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GM1 HPT-DSN.B.100 Final approach and take-off areas (FATOs)

Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

GMGuidance material

GM1 HPT-DSN.B.100Final approach and take-off areas (FATOs)

(a)General:

(1)A FATO may not be necessary to be provided at and aerodrome, where the runway is used for the purposes of final approach and take-off of helicopters.

(2)Where a FATO is located near a runway or taxiway, and when simultaneous helicopter and aeroplane operations are planned, the separation distance between the edge of a runway or taxiway and the edge of a FATO should not be less than the appropriate dimension in Table GM1-B-1.

(3)Operational limitations should be considered under certain wind conditions.

If aeroplane mass and/or helicopter mass areDistance between FATO edge and runway edge or taxiway edge
up to but not including 3 175 kg60 m
3 175 kg up to but not including 5 760 kg120 m
5 760 kg up to but not including 100 000 kg180 m
100 000 kg and over250 m
Note: The values specified in this table are primarily intended to mitigate risks of wake turbulence encounters. In addition to this table, when positioning a FATO intended to be used simultaneously with a nearby runway or taxiway, attention should be given to other CS ADR-DSN requirements such as the minimum runway strip width. Local environment should be taken into account when setting the separation between the FATO and nearby infrastructure elements to ensure the safety of simultaneous operations.

Table GM1-B-1. FATO minimum separation distance

(b)A FATO should not be located:

(i)near taxiway intersections or holding points where jet engine efflux is likely to cause high turbulence; or

(ii)near areas where aeroplane vortex wake generation is likely to occur.

GM · GM1 HPT-DSN.B.100 — Regulation (EU) No 139/2014 · ED Decision 2019/012/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

All rules in CHAPTER B — HELICOPTER OPERATING AREAS

Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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