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I am tasked with the design of a helipad for a remote government facility. Annex 14 Part II (ICAO Convention on International Civil Aviation) does not clearly state what materials are acceptable.

The most common materials are concrete and asphalt.

I want to use brick pavers.

Does anyone know of any risks or restrictions in this regard?

SlydeRule
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    Risk 1 : one gets dislodged and takes out rotor.... – Solar Mike Oct 29 '18 at 11:35
  • Risk 2: dust and small particles... – Solar Mike Oct 29 '18 at 11:36
  • Depending on the purpose for the helipad & the pavers used, some pavers can produce a bumpy, or uneven surface which would affect wheeled devices such a wheelchairs trollies or hospital gurneys. Also, they could create small puddles during rail fall. – Fred Oct 29 '18 at 13:24
  • Grass is perfectly acceptable so far as the helicopter is concerned, but as @Fred says it might not be acceptable to the users on the ground. – alephzero Oct 29 '18 at 13:50
  • @SolarMike since the downwash from a helicopter rotor is erm, downwards (and outwards from the helicopter) the chance of it causing something big and heavy on the ground to hit the rotor blades is remote. This is a very different airflow pattern from loose objects on the ground being sucked into jet engine intakes, which is a real-life problem. – alephzero Oct 29 '18 at 13:54
  • @alephzero so no need to keep helipads clean then... oh btw don't some helicopters use jet engines... Given the news in UK recently reducing risk of engine failure is a priority IMHO – Solar Mike Oct 29 '18 at 13:57
  • So all replies are opinions, but no particular design code, or requirements? – SlydeRule Nov 18 '18 at 09:16

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