---
title: "CS HPT-DSN.F.570 Touchdown/positioning marking — Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1, Aerodromes · Avioverse"
description: "Applicability: A touchdown/positioning marking should be provided where it is necessary for a helicopter to touch down and/or be accurately positioned."
url: "https://avioverse.aero/regulations/easa/aerodromes/cs-hpt-dsn/chapter-f-visual-aids/cs-hpt-dsn-f-570"
---

# CS HPT-DSN.F.570 Touchdown/positioning 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.570 Touchdown/positioning marking

(a) Applicability:

(1) A touchdown/positioning [marking](https://avioverse.aero/glossary/easa/marking) should be provided where it is necessary for a helicopter to touch down and/or be accurately positioned.

(2) A touchdown/positioning marking should be provided on a [helicopter stand](https://avioverse.aero/glossary/easa/helicopter-stand) designed for turning.

(b) Location:

(1) A touchdown/positioning marking should be located so that when the pilot’s seat is over the marking, the whole of the undercarriage should be within the TLOF and all parts of the helicopter should be clear of any [obstacle](https://avioverse.aero/glossary/easa/obstacle) by a safe margin.

(2) On a [heliport](https://avioverse.aero/glossary/easa/heliport), the centre of the touchdown/positioning marking should be located at the centre of the TLOF, except the centre of the touchdown/positioning marking may be offset away from the centre of the TLOF where a safety assessment indicates such offsetting to be necessary, and providing that a marking that is so offset would not adversely affect safety.

(3) For a helicopter stand designed for hover turning, the touchdown/positioning marking should be located in the centre of the central zone (see Figure D-1).

(c) Characteristics:

(1) A touchdown/positioning marking should be a yellow circle and have a line width of at least 0.5 m.

(2) The inner diameter of the touchdown/positioning marking should be 0.5 D of the largest helicopter the TLOF and/or the helicopter stand is intended to serve.

IR · CS HPT-DSN.F.570 — 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.