How do the helicopter's outside visibility and lower speed affect the RVR required for a CAT I approach under HELI SA CAT I?

The better outside visibility and the lower speed allow a reduction in the RVR required for the approach, for a given DH.

Under what conditions can the DH be reduced below the standard minimum of 200 ft in HELI SA CAT I operations?

With a 4-axis autopilot and auto-level-off capability, the DH can be reduced from the standard minimum of 200 ft down to 150 or 130 ft.

GM6 SPA.LVO.100(c) Low-visibility operations and operations with operational credits

Q: What is HELI SA CAT I and how does it relate to a standard CAT I approach?

HELI SA CAT I is an operational credit applied to a CAT I operation, not a separate approach classification. It exploits a navigation solution with superior performance to that required for standard CAT I by extending the instrument segment of CAT I approach operations.

Q: What are the key components of the navigation solution that enable HELI SA CAT I?

The navigation solution may be an ILS installation with the necessary performance coupled to a suitably certified 3- or 4-axis autopilot capable of handling low speeds, together with the superior outside visibility of the helicopter on the visual segment, and the go-around performance of a helicopter.

Q: Is HELI SA CAT I considered a separate approach classification?

No, HELI SA CAT I is not a separate approach classification; it is an operational credit applied to a CAT I operation.

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GM6 SPA.LVO.100(c) Low-visibility operations and operations with operational credits

ED Decision 2022/012/R

OPERATIONS WITH OPERATIONAL CREDITS — HELICOPTER SPECIAL AUTHORISATION CATEGORY I (HELI SA CAT I) OPERATIONS

HELI SA CAT I is an operational credit that exploits a navigation solution with superior performance to that required for standard CAT I by extending the instrument segment of CAT I approach operations. This navigation solution may be an ILS installation with the necessary performance coupled to a suitably certified 3- or 4-axis autopilot capable of handling low speeds, together with the superior outside visibility of the helicopter on the visual segment, and the go-around performance of a helicopter. The better outside visibility and the lower speed allows a reduction in the RVR required for the approach, for a given DH. With a 4-axis autopilot and auto-level-off capability, the DH can also be reduced from the standard minimum of 200 ft down to 150 or 130 ft.

HELI SA CAT I is not a separate approach classification; it is an operational credit applied to a CAT I operation.

Details

Source-Title: GM6 SPA.LVO.100(c) Low-visibility operations and operations with operational credits View latest amendments

Erulesid: ERULES-1963177438-19817 Compare versions

Domain: Air operations

Applicabilitydate: 30 October, 2022

Entryintoforcedate: 1 July, 2022

Regulatorysource: ED Decision 2022/012/R Navigate

Regulatorysubject: Part-SPA

Typeofcontent: GM to IR (Guidance material to implementing rule)

Parentir: SPA.LVO.100 Low-visibility operations and operations with operational credits

Origin: EASA

Category: EAR