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  1. Helipad - Wikipedia

  2. How Much Space Do You Need for a Helipad? - Helidex

  3. Heliports: Types and Construction Features – theconstructor.org

  4. Differences Between Helicopter Landing Pads - Helidex

  5. Helipad vs. Heliport — What’s the Difference?

  6. Helipad Design and Construction: A Comprehensive Guide

  7. A guide to helipads and their different types

  8. Aluminum Helidecks, Helipads, and Heliports - Helidex

  9. What is a Helipad? (with pictures) - WikiMotors

  10. Specific criteria must be met for secure landings on a helipad.