniques.
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