NMX‑AOX‑30 / Rev 00 / aircrew life-support / oil-free · oxygen-clean 2026 · Product Page

NMX-AOX-30 · ENGINEERED TO ORDER — AIRCRAFT OXYGEN SYSTEM

Keep the aircrew breathing.

Name: Aircraft Oxygen System
Brand: Neometrix

The system that keeps aircrew breathing, from the ground to the mask. Above ~10,000 ft there is not enough oxygen to breathe, and fighter aircrew fly far higher — so every combat aircraft carries a life-support oxygen system. It has two halves, and we address both honestly. On the ground, we build the system that charges, distributes and tests the oxygen: the oil-free high-pressure booster, the charging trolleys, the mobile charging-and-distribution vehicle, and the oxygen test facility — our demonstrated competence. In the air, the demand regulator and aircrew mask that deliver it are offered as indigenisation and integration. Everything is oil-free and oxygen-clean, because high-pressure oxygen and any oil is a fire hazard. Engineered to order — ground system built, airborne delivery indigenised; no specific delivered system is claimed.

Enquire — aircraft oxygen system Capability sheet (PDF)

Illustrative image, not a delivered installation — a mobile oxygen charging and distribution vehicle on an airfield apron: a trailer carrying a bank of tall high-pressure oxygen cylinders, an oil-free booster and a charging control panel with coiled charging hoses, a plain unmarked grey aircraft blurred in the background, no text and no people

Fig · 01 A mobile oxygen charging-and-distribution vehicle at the flight line — the ground system we build — illustrative, not a delivered installation

Mission

life supportaircrew breathe at altitude

Ground

charge · boostHP oxygen, oil-free

Airborne

deliverregulator + mask, at pressure

Test

verifyregulators + masks

Sourcing

honest splitground built, airborne indigenised

ISO 9001 / 14001 Engineered to order Aircraft GSE & HP gas Oil-free · oxygen-clean Noida · India

Overview

Above the altitude you can breathe.

At sea level the air is about a fifth oxygen and that is enough. Climb, and the pressure falls until — above roughly 10,000 ft — there is no longer enough oxygen in each breath, and judgement, vision and consciousness go, often without warning. Fighter aircrew routinely fly to 40,000 ft and beyond, where they need not just extra oxygen but oxygen delivered under positive pressure to force it into the lungs. The aircraft oxygen system is the life-support equipment that makes that possible — and because a failure is fatal, it is charged, delivered and tested to a discipline all of its own.

Illustrative image, not a delivered installation — an oil-free high-pressure oxygen booster and charging panel: a clean oil-free booster with a charging control panel of pressure gauges and valves, a bank of high-pressure oxygen cylinders and coiled charging hoses, matte grey and spotless, no text and no people

Fig · 02 The oil-free high-pressure oxygen booster and charging panel — charge to the aircraft’s rated pressure, oxygen-clean — illustrative, not a delivered installation

On the ground: charge it, and charge it clean. The aircraft’s oxygen has to be put aboard and kept ready, and that is a ground job we build: an oil-free high-pressure booster compresses oxygen to the aircraft’s charging pressure (typically ~150–200 bar), charging trolleys and a mobile charging-and-distribution vehicle take it to the flight line, and everything is scrupulously oil-free and oxygen-clean — because high-pressure oxygen in contact with any hydrocarbon can ignite violently.

In the air: deliver it, at the right pressure. Airborne, the stored or generated oxygen passes through a demand / pressure regulator — the precision heart of the system — which senses altitude and delivers oxygen to the aircrew mask at the correct flow and pressure, adding oxygen as the aircraft climbs and switching to positive pressure-breathing up high. This airborne delivery is where we work as an indigenisation and integration partner.

The honest split. We are clear about what is ours and what is indigenised. The ground oxygen system — the booster, the charging trolleys, the charging-and-distribution vehicle, the test facility — is our demonstrated build, on our high-pressure-gas and aircraft-GSE competence. The airborne regulator and mask are offered as indigenisation and integration, with the precision regulator internals and specialist mask components co-developed or bought-in.

The ground system that charges and tests the oxygen is squarely ours — we build it. The airborne regulator and mask are a precision indigenisation job. Saying exactly which is which is the difference between an honest offer and an overclaim.

Life Support, No Second Chances

Breathe, or black out

Above ~10,000 ft there is not enough oxygen to stay conscious, and fighter aircrew fly far higher on positive-pressure oxygen. The aircraft oxygen system is life-support — charged, delivered and tested to its own strict discipline.

Two Systems: Ground and Air

Charge it, then deliver it

On the ground, the oil-free booster, charging trolleys and mobile charging vehicle put the oxygen aboard; in the air, the demand regulator and mask deliver it to the aircrew at the right pressure. Both have to work.

What We Build, What We Indigenise

An honest split

The ground system (booster, charging, distribution, test) is our demonstrated build; the airborne regulator and mask are indigenisation and integration, with precision internals specialist. We say which is which.

Architecture

Charge, deliver, test.

The schematic shows the airborne chain — source, regulator, mask — and the two systems that support it: the ground kit we build, and the airborne kit we indigenise. The detail panel covers the split and the oxygen-clean discipline.

FIG · 03AOX ARCHITECTURE · CHARGE / DELIVER / TEST · GROUND SYSTEM + AIRBORNE DELIVERY · OIL-FREE + OXYGEN-CLEAN

Fig · 03 The airborne chain — source, demand regulator, aircrew mask — supported by the ground charging-and-test system we build and the airborne delivery we indigenise

Arc · 01

The Ground Oxygen System

The oil-free high-pressure booster, the charging trolleys and the mobile charging-and-distribution vehicle that put oxygen aboard the aircraft at the flight line — our demonstrated build.

Arc · 02

The Airborne Delivery

The source (charged cylinders, LOX or OBOGS), the demand / pressure regulator and the aircrew mask that deliver oxygen at the right flow and pressure — offered as indigenisation and integration.

Arc · 03

Oxygen-Clean & Oil-Free

The safety discipline: high-pressure oxygen and any hydrocarbon can ignite, so every wetted part is oil-free, degreased and oxygen-clean, and the compression is oil-free by design.

Arc · 04

Test, Indigenise & Integrate

The oxygen test facility that verifies regulators and masks before flight, and the indigenisation and integration of the airborne delivery — the engineering that ties the two systems together.

Have an aircraft oxygen, aircrew oxygen or oxygen-charging requirement? Send the aircraft class and the scope — a clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference system, built to the aircraft.

The parameters below describe a reference system. The charging pressure, the booster capacity, the regulator and the test facility all follow from the aircraft, its oxygen source (charged cylinders, LOX or OBOGS), the aircrew and the flight envelope.

Illustrative image, not a delivered installation — a generic aircrew oxygen mask and a demand regulator connected by hoses to an oxygen test bench with flow and pressure gauges, on a clean laboratory bench, matte grey and unmarked, no text and no people

Fig · 04 The airborne delivery on test — a demand regulator and mask verified for flow and pressure across the altitude schedule — illustrative, not a delivered installation

Where an oxygen system is unforgiving

In cleanliness, pressure and the regulator, not the plumbing. A trace of oil or grease in a high-pressure oxygen line can ignite it; a booster or regulator that is not oxygen-clean is a hazard, not just a fault. A regulator that mis-schedules flow or pressure with altitude starves the aircrew of oxygen at exactly the wrong moment; and a system that is not tested before flight is trusting a life-support device it has not proven.

That is why everything is oil-free and oxygen-clean end to end, the charging is to the aircraft’s rated pressure, the regulator is schedule-verified against altitude, and the regulators and masks are tested on a dedicated facility before flight. The measure of an oxygen system is that the aircrew never have to think about it.

Full specification — expand

System	Aircraft oxygen system — ground charging, boosting, distribution & test (built) + airborne delivery (indigenised & integrated): booster, charging trolleys, mobile charging & distribution vehicle, oxygen test facility, regulator & mask
The Split	GROUND system = Neometrix demonstrated build; AIRBORNE delivery = indigenisation & integration — stated explicitly
Ground: Charging	Oil-free high-pressure oxygen booster; charge to the aircraft’s rated pressure (typ. ~150–200 bar); charging trolleys, hoses, adapters & ground regulators
Ground: Distribution	Mobile oxygen charging & distribution vehicle for the flight line; self-contained, oxygen-clean
Ground: Test	Oxygen test facility / test set to verify regulators & masks (flow, pressure, altitude schedule) before flight
Airborne: Source	Charged gaseous oxygen cylinders, liquid-oxygen (LOX) converter, or on-board oxygen generation (OBOGS, molecular sieve from bleed air)
Airborne: Delivery	Demand / pressure regulator (altitude-scheduled flow & positive-pressure breathing) + aircrew mask — indigenised & integrated
Cleanliness	Oil-free compression; degreased, oxygen-clean wetted parts end to end (high-pressure oxygen + hydrocarbon = fire hazard)
Sourcing	The ground system is Neometrix’s demonstrated build; the airborne regulator & mask are indigenised & integrated, with the precision regulator internals, mask/helmet components & any OBOGS sieve beds specialist / bought-in
Status	Engineered to order · ground system built, airborne delivery indigenised · quoted across aircraft & aircrew oxygen requirements · no specific delivered system is claimed on this page

PDF · 1 page

Aircraft Oxygen System — Capability Sheet

Tender Response

Send your aircraft class & scope — compliance matrix in two working days

Variants

One system, ground to mask.

Tenders call it an aircraft oxygen system, an oxygen charging system, an oxygen regulator or a helicopter oxygen delivery system. The principle — charge it, deliver it, test it, to a life-support standard — is common; the scope is configured to the aircraft and the customer.

Var · 01

Oxygen Charging & Booster Plant

The oil-free high-pressure booster and charging trolleys that put oxygen aboard the aircraft, oxygen-clean — the ground charging core.

Var · 02

Mobile Oxygen Charging & Distribution Vehicle

A self-contained flight-line vehicle that carries, boosts and distributes oxygen to the aircraft on the apron — our demonstrated GSE build.

Var · 03

Aircrew Oxygen Delivery — Regulator & Mask

The demand / pressure regulator and aircrew mask that deliver oxygen at altitude — offered as indigenisation and integration.

Var · 04

Portable / Helicopter Oxygen + Test Facility

Portable and helicopter oxygen delivery sets, and the oxygen test facility that verifies regulators and masks before flight.

Applications

Where it keeps them breathing.

Wherever aircrew fly high enough to need oxygen — and wherever it has to be charged, delivered and proven.

A · 01Fighter aircrew oxygen — charging & delivery

A · 02Helicopter crew & passenger oxygen

A · 03Combat free-fall / para oxygen recharge

A · 04Flight-line ground oxygen charging & distribution

A · 05Oxygen-equipment repair, overhaul & test

A · 06High-flow gaseous oxygen ground supply

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 Why does an aircraft need an oxygen system?

Because you cannot breathe at the altitudes aircraft fly. Air is about 21% oxygen, but what matters is its partial pressure, and as you climb the pressure falls until there is too little oxygen in each breath to keep you conscious. Above roughly 10,000 ft aircrew need supplemental oxygen; higher still, breathing pure oxygen is no longer enough and it must be delivered under positive pressure to force it across the lungs; and fighter aircrew fly to 40,000 ft and beyond, and pull g, which makes it harder still. The danger of hypoxia is that it arrives without warning — judgement and vision fail before the person realises anything is wrong. So a combat aircraft carries a life-support oxygen system that guarantees the aircrew a breathable, correctly-pressurised supply across the whole flight envelope, and a ground organisation that keeps it charged and proven. It is, quite literally, life-support — which is why it is engineered, charged and tested with a rigour reserved for things that kill people when they fail.

Q · 02 What is the oxygen regulator, and why does it matter?

The regulator is the precision device that decides how much oxygen the aircrew get, and at what pressure — it is the heart of the airborne system. As the aircraft climbs, the regulator senses altitude and automatically increases the proportion of oxygen in each breath, then, higher up, adds positive pressure so the oxygen is forced into the lungs against the reduced outside pressure; some also manage the switch between the aircraft supply and an emergency supply. It has to do this automatically, accurately and instantly, breath by breath, for hours, and never fail — because if it delivers too little oxygen, or at the wrong pressure, the aircrew hypoxes out at exactly the altitude where that is fatal. That is why it is a precision pneumatic-mechanical instrument (aneroid-sensed demand valves), why its performance is schedule-verified against altitude on a test facility, and why indigenising it is a genuine engineering challenge rather than a simple copy. It is the part of the system that most rewards precision, and the part we work on as an indigenisation and integration partner.

Q · 03 What do you build, and what do you indigenise?

We are deliberately clear about the two halves. The ground oxygen system is our demonstrated build: the oil-free high-pressure oxygen booster that charges the aircraft, the charging trolleys, the mobile oxygen charging-and-distribution vehicle for the flight line, the charging hoses, adapters and ground regulators, and the oxygen test facility that verifies regulators and masks — all built on our high-pressure-gas, oil-free-compression and aircraft-ground-support competence. The airborne delivery — the aircraft demand / pressure regulator, the aircrew mask and helmet integration, and portable and helicopter oxygen sets — is offered as indigenisation and integration: we take on the engineering, qualification and integration, with the precision regulator internals, the specialist mask and helmet components and any OBOGS sieve beds co-developed or bought-in from specialists. So the honest position is: the ground system is ours to build, and the airborne delivery is ours to indigenise — and we do not blur the two. Offered engineered-to-order; no specific delivered system is claimed on this page.

Q · 04 Why must an oxygen system be oil-free and oxygen-clean?

Because high-pressure oxygen and any hydrocarbon is a fire and explosion hazard. Oxygen does not burn, but it makes almost everything else burn far more readily, and at high pressure a trace of oil, grease or even a fingerprint in an oxygen line can ignite from the heat of compression or a spark and burn through steel. So an oxygen system is engineered to a strict oxygen-clean discipline: the compression is oil-free by design (no oil anywhere near the gas), every wetted component is degreased and cleaned to an oxygen-service standard, compatible materials and lubricants are used throughout, and the assembly and testing are done in clean conditions. This is not optional polish — it is the difference between a safe charging system and a bomb. It is also exactly the discipline behind our oil-free compressed-air and gas systems, which is part of why the ground oxygen system sits naturally in our competence: we already build to oil-free, high-pressure-gas standards.

Q · 05 OBOGS or stored oxygen — what is the difference?

They are two ways to give the aircraft its oxygen. Stored oxygen means the aircraft carries its supply — as high-pressure gaseous oxygen in cylinders (charged on the ground, which is where our charging system comes in) or as liquid oxygen (LOX) in a converter that boils off gas as needed. It is simple and proven, but it is finite, and it has to be replenished on the ground between flights. OBOGS — an on-board oxygen generation system — instead makes oxygen in flight, using a molecular sieve that concentrates oxygen out of the engine bleed air, so the aircraft is not limited by a stored quantity and needs far less ground replenishment. Modern combat aircraft increasingly use OBOGS for that reason, though it still needs a back-up oxygen supply and careful monitoring. Both approaches still need a regulator to deliver the oxygen to the aircrew, and both need ground charging or servicing and test — so whichever the aircraft uses, the ground system and the delivery regulator are common ground, and that is where we work.

Q · 06 Can you charge and test at the flight line?

Yes — that is the point of the mobile oxygen charging-and-distribution vehicle, and it is one of the things we demonstrably build. Rather than take each aircraft to a fixed oxygen bay, a self-contained vehicle brings the capability to the aircraft on the apron: it carries a bank of high-pressure oxygen, an oil-free booster to charge to the aircraft’s rated pressure, the distribution manifold, hoses and adapters, and the controls and safety to do it cleanly and quickly between sorties. Alongside it, an oxygen test facility — fixed or mobile — verifies that regulators and masks deliver the right flow and pressure across the altitude schedule before they are trusted in the air. Together these are the ground half of the system: charge it, distribute it, and prove it, on the flight line, to a life-support standard. This ground capability is our established competence, and it is the natural anchor from which we take on the airborne-delivery indigenisation.

↗

The aircraft-GSE & HP-gas line from Neometrix.

The nitrogen charging, oil-free gas and high-pressure regulation systems alongside it — engineered at our Noida facility.

↗ Aircraft GSE

Aircraft Tyre Nitrogen Charging Rig

The sibling aircraft-GSE gas cart — high-pressure nitrogen charging at the flight line.

↗ Oil-Free HP Gas

Dry Oil-Free Compressed-Air System

The oil-free compression discipline — the same clean, dry, high-pressure-gas engineering.

↗ HP Gas Regulation

Pressure-Reducing Panel (HP Air)

High-pressure gas regulation panels — the pressure-control sibling to oxygen delivery.

Browse all Neometrix product lines.

Get a quotation

Send the aircraft
and the scope.

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 — aircraft oxygen system Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — AIRCRAFT OXYGEN SYSTEM OXYGEN CHARGING · OIL-FREE HP BOOSTER · MOBILE CHARGING VEHICLE · AIRBORNE DELIVERY · OXYGEN-CLEAN ENGINEERED IN NOIDA · INDIA

Keep the aircrew breathing.

Above the altitude you can breathe.

Breathe, or black out

Charge it, then deliver it

An honest split

Charge, deliver, test.

The Ground Oxygen System

The Airborne Delivery

Oxygen-Clean & Oil-Free

Test, Indigenise & Integrate

Reference system, built to the aircraft.

Where an oxygen system is unforgiving

One system, ground to mask.

Oxygen Charging & Booster Plant

Mobile Oxygen Charging & Distribution Vehicle

Aircrew Oxygen Delivery — Regulator & Mask

Portable / Helicopter Oxygen + Test Facility

Where it keeps them breathing.

Common questions.

The aircraft-GSE & HP-gas line from Neometrix.

Aircraft Tyre Nitrogen Charging Rig

Dry Oil-Free Compressed-Air System

Pressure-Reducing Panel (HP Air)

Send the aircraft
and the scope.

Similar Products

Share This Page

Keep the aircrew breathing.

Above the altitude you can breathe.

Breathe, or black out

Charge it, then deliver it

An honest split

Charge, deliver, test.

The Ground Oxygen System

The Airborne Delivery

Oxygen-Clean & Oil-Free

Test, Indigenise & Integrate

Reference system, built to the aircraft.

Where an oxygen system is unforgiving

One system, ground to mask.

Oxygen Charging & Booster Plant

Mobile Oxygen Charging & Distribution Vehicle

Aircrew Oxygen Delivery — Regulator & Mask

Portable / Helicopter Oxygen + Test Facility

Where it keeps them breathing.

Common questions.

The aircraft-GSE & HP-gas line from Neometrix.

Aircraft Tyre Nitrogen Charging Rig

Dry Oil-Free Compressed-Air System

Pressure-Reducing Panel (HP Air)

Send the aircraftand the scope.

Similar Products

Share This Page

Send the aircraft
and the scope.