NMX‑HTS‑30 / Rev 00 / naval aviation deck / traversing · handling 2026 · Product Page

NMX-HTS-30 · ENGINEERED TO ORDER — SHIPBOARD HELICOPTER TRAVERSING & HANDLING SYSTEM

Secure the helicopter. Walk it home.

Name: Shipboard Helicopter Traversing & Handling System
Brand: Neometrix

A naval helicopter’s hardest ordinary moment is the deck: rolling, pitching, wet, with wind curling over the hangar face. After touchdown a multi-ton aircraft on wheels stands on a moving steel floor — one uncontrolled metre from disaster. The handling system enforces one rule: the aircraft is never free. At touchdown its deck-lock probe engages a securing grid set flush in the deck — clamped to the ship in seconds. A shuttle in flush deck rails then captures the aircraft’s deck fitting, and a winch or hydraulic drive walks it to the hangar at walking pace, restrained the whole way, centred through the door’s tight clearances — then chocked and lashed at stowage. Around it, NVG-compatible deck lighting for night operations. We build the rails, shuttle, drive, grid and lighting, install on board and prove it in trials — and overhaul in-service systems. Quoted across exactly those requirements; no delivered system is claimed.

Enquire — helo traversing system Capability sheet (PDF)

Illustrative image, not a delivered installation — the flight deck of a generic grey warship looking toward an open hangar: flush traversing rails running from a landing circle with a heavy perforated securing grid set into the deck, a low grey shuttle trolley parked on the rails, rows of tie-down points, no aircraft, no markings and no people

Fig · 01 The deck outfit — securing grid at the landing spot, flush rails to the hangar, and the shuttle that owns the aircraft in between — illustrative, not a delivered installation

Secures

on touchdownprobe into the grid

Traverses

under restraintrails, shuttle, drive

Deck

always movingroll, pitch, wet

Sees

at nightNVG-compatible aids

Built

to ordernew-build + overhaul

ISO 9001 / 14001 Engineered to order Naval aviation deck equipment Installed & sea-trialled Noida · India

Overview

The deck never stops.

Everything about shipboard helicopter operation is decided by one fact: the landing spot moves. The ship rolls and pitches beneath the aircraft, heaves with the swell, and the deck itself is often wet with spray or rain. A helicopter is superb in the air and helpless on wheels: once shut down on a moving deck it can neither fly away from trouble nor hold itself still against it. Navies learned the lesson the hard way — an aircraft that rolls one free metre on a moving deck is a casualty: aircrew, deck crew, and a machine the ship cannot replace at sea. The traversing and handling system exists to make that metre impossible.

Illustrative image, not a delivered installation — close detail of a helicopter traversing shuttle on its flush deck rails: a low wide grey steel trolley with a central capture receptacle, guide rollers engaged in the rail slots, hydraulic hoses in a loom and a tow attachment point, wet deck around, no text and no people

Fig · 02 The shuttle — a low trolley in flush rails whose capture mechanism takes the aircraft’s deck fitting: from here on, the machine owns the aircraft — illustrative, not a delivered installation

Seconds after touchdown, the ship takes hold. Set flush in the landing area is a heavy perforated securing grid. As the aircraft settles, its deck-lock probe drives into the grid and clamps — within seconds, before the pilot relaxes the controls, the helicopter is structurally part of the ship. Deck crew add tie-down lashings to the surrounding pattern, and the most dangerous moment of the recovery is already over.

Then the machine walks it home. A shuttle — a low traversing trolley running in flush deck rails — comes to the aircraft and captures its deck fitting. From that moment the aircraft’s own wheels and brakes are passengers: a winch or hydraulic drive moves the shuttle at a controlled walking pace, holding the aircraft against roll and pitch, while the rail and guide geometry keep it centred through the hangar door — clearances there are measured in centimetres. Inside, the aircraft is positioned over its stowage, chocked, and lashed. For launch, the sequence runs in reverse, ending with the grid releasing the probe as the rotors take the weight.

And the night belongs to the lighting. Recoveries do not wait for daylight. The deck’s visual aids — NVG-compatible deck and landing lighting, hangar-face aids — are engineered as part of the same outfit, matched to the procedures the crews fly. It is the member of the family our quoted deck-lighting work speaks for directly.

The system is judged on the recovery nobody talks about afterwards: a dark deck, a real sea running, and an aircraft that went from touchdown to lashed in the hangar without one moment in which anything could have gone anywhere.

The Deck Never Stops

The aircraft cannot hold itself

Roll, pitch, heave and wet steel — a shut-down helicopter on wheels is helpless, and one free metre is a casualty. The machine exists to make that metre impossible.

Never Free, End To End

Grid, shuttle, lashings

Clamped at touchdown by the securing grid, owned by the shuttle through the traverse, lashed at stowage — restraint hands the aircraft from one system to the next with no gap.

New-Build And Overhaul

A quoted, recurring demand

Traversing systems live hard lives at sea: the navy’s repair rate-contracts for helo traversing systems — work we have quoted — are the recurring aftermarket beside the new-build.

Architecture

Grid, shuttle, drive.

The schematic follows a recovery — touchdown, secure, traverse, hangared — and shows the machine that runs it: the rails and grid in the deck, the shuttle that captures the aircraft, the drive and controls that walk it, and the lighting that owns the night.

FIG · 03HTS ARCHITECTURE · RAILS & GRID / SHUTTLE / DRIVE & CONTROL · NVG-COMPATIBLE LIGHTING & AIDS

Fig · 03 Clamp the aircraft at touchdown, capture it with the shuttle, and walk it to stowage under restraint — on rails set flush in a deck that never stops moving

Arc · 01

Rails & Securing Grid

Flush deck tracks from the landing spot to the hangar stowage, structurally seated into the deck — and the heavy grid plate the aircraft’s deck-lock probe clamps into at touchdown.

Arc · 02

The Shuttle

A low traversing trolley whose capture mechanism takes the aircraft’s deck fitting — rollers and guides engaging the rails, built to the specified aircraft interface.

Arc · 03

Drive & Control

Winch or hydraulic drive at controlled walking pace with holding and overload protection — deck and hangar pendants, travel limits, interlocks and emergency stops.

Arc · 04

Lighting & Visual Aids

NVG-compatible deck and landing lighting and hangar-face aids — the night-operations member of the outfit, engineered and installed with the machinery.

Have a helo-traversing, deck-handling or deck-lighting requirement? Send the deck, the hangar and the aircraft interface — a clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference outfit, built to the deck.

The parameters below describe a reference installation. The rail run, the shuttle capture interface, the drive rating, the grid position and the lighting fit all follow from the ship — its deck and hangar geometry, the specified aircraft interface, and the sea states the operator works in.

Illustrative image, not a delivered installation — inside a warship hangar looking out through the open door to the flight deck: traversing rails continuing across the sill, a control pedestal with a blank panel and emergency stop by the door frame, lashing rings in the floor and the grey deck and sea beyond, no aircraft and no people

Fig · 04 Through the door — the rails cross the sill into the hangar, where clearances are tightest and the control station stands watch — illustrative, not a delivered installation

Where deck handling goes wrong

In the handovers and the geometry, not the winch. A gap between the grid releasing and the shuttle holding is a gap in restraint — and restraint gaps are where aircraft move; a capture mechanism that does not truly match the aircraft’s deck fitting works loose exactly when loads peak; rails set proud, or a sill that steps, snag wheels at the hangar door where clearance is least; a drive without holding and overload protection turns a pitch cycle into a runaway; and lighting that blinds night-vision devices costs the crew the recovery.

So the sequence is engineered with no restraint gap — grid, shuttle and lashings overlap their custody; the capture is built and proven to the specified interface; rails and sill are machined flush and aligned through the door; the drive holds under power loss and slips under overload; the lighting meets the NVG-compatibility the procedures demand; and the whole outfit is proven in harbour and sea trials before the first operational recovery.

Full specification — expand

System	Shipboard helicopter traversing & handling system — securing grid, flush deck rails, capture shuttle, drive & controls, lashing outfit and deck lighting; engineered, installed, trialled & certified
Function	Secures the aircraft at touchdown and traverses it deck-to-hangar (and back) restrained end to end — never free on a moving deck
Securing Grid	Heavy perforated grid plate flush in the landing area — engaged by the aircraft’s deck-lock probe within seconds; tie-down pattern around it
Rails	Flush deck tracks landing-spot to hangar stowage — structurally seated, machined flush at the sill, aligned through the door clearances
Shuttle	Low traversing trolley with capture mechanism to the specified aircraft deck fitting; rollers & guides in the rail slots
Drive & Control	Winch or hydraulic drive, controlled walking pace; holding on power loss, overload protection; deck & hangar pendants, travel limits, interlocks, e-stops
Lashing Outfit	Tie-down points, chocks and lashings to the deck and hangar pattern — custody overlapping the grid and shuttle so restraint never lapses
Lighting & Aids	NVG-compatible deck & landing lighting, hangar-face visual aids — the night-operations member of the outfit
Forms	Rail traversing systems (frigate / destroyer-class) · portable / wheel-guided handlers (small decks, retrofit) · grid & lashing outfits · overhaul & refit of in-service systems
Sourcing	Standard winch units, bearings & rollers, specialist NVG-compatible light fittings and the aircraft’s own deck fittings are bought-in or customer-furnished; Neometrix builds the rails & structure, shuttle & capture, drive & controls, grid & lashing outfit, lighting installation, installs, trials & certifies
Status	Engineered to order · sized to the deck, hangar & specified aircraft interface · quoted across helo-traversing overhaul & helicopter-deck lighting requirements · no specific delivered system is claimed on this page

PDF · 1 page

Shipboard Helicopter Traversing & Handling — Capability Sheet

Tender Response

Send your deck, hangar & aircraft interface — compliance matrix in two working days

Variants

One rule, the outfit the ship needs.

Requirements call it a helo traversing system, a portable handling system, a securing grid, or deck lighting. The rule — the aircraft is never free — is common; the outfit follows the deck, the hangar and the aircraft interface.

Var · 01

Rail Traversing System

The full deck-to-hangar outfit — flush rails, shuttle, drive and controls — for frigate and destroyer-class flight decks.

Var · 02

Portable / Wheel-Guided Handlers

Portable handling systems for small decks and retrofit — captive movement of the aircraft without a full rail installation.

Var · 03

Securing Grid & Lashing Outfit

The grid plate, tie-down points, chocks and lashings — the touchdown-securing member, supplied and installed as its own package.

Var · 04

NVG-Compatible Deck Lighting & Aids

Deck and landing lighting and hangar-face visual aids for night operations — the quoted lighting member of the same outfit.

Applications

Where it brings them home.

Wherever a helicopter must live with a ship — and the deck will not hold still for it.

A · 01Frigate & destroyer-class flight decks

A · 02Small-deck & retrofit handling

A · 03Hangar traverse & stowage

A · 04Securing grids & lashing outfits

A · 05Deck lighting & night operations

A · 06Overhaul & refit of in-service systems

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 Why is moving a helicopter on a ship a machine problem?

Because the two things a helicopter does well — fly, and sit parked on solid ground — are both unavailable on a flight deck. Once shut down, a helicopter is a multi-ton vehicle on small wheels with a high centre of gravity, standing on steel that rolls, pitches and heaves, often wet, always with wind working around the superstructure. Brakes and chocks that are perfectly adequate ashore are not a survival plan at sea: a deck angle that would be unremarkable for a truck is enough to start an unrestrained aircraft moving, and once moving it cannot be stopped by hand. The consequences are not dents — they are injured deck crew and an aircraft the ship cannot repair or replace on deployment. Every navy therefore treats deck handling as a machinery problem with a single rule: the aircraft is never free. From the second the deck-lock probe meets the securing grid at touchdown, through the shuttle’s captive traverse, to the lashings at stowage, custody of the aircraft passes from one restraint system to the next with no gap — and the machine, not the weather, decides when and how the aircraft moves.

Q · 02 How does securing at touchdown work?

Through the securing grid — the deck-side half of a two-part handshake. Set flush into the landing area is a heavy steel grid plate: a field of closely-spaced holes, each a possible locking point. The aircraft carries the other half — a deck-lock probe beneath its fuselage (the aircraft’s own equipment, furnished with it). Within seconds of touchdown, the probe drives down into whichever grid hole lies beneath it and locks — and from that instant the helicopter is structurally attached to the ship, able to take the deck’s motion through a designed load path rather than through its tyres and brakes. The grid’s virtue is that it demands no precision from the landing: any touchdown within the grid’s field is a securable touchdown. Deck crew then add tie-down lashings to the surrounding pattern as the layered, redundant restraint. Our scope is the deck side: the grid plate and its structural seat in the deck, the tie-down pattern, and the integration with the rails that will take the aircraft home — engineered to the operator’s specified aircraft interface.

Q · 03 How does the traverse to the hangar actually happen?

On rails, behind a shuttle, at walking pace. Running from the landing area into the hangar are flush deck rails — tracks set into the deck structure, machined level with the plating so they present nothing to wheels, boots or rotor wash. In them runs the shuttle: a low, wide trolley whose capture mechanism takes hold of the aircraft’s deck fitting. Once captured, the aircraft’s own wheels merely roll; they no longer decide anything. A winch or hydraulic drive moves the shuttle at a controlled walking pace — fast enough to clear the deck promptly, slow enough that nothing dynamic ever develops — with the drive engineered to hold position on power loss and to slip before it overloads the aircraft’s fitting. The most delicate metres are at the hangar door, where clearance between rotor head, tail and structure is tightest: there the rail and guide geometry does the steering, keeping the aircraft centred through the sill regardless of what the ship is doing. Inside, the aircraft is walked to its stowage position, chocked and lashed — and for a launch the whole sequence runs in reverse, ending with the grid releasing the probe as the rotors take the weight.

Q · 04 What about ships without a full rail system?

They use the portable and wheel-guided handlers — the same rule, delivered without permanent rails. On smaller decks, on ships where the hangar geometry does not suit a straight rail run, or as a retrofit where cutting rails into an existing deck is not practical, the aircraft is moved by a handling system that comes to it: a powered handler that couples to the aircraft’s deck fitting or landing gear, holds it captive, and manoeuvres it under power with the same walking-pace discipline, the same holding and overload protection, and the same never-free custody between the securing points at either end of the move. The navy’s own requirement language reflects this form — the portable helo traversing system of the tenders — and it is engineered case-by-case to the deck, the aircraft interface and the stowage geometry. On the smallest decks the same engineering shrinks again into a grid-and-lashing outfit with powered assistance only where the geometry demands it. The principle never changes; only how much of it is built into the ship, and how much rolls out of the hangar on wheels.

Q · 05 Why does the deck lighting belong to the same outfit?

Because recoveries happen at night, and at night the deck’s visual environment is part of the machinery. Crews flying with night-vision devices are blinded by ordinary lighting: a single wrongly-specified fitting on the hangar face can wash out a pilot’s devices exactly at the moment of highest workload. So the deck and landing lighting, the hangar-face aids and the working lights the handling crew use are specified NVG-compatible — emitting where the devices tolerate, controlled and dimmable to the operator’s night procedures — and they are engineered, installed and proven together with the handling machinery, because they serve the same evolution: the aircraft found, landed, secured and walked home in the dark. This is also where our quoted work speaks most directly: the NVG-compatible helicopter deck lighting and landing package of the shipyard tender is precisely this member of the outfit, and we offer it both within a full traversing system and as its own installation on an existing deck.

Q · 06 What do you build, and what is bought-in?

The split runs along the familiar line of our naval machinery. What Neometrix builds is the deck-side machine: the flush rails and their structural seats, machined level at the sill and aligned through the door; the shuttle with its capture mechanism engineered and proven to the operator’s specified aircraft interface; the drive — winch or hydraulic — with its holding, overload protection, pendants, limits and interlocks (the same engineering as our marine deck machinery and steering-gear lines); the securing grid plate and its deck integration, with the tie-down and lashing outfit; the NVG-compatible lighting and visual-aids installation; and the shipboard installation, harbour and sea trials and certification — plus the overhaul and refit of in-service traversing systems, the recurring rate-contract work we have quoted. What is bought-in or customer-furnished: standard winch units and wire rope where specified, bearings and rollers, the specialist NVG-compatible light fittings, and — always — the aircraft’s own deck fittings: the probe and airframe hardware belong to the helicopter, which is the customer’s and stays generic on this page. Engineered to order; no specific delivered traversing system is claimed.

↗

The naval line from Neometrix.

The deck machinery that shares its winches, the helicopter-support sibling, and the naval machinery line this completes — engineered at our Noida facility.

↗ Deck Machinery

Marine & Naval Hydraulic Deck Equipment

Winches, hydraulics and deck structures — the engineering beneath the traversing drive.

↗ Helicopter Support

Helicopter Washing Rig

The helicopter-support sibling — caring for the aircraft the deck brings home.

↗ Naval Line

Naval Steering Gear & Rudder System

The naval machinery line this joins — steering, shafting, access, deck and now the aircraft.

Browse all Neometrix product lines.

Get a quotation

Send the deck
and the aircraft interface.

The defence programmes desk replies within two working days with a clause-by-clause compliance matrix and a budgetary quotation. Write to [email protected] or use the form.

Enquire — helo traversing system Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — SHIPBOARD HELICOPTER TRAVERSING & HANDLING SYSTEM SECURING GRID · FLUSH RAILS · CAPTURE SHUTTLE · WALK-SPEED DRIVE · NVG-COMPATIBLE LIGHTING · NEW-BUILD & OVERHAUL ENGINEERED IN NOIDA · INDIA

Secure the helicopter. Walk it home.

The deck never stops.

The aircraft cannot hold itself

Grid, shuttle, lashings

A quoted, recurring demand

Grid, shuttle, drive.

Rails & Securing Grid

The Shuttle

Drive & Control

Lighting & Visual Aids

Reference outfit, built to the deck.

Where deck handling goes wrong

One rule, the outfit the ship needs.

Rail Traversing System

Portable / Wheel-Guided Handlers

Securing Grid & Lashing Outfit

NVG-Compatible Deck Lighting & Aids

Where it brings them home.

Common questions.

The naval line from Neometrix.

Marine & Naval Hydraulic Deck Equipment

Helicopter Washing Rig

Naval Steering Gear & Rudder System

Send the deck
and the aircraft interface.

Similar Products

Share This Page

Secure the helicopter. Walk it home.

The deck never stops.

The aircraft cannot hold itself

Grid, shuttle, lashings

A quoted, recurring demand

Grid, shuttle, drive.

Rails & Securing Grid

The Shuttle

Drive & Control

Lighting & Visual Aids

Reference outfit, built to the deck.

Where deck handling goes wrong

One rule, the outfit the ship needs.

Rail Traversing System

Portable / Wheel-Guided Handlers

Securing Grid & Lashing Outfit

NVG-Compatible Deck Lighting & Aids

Where it brings them home.

Common questions.

The naval line from Neometrix.

Marine & Naval Hydraulic Deck Equipment

Helicopter Washing Rig

Naval Steering Gear & Rudder System

Send the deckand the aircraft interface.

Similar Products

Share This Page

Send the deck
and the aircraft interface.