980 

14 CFR Ch. I (1–1–14 Edition) 

Pt. 36, App. J 

(2) Two sideline noise measurement points, 

designated as S

(

sideline

)

, are located on the 

ground perpendicular to and symmetrically 
stationed at 492 feet (150 m) on each side of 
the flyover reference flight path. The meas-
urement points bisect the centerline flight 
path reference point A. 

(c) 

Approach reference noise measurement 

points— 

As shown in Figure K3 below: 
(1) The centerline noise measurement 

flight path reference point, designated A, is 
located on the ground 394 feet (120 m) 
vertically below the reference approach 

flight path. The measurement point is de-
fined by the approach reference procedure in 
section K6.4 of this appendix. On level 
ground, the measurement point corresponds 
to a position 3,740 feet (1,140 m) from the 
intersection of the 6.0 degree approach path 
with the ground plane; 

(2) Two sideline noise measurement points, 

designated as S(starboard) and S(port), are 
located on the ground perpendicular to and 
symmetrically stationed at 492 feet (150 m) 
on each side of the approach reference flight 
path. The measurement points bisect the 
centerline flight path reference point A. 

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