Neometrix / Aircraft Oxygen & Life Support / Helicopter Oxygen System / NMX-HOX-40

NMX-HOX-40 · ENGINEERED & INDIGENISED TO ORDER — MI-17 CLASS · BOTTLES · REGULATORS · PORTABLE SETS

A fighter feeds one pilot. A helicopter feeds the cabin.

Name: Helicopter Oxygen System (Mi-17 Class)
Brand: Neometrix

A transport helicopter does not fly as high as a fighter, but it flies where the ground is high — mountain sectors where the air is thin even at helicopter heights. And it does not carry one pilot on positive pressure. It carries a whole cabin: crew, troops, and casualties on a medical run.

So the oxygen problem is a cabin problem. Onboard bottles store the supply, regulators meter it to the crew, outlets feed the passengers, portable sets free a crew member to move, and a casualty set keeps the wounded breathing. We indigenise, charge and integrate it; the airworthy cores come from specialists.

Discuss a system Capability note (PDF)

A set of high-pressure aviation oxygen bottles with their regulators and charging manifold laid out on a clean bench, silver and green cylinders with brass and steel fittings

Fig · 01 — The store and its regulators. High-pressure gaseous oxygen held in airworthy bottles; the regulator decides how much reaches the aircrew, and at what pressure.

The article

helicopter aircrew oxygenMi-17 1V / V5 class

The difference

the whole cabincrew + troops + casualties

The store

HP gaseous bottlescharged and proven on the ground

Our half

indigenise, charge, integrateairworthy cores bought-in

Status

engineered to ordersuccessive-quoted class

ISO 9001ISO 14001Oxygen-clean disciplineAltitude-schedule testIndigenisation & integration

Overview

Thin air, and a cabin full of people.

Two things make helicopter oxygen its own problem, separate from a fighter's.

A portable walk-around helicopter oxygen set: a small oxygen cylinder with a regulator, gauge and mask packed into a carry frame with a shoulder strap

Fig · 02 — A walk-around set. A small bottle, a regulator and a mask in a carry frame — oxygen that moves with a crew member down the cabin.

In the mountains a transport helicopter is a flying room full of people who all need to breathe — not a cockpit with one mask.

High ground, thin air

Oxygen is a matter of pressure, not just percentage. Over high mountain sectors the air is thin enough that crew judgement and vision start to fade on a long transit — the quiet danger of hypoxia, which arrives before anyone notices it. So the aircraft carries its own supply.

A fighter answers this for one pilot, under positive pressure, very high up. A transport helicopter answers it differently: lower, but for many people at once, for hours, on repeated sorties.

A cabin, not a cockpit

The flight crew need metered oxygen at their stations. Troops and passengers need a simpler continuous or economised flow at their seats. A crew member who has to move needs a portable set that goes with them. And on a medical evacuation, a casualty needs oxygen on the stretcher.

One aircraft, four different oxygen needs — all fed from the same onboard store, all charged and proven on the ground between flights. That is the system this page is about.

The honest two halves

We are plain about what is ours. The engineering, indigenisation, ground charging and test, and integration are ours to do — built on the oil-free, oxygen-clean, high-pressure-gas competence this company already has. The airworthy bottle and regulator cores are co-developed or bought-in from specialists. We do not blur the two.

StoredHP gaseous oxygen, onboard

Meteredcrew regulators, breath by breath

Sharedcabin outlets + portable sets

Chargedoil-free, oxygen-clean, tested

The system

From one bottle bank to the whole cabin.

Store it, meter it, share it, charge it. Each part is ordinary on its own; the life-support standard is in how they are engineered together.

FIG · 02HELICOPTER OXYGEN SYSTEM · STORE / CREW / CABIN / PORTABLE / CASUALTY / CHARGE — OURS vs BOUGHT-IN

The part outsiders underrate is the last box — charging. An oxygen system is only as safe as the cleanliness of the gas put into it, which is why the ground half is a life-support job, not a refill.

1 · Store

Airworthy high-pressure bottles hold the gaseous oxygen. They are the supply the whole cabin draws on, and the thing the ground charging system fills and proves between sorties.

2 · Meter (crew)

A regulator gives each crew member the right oxygen at the right pressure, breath by breath, and handles the switch to a portable or emergency supply. It is the precision heart of the system.

3 · Share (cabin)

Troops and passengers are fed by simpler continuous-flow or economiser outlets at their seats — enough oxygen, sized to the cabin and the sortie, without a full demand regulator each.

4 · Portable

A walk-around set — small bottle, regulator, mask, carry frame — lets a crew member leave their station and keep breathing while they work the cabin or the load.

5 · Casualty

A medevac oxygen set delivers oxygen to a casualty on the stretcher — the need that makes a transport helicopter's oxygen a cabin system rather than a cockpit one.

6 · Charge & prove

On the ground the bottles are charged oil-free and oxygen-clean, and the regulators and masks are proven against the altitude schedule before anyone trusts them in the air.

Work content

What the system contains, element by element.

Read the last column honestly: it marks what is ours to do and what is bought-in or co-developed.

An oil-free oxygen charging and test point: a high-pressure oxygen booster and manifold with clean stainless plumbing, gauges and charging hoses on a compact frame

Fig · 03 — The ground half. Oil-free charging and altitude-schedule test — the oxygen-clean discipline that is Neometrix's demonstrated competence.

Element	What it does	Ours / bought-in
Onboard oxygen bottles	store the high-pressure gaseous supply	airworthy core bought-in; install & integrate ours
Crew regulators	meter oxygen to the crew, breath by breath	precision internals bought-in; indigenise & qualify ours
Passenger / troop outlets	continuous-flow or economiser cabin oxygen	ours to engineer and integrate
Portable walk-around sets	oxygen that moves with a crew member	indigenise & assemble ours; core parts bought-in
Casualty / medevac set	oxygen for a stretcher casualty	ours to configure and integrate
Masks & hoses	deliver oxygen to the face, seal and comfort	specialist components bought-in
Distribution & manifolds	route oxygen from bottle to every point	ours to design and build
Ground charging system	fills the bottles oil-free and clean	Neometrix demonstrated build
Oxygen test set	proves regulators and masks to the altitude schedule	Neometrix build / indigenise
Cleanliness & safety	oxygen-clean assembly, compatible materials	ours — the discipline is the point
Documentation & training	operators run it; records survive audits	handed over with the system

The row that decides everything is the last-but-one: oxygen-clean discipline. A trace of oil in a high-pressure oxygen line is a fire waiting for a spark — which is exactly why the ground half sits naturally in a company built on oil-free, high-pressure-gas engineering.

Full specification — expand

System	Helicopter aircrew and cabin oxygen for Mi-17-class transport helicopters: onboard high-pressure gaseous oxygen bottles, crew regulators, passenger and troop outlets, portable walk-around sets, casualty oxygen, distribution, and ground charging and test — engineered, indigenised and integrated as one life-support system
The One Idea	A fighter feeds one pilot. A helicopter feeds the cabin. Crew, troops and casualties, across high mountain air, from one onboard store
Why Helicopters Need It	High-altitude mountain sectors leave the air thin even at helicopter heights; hypoxia arrives without warning on a long transit, and medical evacuation carries casualties who need oxygen — so crew and cabin both need a supply
The Store	Onboard high-pressure gaseous oxygen bottles, charged, replenished and proven on the ground between sorties — the supply the whole cabin draws on
Crew Oxygen	Regulators meter oxygen to the flight crew breath by breath and handle the switch to portable and emergency supplies — the precision heart of the airborne system
Cabin Oxygen	Continuous-flow and economiser outlets feed troops and passengers at their seats, sized to the cabin and the sortie — enough oxygen without a full demand regulator each
Portable & Casualty	Walk-around sets free a crew member to move through the cabin; a casualty / medevac oxygen set supplies a stretcher casualty — the needs that make helicopter oxygen a cabin problem
Ground Charging & Test	Oil-free, oxygen-clean charging and replenishment, and altitude-schedule test of regulators and masks — Neometrix's demonstrated high-pressure-gas competence, shared with the fixed-wing aircraft oxygen page
Honest Scope	Ours: engineering, indigenisation, ground charging and test, distribution, integration, documentation and training. Co-developed / bought-in: the airworthy bottle shells, the precision regulator internals and the specialist mask components, from their makers
Platform	Mi-17 1V / V5 class transport helicopters and similar rotary-wing platforms
Sensitive Boundaries	No customer, command, depot, order number or specification figure appears on this page; the platform is named because it is public, the equipment described at capability level only, and the page is built from Neometrix's own competence rather than any tender document
Status	Neometrix has quoted against successive helicopter aircrew oxygen requirements — Mi-17-class oxygen bottles and regulators, portable oxygen delivery sets and Mi-17 oxygen test equipment — offered as indigenisation, ground charging and integration, with the airworthy bottle and regulator cores co-developed or bought-in from specialists, and no delivered helicopter oxygen system is claimed.

Configurations

One store, four ways to breathe from it.

A helicopter fleet rarely wants the whole thing at once — it wants the part its mission needs.

Crew & cabin

The onboard system

Bottles, crew regulators and passenger outlets built into the aircraft — the fixed oxygen installation for crew and troops on a high transit.

Portable sets

Oxygen that moves

Walk-around bottles with regulator and mask in a carry frame — for a crew member working the cabin, and as a back-up to the fixed system.

Casualty / medevac

Oxygen on the stretcher

A configured casualty oxygen set for medical evacuation — the mission that turns a transport helicopter into a flying ambulance.

And underneath all three: the fleet supply of the bottles and regulators themselves, indigenised and charged — the current requirement this page answers, and the reason it exists as its own line.

Where it fits

Wherever a helicopter flies high or carries the hurt.

The demand base is the transport-helicopter fleet and the sectors it works.

Mi-17-class transport helicopters

The workhorse rotary-wing fleet — crew and troop oxygen for high transits, and the current bottles-and-regulators requirement this page is built around.

High-altitude mountain operations

Sectors where the ground itself is high and the air is thin — the case where even a helicopter's crew needs supplemental oxygen on a long leg.

Medical evacuation

Casualty oxygen on the stretcher, from the same onboard store — the mission that makes cabin oxygen, not just cockpit oxygen, essential.

Troop and passenger transport

Continuous-flow or economiser outlets for a cabin of people on a high crossing — simple, reliable, sized to the sortie.

Search and rescue

Crews working out of the aircraft with portable sets, and recovered persons who may need oxygen — a mix of fixed and walk-around supply.

Fleet indigenisation & support

Indigenised bottles, regulators and portable sets, plus the ground charging and test to keep them in service — the whole-of-life view a fleet actually buys.

The interior of a transport helicopter cabin fitted with oxygen distribution: seat-side oxygen outlets, a manifold along the cabin wall and a stowed portable oxygen set, no people present

Fig · 04 — The cabin, plumbed for oxygen. Seat outlets, a wall manifold and a stowed portable set — the whole room fed from one onboard store.

FAQ

Common questions.

Longer answers, for readers who want the reasoning.

Q · 01 Why does a helicopter need oxygen if it flies lower than a fighter?

Because what matters is not how high the aircraft is above the sea, but how thin the air is where it flies — and a transport helicopter working mountain sectors flies over ground that is already very high. Oxygen is about partial pressure: as you climb, the pressure of oxygen in each breath falls, and above a certain point the body cannot keep the blood saturated no matter how hard it breathes. Over high terrain a helicopter can spend a long leg at heights where crew judgement, colour vision and reaction time quietly degrade — the danger of hypoxia being precisely that it does not feel like anything; the person affected usually feels fine while getting worse. A fighter meets this by flying very high and giving one pilot oxygen under positive pressure. A transport helicopter meets a different version of it: not as high, but for a long time, and for many people at once — the crew flying the aircraft, the troops or passengers in the back, and any casualty being carried out. The altitude is lower; the number of lungs to look after is far higher. That is why helicopter oxygen is engineered as a cabin system, and why it is life-support, not comfort.

Q · 02 How is helicopter oxygen different from a fighter's oxygen system?

The physics is the same; the problem shape is different. A fighter's system is built around one aircrew station at extreme altitude under high g: a demand regulator that senses altitude and adds positive pressure, a single mask and helmet, and an on-board generator or stored supply feeding that one seat. A transport helicopter's system is built around a cabin: the flight crew each need metered oxygen, but the back of the aircraft holds troops, passengers or casualties who need a simpler, continuous or economised flow at many points, plus portable sets for people who move around. So the helicopter system spreads a stored supply across the whole aircraft through a distribution network, with different delivery devices for different occupants, rather than concentrating on one high-performance seat. It usually relies on stored high-pressure gaseous oxygen rather than an engine-fed generator, because the demand is intermittent and spread out. And it has to cope with people getting on and off, stretchers coming aboard, and equipment being reconfigured between a troop lift and a medical evacuation. It is a less extreme system than a fighter's at any single point, and a more distributed one across the whole aircraft — which is its own kind of engineering.

Q · 03 What exactly does Neometrix do, and what is bought-in?

We are deliberately clear about the line, because oxygen life-support is not a place for vague claims. What is ours: the engineering and indigenisation of the system, the distribution that carries oxygen from the bottles to every point in the cabin, the integration into the aircraft, and — the strongest part of our competence — the ground charging and test: filling the bottles oil-free and oxygen-clean, and proving the regulators and masks against the altitude schedule before flight. What is co-developed or bought-in: the airworthy bottle shells, the precision regulator internals and the specialist mask components, which come from established makers of those airworthy items. We do not claim to be the original manufacturer of a certified aviation oxygen bottle or the inventor of a demand-regulator movement; we claim to indigenise, integrate, charge and prove a helicopter oxygen system as a whole, and to take engineering responsibility for it. That honesty matters more here than anywhere, because the buyer is trusting the answer with aircrew lives — so the page states the division of work plainly, and the quotation would state it the same way.

Q · 04 Why does oxygen equipment have to be “oxygen-clean”?

Because high-pressure oxygen and any trace of hydrocarbon is a fire and explosion hazard, and aircrew oxygen is high-pressure oxygen. Oxygen itself does not burn, but it makes almost everything else burn far more readily and violently; at high pressure, a smear of oil or grease, or even a fingerprint, inside an oxygen line can ignite from the heat of rapid compression or a spark, and once it starts it can burn through metal. So every part of an oxygen system that touches the gas is engineered to a strict oxygen-clean standard: the charging compression is oil-free by design so no oil ever goes near the gas, every wetted component is degreased and cleaned to an oxygen-service standard, only compatible materials and lubricants are used, and assembly and test are done in clean conditions. This is not housekeeping — it is the difference between a safe system and a bomb bolted into an aircraft. It is also exactly the discipline behind our oil-free compressed-air and high-pressure-gas systems, which is why the charging and cleanliness half of helicopter oxygen sits naturally in our competence: we already build to oil-free, oxygen-clean, high-pressure standards, and that is the credible foundation we bring to the rest of the system.

Q · 05 What is a portable walk-around set, and why does it matter?

It is oxygen you can carry — a small high-pressure bottle with its own regulator, a gauge and a mask, packed into a frame with a strap, sized to give a person a defined number of minutes of oxygen away from the fixed system. On a transport helicopter it matters for two reasons. First, people move: a crew member may have to leave their oxygen station to work the cabin, manage the load, tend a casualty or reach a door, and they cannot do that on a hose tethered to a fixed outlet — the walk-around set goes with them. Second, it is a back-up: if the fixed supply to a station fails, or someone needs oxygen where there is no outlet, the portable set is the immediate answer, which is why aircraft carry several stowed at known points. A good walk-around set is light, rugged, quick to don, honest about how much oxygen is left, and unambiguous to use under stress — because it is used exactly when things are already going wrong. Indigenising and assembling these reliably, and keeping them charged and tested, is a real part of a fleet's oxygen problem, and part of what this page covers.

Q · 06 Has Neometrix delivered a helicopter oxygen system?

Neometrix has quoted against successive helicopter aircrew oxygen requirements — Mi-17-class oxygen bottles and regulators, portable oxygen delivery sets and Mi-17 oxygen test equipment — offered as indigenisation, ground charging and integration, with the airworthy bottle and regulator cores co-developed or bought-in from specialists, and no delivered helicopter oxygen system is claimed. We would rather say that plainly than dress it up. The record behind the sentence is a run of pursued requirements for exactly this equipment on the transport-helicopter fleet: the supply of oxygen bottles and regulators, portable helicopter oxygen delivery sets, and the oxygen test equipment that proves them — each answered as an indigenisation and integration offer. Around those bids stands the competence this whole site shows in depth: the fixed-wing aircraft oxygen system and its ground charging, the oil-free high-pressure-gas and oxygen-clean engineering, the mobile oxygen charging-and-distribution vehicle, and aircraft ground-support as the house trade. The honest shape of a first helicopter-oxygen contract is the one the requirements themselves define: indigenise and integrate the equipment, charge and prove it to a life-support standard, qualify it clause by clause, and support it in service — with the airworthy cores sourced from their specialist makers. That is the basis we would bid on, and the page claims nothing more.

Q · 07 How does this relate to your fixed-wing aircraft oxygen page?

As two halves of one competence, split honestly so neither page over-claims. The aircraft oxygen system page is about fixed-wing and fighter aircrew oxygen — the demand regulator and mask at extreme altitude under positive pressure — together with the ground charging system that serves every platform: the oil-free high-pressure oxygen booster, the charging trolleys, the mobile charging-and-distribution vehicle and the oxygen test facility. This page is about rotary-wing, transport-helicopter oxygen: the cabin system, the portable sets, the casualty oxygen, and the fleet supply of Mi-17-class bottles and regulators. The two share a spine — the same oil-free, oxygen-clean, high-pressure-gas discipline, and the same honest division between what we indigenise and integrate and what we buy in — but they answer different aircraft and different missions, so each carries its own claim and neither counts the other's requirements. The ground charging system on the fixed-wing page is, in fact, what fills a helicopter's bottles too; read the pages together and they describe one oxygen capability, deliberately kept in two honest halves rather than one blurred whole.

Q · 08 Can you supply just the bottles and regulators, not a whole system?

Yes — and that is often exactly what a fleet needs. A transport helicopter fleet already has its aircraft; what it repeatedly needs is the consumable and replaceable oxygen hardware kept indigenised, supplied and serviceable: the oxygen bottles that are charged, used and recharged over and over, the regulators that wear and must be overhauled or replaced, the portable sets that get used hard, and the masks and hoses. Supplying these as indigenised items — with the ground charging and the altitude-schedule test that keep them airworthy — is a distinct requirement from designing a new installation, and it is the current one this page is built around. Our role is the same as across the rest of the system: we indigenise, assemble, charge, test and support, and the airworthy cores are co-developed or bought-in from specialists. Whether a customer wants the whole cabin system engineered, or a steady indigenised supply of bottles and regulators for a fleet already flying, the honest scope and the honest sourcing are stated the same way — and the quotation follows the requirement, not the other way round.

The fixed wing, the charging, and the rescue air.

Three neighbours in the aircraft oxygen and life-support world.

↗ The fixed wing

Aircraft Oxygen System

The fighter & fixed-wing sibling — airborne delivery and the ground charging system that fills these bottles too.

↗ The charging

Oxygen Charging & Distribution Vehicle

The mobile flight-line charger — oil-free high-pressure oxygen brought to the aircraft.

↗ The rescue air

Breathing Air Systems & Rescue Sets

Life-support breathing gas in its other setting — the same clean, high-pressure-gas discipline.

Browse all Neometrix product lines.

Get a quotation

Tell us the fleet, the sectors,
and what the cabin must carry.

The projects 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 — helicopter oxygen Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED & INDIGENISED TO ORDER — HELICOPTER OXYGEN SYSTEM (MI-17 CLASS) STORE · METER · SHARE · PORTABLE · CASUALTY · CHARGE — A HELICOPTER FEEDS THE CABIN ENGINEERED IN NOIDA · INDIA

A fighter feeds one pilot. A helicopter feeds the cabin.

Thin air, and a cabin full of people.

High ground, thin air

A cabin, not a cockpit

The honest two halves

From one bottle bank to the whole cabin.

1 · Store

2 · Meter (crew)

3 · Share (cabin)

4 · Portable

5 · Casualty

6 · Charge & prove

What the system contains, element by element.

One store, four ways to breathe from it.

The onboard system

Oxygen that moves

Oxygen on the stretcher

Wherever a helicopter flies high or carries the hurt.

Mi-17-class transport helicopters

High-altitude mountain operations

Medical evacuation

Troop and passenger transport

Search and rescue

Fleet indigenisation & support

Common questions.

The fixed wing, the charging, and the rescue air.

Aircraft Oxygen System

Oxygen Charging & Distribution Vehicle

Breathing Air Systems & Rescue Sets

Tell us the fleet, the sectors,
and what the cabin must carry.

Similar Products

Share This Page

A fighter feeds one pilot. A helicopter feeds the cabin.

Thin air, and a cabin full of people.

High ground, thin air

A cabin, not a cockpit

The honest two halves

From one bottle bank to the whole cabin.

1 · Store

2 · Meter (crew)

3 · Share (cabin)

4 · Portable

5 · Casualty

6 · Charge & prove

What the system contains, element by element.

One store, four ways to breathe from it.

The onboard system

Oxygen that moves

Oxygen on the stretcher

Wherever a helicopter flies high or carries the hurt.

Mi-17-class transport helicopters

High-altitude mountain operations

Medical evacuation

Troop and passenger transport

Search and rescue

Fleet indigenisation & support

Common questions.

The fixed wing, the charging, and the rescue air.

Aircraft Oxygen System

Oxygen Charging & Distribution Vehicle

Breathing Air Systems & Rescue Sets

Tell us the fleet, the sectors,and what the cabin must carry.

Similar Products

Share This Page

Tell us the fleet, the sectors,
and what the cabin must carry.