C upes not for reproduction sale unit 1 airport

This preview shows page 10 - 13 out of 334 pages.

(c) UPES, Not for Reproduction/ Sale
Image of page 10
UNIT 1: Airport Surface Operations Notes ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ (ii) intended for operations with a decision height lower than 15 m (50 ft), or no decision height and a runway visual range less than 200 m but not less than 50 m. (iii) intended for operations with no decision height and no runway visual range limitations. Declared Distances of Runways Let us discuss the declared distances of runways: Take-off Run Available (TORA): The length of runway declared available and suitable for the ground run of an airplane taking off. Take-off Distance Available (TODA): The length of the take-off run available plus the length of the clearway, where provided (the clearway length allowed must lie within the aerodrome or airport boundary). Accelerate Stop Distance Available (ASDA): The length of the take-off run available plus the length of the stopway, where provided. Landing Distance Available (LDA): The length of runway which is declared available and suitable for the ground run of an aeroplane landing. Threshold of a Runway Threshold of a runway can be discussed in the following manner: (a) The Runway Strip is the cleared, grassy area around the paved runway. It is kept free from any obstacles that might impede flight or ground roll of aircraft, although the grass is not always necessarily in good condition. The grass is often marked with white cones or gables. (b) The Runway is the entire paved surface, which typically features threshold markings, numbers, centre lines, and overrun areas at both ends. (c) Stopways (depicted in Figure 1.3) also known as overrun areas are also constructed at the end of runways as emergency space to slowly stop planes that overrun the runway on a landing gone wrong, or to slowly stop a plane on an aborted takeoff or a takeoff gone wrong. Stopways are often not as strong as the main paved surface of the runway and are marked with yellow (c) UPES, Not for Reproduction/ Sale
Image of page 11
Notes ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ ___________________ Aviation Safety & Security Management chevrons. Planes are not allowed to taxi, takeoff or land on stopways, except in an emergency. Source: ww.wikipedia.org Figure 1.3: Stopway (d) Threshold: The beginning of that portion of the runway usable for landing. (e) Displaced threshold means that a threshold not located at the extremity of a runway. Displaced threshold is the point at the end of the runway. In major airports, it is usually marked with white paint arrows that lead up to the displaced threshold (see Figure 1.4). Smaller runways may not have markings to indicate the displaced threshold. Source: Figure 1.4: Threshold and Displaced Threshold A displaced threshold may be used for taxiing and take off but not for landing, because obstacles just before the runway, runway strength, or noise restrictions may make the area unsuitable for landings.
Image of page 12
Image of page 13

You've reached the end of your free preview.

Want to read all 334 pages?

  • Fall '19
  • Instrument approach, Runway, Rajiv, Aviation Safety & Security Management

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors