Homework 3
Name: Marcos López D.
The RSA of Runway 9-27 below must be graded to FAA standards and the runway
shoulders should be paved. The diagram below shows existing ground contours
indicating areas of equal elevation in feet. The runway is a non-precision instrument
runway, and the critical aircraft is a B727-200 with an ARC of C-III and a MTOW of
209,500 pounds. Considering the existing topography and the desire of the current airport
management to minimize the amount of cut and fill while grading, determine the following:
1. The standard runway width, the shoulder width, the RSA width, RSA length prior
to landing threshold and the RSA length beyond the runway end.
2. The ERG, given Runway 9-27 length = 8,500 feet.
3. The recommended elevation at Point X, at the edge of the RSA. Hint - draw a
sketch of the longitudinal section first.
4. The lowest possible elevation at Point Y at the edge of the paved runway shoulder.
Data:
Non-precision instrument runway MTOW: 209 500 pounds
Critical Aircraft: B727-200/C-III Runway 9-27 Length: 8 500 ft
1. C-III
Runway width 150 ft
Shoulder width 25 ft
RSA width 500 ft
RSA length prior to landing threshold 600 ft
RSA length beyond the runway end 1000 ft
Name: Marcos López D.
The RSA of Runway 9-27 below must be graded to FAA standards and the runway
shoulders should be paved. The diagram below shows existing ground contours
indicating areas of equal elevation in feet. The runway is a non-precision instrument
runway, and the critical aircraft is a B727-200 with an ARC of C-III and a MTOW of
209,500 pounds. Considering the existing topography and the desire of the current airport
management to minimize the amount of cut and fill while grading, determine the following:
1. The standard runway width, the shoulder width, the RSA width, RSA length prior
to landing threshold and the RSA length beyond the runway end.
2. The ERG, given Runway 9-27 length = 8,500 feet.
3. The recommended elevation at Point X, at the edge of the RSA. Hint - draw a
sketch of the longitudinal section first.
4. The lowest possible elevation at Point Y at the edge of the paved runway shoulder.
Data:
Non-precision instrument runway MTOW: 209 500 pounds
Critical Aircraft: B727-200/C-III Runway 9-27 Length: 8 500 ft
1. C-III
Runway width 150 ft
Shoulder width 25 ft
RSA width 500 ft
RSA length prior to landing threshold 600 ft
RSA length beyond the runway end 1000 ft
