What you need to know about obtaining and maintaining your Helicopter Landing Area Certificate.
A Helicopter Landing Area Certificate (HLAC) is the document that confirms a vessel's helideck complies with applicable aviation and maritime regulations. It is issued by an accredited Aviation Inspection Body following a successful on-site audit.
The certificate displays the D-value (size of helicopter accommodated) and T-value (maximum weight), along with any limitations that may apply. It is valid for 12 months and must be renewed annually.
The audit covers three main areas:
The structural integrity of the landing area, deck markings, the 'D' and 'T' values, obstacle clearance in the approach and departure paths, and the surrounding obstacle environment.
Firefighting systems (Fixed Monitor Systems, Deck Integrated Fire Fighting Systems, foam test certificates), perimeter safety netting, lighting systems, meteorological reporting equipment, motion sensors, and communications equipment.
Evidence that the Helicopter Landing Officer (HLO) and Helideck Assistants (HDAs) are trained and assessed as competent, and that documented operating procedures are in place and current.
The on-site inspection can typically be completed in one day, but thorough preparation is essential. Key preparation steps:
HLACs are issued by Aviation Inspection Bodies accredited by the relevant maritime authority. For Red Ensign Group registered vessels, the MCA appoints approved bodies. Other flag states have their own accreditation processes.
The fundamental problem with helideck regulation in the yacht industry is that it is overseen by maritime authorities, not aviation authorities. Flag states — the MCA, Cayman Islands Shipping Registry, Marshall Islands Maritime Administrator, and others — are responsible for the safety of the vessel and its equipment, including the helideck. But a helideck is an aviation facility. It exists to support aircraft operations, and the risks associated with it are overwhelmingly aviation risks.
The question that should be asked is: what aviation expertise did these flag state administrations draw upon when they drafted their helideck regulations?
Most flag state yacht codes (the Red Ensign Group Yacht Code, Marshall Islands MI-103, Malta CYC) reference CAP 437 — the UK CAA's offshore helideck standard — as the benchmark. CAP 437 is an aviation document, written by the UK CAA for the offshore oil and gas industry. It was developed with input from helicopter operators, offshore installation managers, and aviation safety specialists over decades of North Sea operations.
The flag states adopted CAP 437 (or elements of it) and translated it into their yacht codes, often with modifications to accommodate the perceived differences between offshore platforms and yachts. The problem is that these modifications were made by maritime administrators and naval architects, not by aviation professionals. The result is a set of rules that sometimes miss critical aviation safety points or create requirements that make little practical sense from a pilot's perspective.
Maritime surveyors and flag state inspectors are qualified to assess the structural integrity of a helideck as part of the vessel. They can verify that the steel is the right grade, the deck load is adequate, and the firefighting equipment is in place. What they are typically not qualified to do is assess whether the obstacle environment is safe for the specific helicopter types that will use the deck, whether the approach and departure paths are operationally viable in varying wind and sea conditions, or whether the helideck lighting and markings are appropriate for the pilot workload.
The Aviation Inspection Bodies (AIBs) that conduct the actual HLAC inspections are intended to bridge this gap, but as noted elsewhere on this site, AIBs themselves hold maritime authorisation — not aviation authority approval. The entire regulatory chain, from flag state to AIB to training provider, is maritime in nature.
Maritime authorities should regulate maritime safety. Aviation authorities should regulate aviation safety. For helidecks — which sit at the intersection of both — there should be formal, documented involvement of the relevant civil aviation authority in the development and oversight of helideck standards. Yacht operators should not assume that a flag state-compliant helideck is automatically safe for aviation operations. Independent aviation input should be sought for any helideck design, modification, or operational assessment.
Flag state yacht codes typically require vessels with helidecks to maintain a helideck operations manual. This document is intended to cover pre-flight procedures, communications protocols, firefighting response, passenger handling, and emergency procedures specific to the vessel's helideck.
In offshore operations, the helideck operations manual is a critical document. It is part of the installation's safety management system, it is audited regularly, and it is used operationally by trained HLOs and HDAs who conduct multiple helicopter operations per week. The manual reflects real procedures that are practised, tested, and refined through experience.
On most yachts, the helideck operations manual is a document that was written (or purchased as a template) for the purpose of passing the HLAC inspection. It sits in a binder on the bridge. The crew may have read it once during their HLO training. It is updated annually — or more accurately, the date on the cover is changed annually — and it bears little relation to the actual procedures used during helicopter operations on board.
The reason is simple: most yachts conduct helicopter operations infrequently — perhaps 20 to 50 flights per year. The crew's primary roles are in deck operations, engineering, or hospitality. Helicopter operations are an occasional event, not a daily routine. In this context, a 60-page helideck operations manual modelled on an offshore installation's procedures is disproportionate and largely unused.
Instead of a template manual designed to satisfy an auditor, yachts would benefit from a short, practical document — no more than 10-15 pages — that covers:
This document should be written with input from the AOC holder's flight operations department and the vessel's HLO, and it should be reviewed and practised — not just filed.
A pilot briefing is one of the most important and most frequently neglected elements of yacht helicopter operations. Before any flight, there should be a formal exchange of information between the pilot and the vessel's HLO (and ideally the captain).
On many yachts, the pilot arrives, the passengers board, and the helicopter departs with minimal communication beyond a radio call for clearance. This is dangerous. Without a proper briefing, the HLO cannot prepare the helideck crew for the specific requirements of the operation, the captain cannot adjust the vessel's heading or speed to support the approach, and the pilot is operating with incomplete information about the deck environment.
A proper briefing takes 5-10 minutes. It should be standard practice for every flight, not just the first one of the season.
An increasing trend in the superyacht industry is the "dual-use" helideck — a helicopter landing area that doubles as a sports court (pickleball, basketball, padel) or entertainment space when the helicopter is not on board. The most prominent example is M/Y Wayfinder, the 68.2m ShadowCat catamaran support vessel built by Astilleros Armon in 2021, whose helideck is widely marketed as a pickleball court with a sky-blue floor, pickleball court lines, and an 'H' that lights up in neon green at night. Temporary netted walls are erected around the perimeter during games to prevent balls going overboard.
From a lifestyle perspective, this is understandable — a helideck is a large, flat, open area that sits unused most of the time. From an aviation safety perspective, it is a problem.
ICAO Annex 14, Volume II (Heliports), Chapter 5 specifies the visual aids required for a ship-based helideck. The following markings are mandatory:
When a helideck also functions as a pickleball court, basketball court, or any other recreational surface, the following ICAO compliance issues arise:
1. Conflicting markings. A pickleball court has its own set of lines — baseline, sidelines, non-volley zone (kitchen) lines, centreline. These lines are typically white or contrasting colours. When overlaid on a helideck, they create visual clutter that can confuse the pilot during approach, particularly in low visibility, at night, or when the pilot is unfamiliar with the vessel. The H marking must be the dominant visual feature on the helideck. If there are 15 additional lines on the deck from a sports court, the H and the TDM circle are no longer the dominant features — they become one set of markings among many.
2. Deck colour. Wayfinder's helideck is described as "sky-blue." ICAO and CAP 437 specify a dark, non-reflective surface colour (typically dark green — "helideck green" — RAL 6012 or equivalent). A sky-blue surface reduces contrast with white aviation markings, particularly in bright Mediterranean sunlight. It also increases glare, which degrades the pilot's visual reference during the critical final approach phase.
3. Neon green H. Wayfinder's H reportedly "lights up in neon green at night." ICAO specifies that the H marking should be white. Helideck perimeter lighting and floodlighting have specific colour and intensity requirements under ICAO Annex 14 Vol II Chapter 5 and CAP 437 Part 2. A neon green illuminated H is not a standard aviation marking — it is a decorative feature. Whether it assists or hinders the pilot at night depends on its intensity, colour rendering, and whether it complies with the photometric requirements of CAP 437.
4. Temporary equipment. The temporary netted walls erected for pickleball games must be completely removed before any helicopter operation. They constitute obstacles within the TLOF and the obstacle-free sector. If they are not removed — or if any supporting hardware (bases, posts, anchors) remains on the deck surface — this is a direct violation of the obstacle-free requirements and a physical hazard to the helicopter.
5. Surface condition. Sports activities on the helideck surface can degrade the friction coating. Helideck surfaces must meet minimum friction requirements (CAP 437 specifies a minimum friction coefficient of 0.65 when wet). Rubber soles, equipment, and repeated foot traffic may wear down the friction coating over time. The helideck surface should be tested for friction after periods of sports use.
The question that should be asked is: how does a helideck with pickleball court markings, a non-standard deck colour, and a neon green H receive an HLAC?
The answer is likely that the HLAC inspection assesses the helideck at the time of inspection — when the deck is presumably in "helicopter mode" (nets removed, no sports equipment). The AIB may note the non-standard markings but issue the certificate on the basis that the fundamental requirements (size, structural strength, firefighting, crew training) are met. The sports court markings are treated as an aesthetic issue rather than a safety issue.
This is where the gap between maritime oversight and aviation expertise becomes visible. A pilot looking at that deck from 500 feet on approach sees a confusing surface with multiple sets of lines, a non-standard colour, and a marking scheme that does not match what they were trained to expect. An AIB inspector standing on the deck sees a large, flat surface with an H on it. These are not the same assessment.
Wayfinder is not unique. The trend towards dual-use helidecks is growing as yacht designers seek to maximise usable space. Other vessels in the ShadowCat range and competing support vessel designs incorporate similar features. Any vessel where the helideck is routinely used for non-aviation purposes should be subject to enhanced scrutiny during HLAC inspections, with specific attention to: marking compliance after sports use, surface friction testing, obstacle-free sector verification, and the condition of the deck surface coating.
The short answer is: not as a formal regulatory category. There is no such thing as a "touch and go only" helideck certification under ICAO Annex 14 Vol II, CAP 437, or any flag state yacht code. A helideck is either certified for helicopter operations (with an HLAC) or it is not.
In fixed-wing aviation, a "touch and go" is a training manoeuvre where the aircraft lands on a runway and immediately takes off again without coming to a full stop. It is used for circuit training and practising landings.
In helicopter operations, the concept is different. A helicopter can perform a "hover-in, hover-out" or a "run-on landing and immediate departure" on a helideck. But the term "touch and go helideck" as used in the yacht industry is not an aviation term — it is a marketing term used to describe a landing area that is too small, too obstructed, or insufficiently equipped to allow the helicopter to land, shut down, and remain on deck.
Some yachts have a flat area on the foredeck or sun deck that is large enough for a helicopter to physically land on, but does not meet the full requirements for an HLAC-certified helideck. Rather than certifying the area (which would require meeting structural, firefighting, marking, crew training, and obstacle clearance requirements), the yacht presents it as a "touch and go" landing area — implying that the helicopter can land briefly to drop off or pick up passengers, then depart immediately.
This concept has no regulatory basis. From an aviation regulatory perspective:
A "touch and go" landing on an uncertified area is more dangerous than a normal landing on a certified helideck, not less. The pilot has less time to assess the deck, the crew may not be trained for helicopter operations, the firefighting equipment may not be available, and the obstacles may not have been assessed. If something goes wrong — an engine problem during lift-off, a gust of wind pushing the helicopter towards the superstructure, a passenger stumbling into the rotor arc — the consequences are the same as on any helideck, but the safety provisions are absent.
"Touch and go" is not a lower standard. It is no standard at all.
Some yacht operators argue that because their helicopter operation is "private" (not commercial), the helideck does not need to be certified, or can be certified to a lower standard. This is a misunderstanding of how the rules work.
Whether the helideck needs an HLAC depends on the flag state's requirements, not on whether the helicopter operation is private or commercial:
The common element is that the trigger for HLAC certification is the presence of a helideck on the vessel and the conduct of helicopter operations — not the commercial status of those operations.
The private/commercial distinction affects the aviation requirements (pilot licensing, AOC, maintenance standards) — not the helideck requirements. A private helicopter landing on an uncertified helideck is exposed to the same physical risks as a commercial helicopter. The structural load is the same. The fire risk is the same. The obstacle environment is the same. The need for trained crew is the same.
A yacht owner who operates a helicopter privately and argues that they do not need an HLAC is taking a position that may or may not be supported by their flag state code — but is certainly not supported by common sense or good safety practice.
Even where a flag state code technically does not require HLAC certification for a private helideck (and this is increasingly rare), the aviation insurance policy may require it. Many aviation insurers will not cover operations from an uncertified helideck, or will impose a premium loading or exclusion. Operating from an uncertified helideck without notifying the insurer is a material non-disclosure that can void the policy.
The position of the helideck on a yacht — forward or aft — has significant implications for safety, operational capability, and the types of operations that can be conducted. This is one of the most important decisions in yacht helideck design, and it is frequently driven by aesthetics and interior layout rather than aviation safety.
Pros:
Cons:
Pros:
Cons:
Both forward and aft helidecks can be certified and operated, provided they meet the requirements of ICAO Annex 14 Vol II and the applicable flag state code. The key limitations are:
If helicopter operations are a genuine priority (not an afterthought), the helideck should be positioned aft. Every major offshore helicopter operation in the world uses aft helidecks or helidecks with clear approach paths for exactly the reasons above. Forward helidecks are a design compromise that favours interior layout over aviation safety. They can work, but they work less well, with more limitations, and with higher risk than an aft helideck on the same vessel.
Naval architects and yacht designers should consult an aviation professional (not just the AIB) at the earliest stage of helideck design. The cost of repositioning a helideck on paper is negligible. The cost of repositioning it after the vessel is built is impossible.
Helicopter operations on yachts sit at the intersection of aviation and maritime regulation, in an environment where the consequences of error are fatal. The machinery is complex, the regulatory framework is fragmented across flag states and aviation authorities, and the operating environment — a moving vessel in a salt-laden maritime climate — is among the most demanding in aviation.
If you are a yacht owner, captain, or management company attempting to manage helicopter operations without genuine aviation expertise — without a credible AOC holder, without qualified aviation management oversight, without proper risk assessment by aviation professionals — then you are accepting a level of risk that no amount of insurance or flag state compliance paperwork will mitigate.
A helideck that passes its HLAC inspection is not necessarily safe. An insurance policy that is current does not mean you are covered if the basis of the policy is inaccurate. A pilot with a valid licence is not necessarily the right pilot for the operation. An AOC from a one-man-band is not the same as an AOC from a properly structured, professionally managed operator.
The cost of engaging real aviation expertise — a credible AOC holder with a proper management structure, independent aviation safety advice, qualified and current pilots with relevant experience — is a fraction of the value of the aircraft, a fraction of the value of the yacht, and a fraction of the liability exposure in the event of a serious incident.
If you are trying to do this yourself without a real expert, you will pay the price. That price may be financial — a voided insurance claim, a regulatory fine, an aircraft grounding. Or it may be measured in human life. The aviation industry learned decades ago that safety cannot be managed by amateurs. The yacht industry has yet to fully absorb that lesson.