Equipment and systems
Military Technology: What the Equipment Does and What It Costs to Use
Equipment is easier to list than to understand. These pages describe what each class of system is actually for, how it is organised into units, and the sustainment and doctrine that decide how much of it is usable on a given day.
A catalogue of hardware explains very little on its own. What matters about a piece of military equipment is the set of problems it was designed to solve, the compromises accepted to solve them, and the organisation required to keep it working. A fighter is a set of trade-offs between range, payload, signature and cost. A tank is a set of trade-offs between protection, mobility and weight, and weight determines what can carry it to the fight, which is a strategic question disguised as an engineering one.
These pages are organised by domain rather than by service, because equipment increasingly crosses service boundaries. Fixed-wing aircraft are flown by the Air Force, the Navy, the Marine Corps and the Army. Unmanned systems are operated by all of them. Satellite communications support every one of them and are managed by a service that did not exist a decade ago.
Three things worth knowing before reading any equipment page
Numbers on paper are not numbers in service. A programme of record states how many units are intended. The inventory states how many exist. Mission-capable rates state how many can fly, sail or drive today. Those three figures differ, sometimes very widely, and only the third one affects what a commander can do.
Sustainment is the real constraint. Spare parts, depot capacity, trained maintainers and the supply chain behind them determine availability. This is the least visible part of any equipment story and usually the decisive one.
Doctrine changes faster than hardware. Equipment stays in service for decades while the way it is used is rewritten repeatedly. An airframe designed for one kind of war is routinely employed in another, and that mismatch (not the airframe's specifications) is usually what the arguments are about.
Classes of equipment
Seven sections- 01 Aircraft Fighters, bombers, transports and the tanker fleet that keeps them airborne.
- 02 Helicopters Attack, assault, cargo and reconnaissance rotary-wing types.
- 03 Tanks and armoured vehicles Main battle tanks, infantry fighting vehicles and protected mobility.
- 04 Ships and submarines Carriers, surface combatants, amphibious ships and the submarine force.
- 05 Drones Unmanned aircraft from hand-launched to high-altitude, and where they fit.
- 06 Cyber warfare Network operations, electromagnetic warfare and the units that run them.
- 07 Space warfare Orbital surveillance, missile warning and satellite communications.
How equipment is organised into units
Hardware does not deploy on its own; it deploys inside a unit that has a fixed establishment of equipment and people. Understanding the unit tells you more about capability than understanding the vehicle.
In the Air Force the basic flying unit is the squadron, grouped into wings. In naval aviation the squadron is embarked as part of a carrier air wing. Army aviation organises into battalions within an aviation brigade. Ground combat power is organised around the brigade combat team, which is built in armoured, infantry and Stryker variants — the variant determines the vehicle mix and therefore how the formation moves and what it can survive.
At sea the equivalent unit of account is the strike group: a carrier with its air wing, escorting surface combatants and, usually, an attached submarine. Amphibious capability is organised the same way, around an amphibious ready group carrying a Marine expeditionary unit.
This is why "how many tanks" or "how many fighters" is rarely the useful question. The useful question is how many complete formations can be generated, sustained and moved.
Accounts
How a system gets from a requirement to a squadron
Every piece of equipment described in this section went through the same acquisition sequence, and knowing where a programme sits in it explains most of the news about it. A service first documents a capability gap. Development is then authorised in stages, separated by milestone decisions at which the programme has to show it is ready to proceed: technology maturation, then engineering and manufacturing development, then production.
Production usually begins at a low rate, to build test articles and prove the manufacturing line before the government commits to full quantities. Operational testing is carried out by forces using the system as they would in service, and the Department of Defense has an independent Director of Operational Test and Evaluation who reports on the results to Congress. A system that passes developmental testing and struggles in operational testing is a common story, because the two ask different questions.
Service entry is declared in two steps. Initial operational capability means the first unit can use the system for its intended mission; full operational capability means the planned force has it with the training, spares and support in place. Years can separate the two.
After that, the design keeps changing. Aircraft and vehicles are upgraded in blocks or increments, and a type that entered service decades ago may share little beyond its airframe or hull with the version flying today. That is why the equipment pages give a type's variants as much space as its original specification. The same applies to comparisons between types: a figure quoted for one variant is often compared, without comment, against a figure for a quite different variant of the other.
Questions and answers
What is the difference between a weapon system and a platform?
A platform carries things: an airframe, a hull, a chassis. A weapon system is the platform plus the sensors, the fire-control, the weapons themselves and the crew training that makes it usable. Two air forces flying the same airframe can field very different weapon systems, which is why comparing aircraft by airframe alone tells you little.
Why do so few programmes reach the numbers originally planned?
Because the buy is decided over decades, not at the start. A programme is authorised against one threat assessment and one budget forecast, then delivered against another. Unit costs rise as quantities are cut, which makes further cuts easier to justify, and the aircraft or ship that entered planning as a large fleet often enters service as a small one.
Does newer equipment mean more capability?
Not by itself. Availability rates, spare-parts pipelines, crew experience and maintenance depth decide how much of a fleet is usable on any given day. A well-supported older type frequently generates more sorties or sea days than a newer type still working through its sustainment problems.
How is equipment retired?
Rarely all at once. Types are usually withdrawn squadron by squadron or hull by hull as replacements arrive, with the oldest airframes going first and a residual fleet kept for training or test. Some retired equipment is stored in recoverable condition, some is transferred to allied forces, and some is expended as targets.