Estimating Runway Length
Other than orientation,
planning and designing the length of a runway is critical to whether or not a
particular aircraft can safely use the runway for takeoff or landing.
Furthermore, designing a runway to accommodate a given aircraft is a difficult
task, given the fact that an aircraft's required runway length will vary as
well as on several ambient conditions.
As a guide to airport planners, the FAA has
published Advisory Circular 150/5325-4b, ?Runway Length Requirements for
Design? . In this publication, procedure the design runway length of
aircraft, based on their maximum takeoff weights (MTOW), certain aircraft
performance specifications, and the airport's field elevation and temperatur
design runway length is found for the critical aircraft, defined as the aircraft
which flies the greatest nonstop route segment from the airports at least 500
operations per year and requires the longest runway.
The FAA's procedure for
estimating runway le following data:
of a critical aircraft
The maximum takeoff weight of the
critical aircraft at the airport
The mean daily maximum temperature for
the hottest month at the airport
The maximum different in elevation along
the runway centerline.
For the purposes of
estimating runway length requirements, the