---
title: "CS HPT-DSN.F.550 Aiming point marking — Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1, Aerodromes · Avioverse"
description: "The safety objective of an aiming point marking is to provide a visual cue indicating to the pilot the preferred approach/departure direction, to the…"
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids/cs-hpt-dsn-f-550"
---

# CS HPT-DSN.F.550 Aiming point marking

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

IR Implementing rule

## CS HPT-DSN.F.550 Aiming point marking

(a) The safety objective of an aiming point [marking](https://avioverse.aero/glossary/easa/marking) is to provide a visual cue indicating to the pilot the preferred approach/departure direction, to the point to which the helicopter approaches to hover before positioning to a stand where a touchdown should be made, and that the surface of the FATO is not intended for touchdown.

(b) Location: Where provided, the aiming point marking should be located within the FATO (see Figure F-1).

(c) Characteristics:

(i) The aiming point marking should be an equilateral triangle with a minimum side length of 9.0 metres, with the bisector of one of the angles aligned with the preferred approach direction.

(ii) The marking should consist of continuous white lines, 1.0 m in width (see Figures F-1 and F-12).

IR · CS HPT-DSN.F.550 — Regulation (EU) No 139/2014 · ED Decision 2019/012/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in CHAPTER F — VISUAL AIDS](https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids)

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