How do aircraft carrier arresting cables work?

In real-world carrier aviation, an arresting cable stops an aircraft when its tailhook catches a raised cross-deck pendant. That pendant pulls purchase cables connected to a below-deck arresting engine, which applies controlled resistance and converts the aircraft’s kinetic energy mostly into heat, stopping it over a short, regulated runout.

What happens when the tailhook catches a wire?

The hook, deck pendant, purchase cable and arresting engine act as one controlled energy-absorption chain. The visible wire is not simply tied firmly to the deck at both ends.

1. The aircraft touches down: The tailhook trails behind the aircraft and slides along the deck. Cross-deck pendants are held slightly above the surface so the hook can enter beneath one.
2. The hook catches the pendant: Forward movement pulls the wire aft into a V shape. The hook usually engages after the main wheels have touched down.
3. The load passes below deck: The pendant pulls connected purchase cables through deck-edge sheaves and into the arresting engine.
4. The arresting engine pays out cable: Controlled resistance lets the wire travel with the aircraft while progressively removing its speed. This avoids the near-instantaneous load that a fixed cable would produce.
5. The system resets: Once the aircraft has stopped and disengaged, the machinery retracts the cable and prepares it for another arrestment.

Pilots do not steer directly at a painted wire. They fly the prescribed glide path, angle of attack and centreline so the hook lands in the correct engagement area; cable numbers and deck arrangements vary between ships. Our overview of carrier launches and recoveries explains how this fits into the complete landing sequence.

Where does the aircraft’s energy go?

Most of the aircraft’s kinetic energy is absorbed by machinery below the flight deck and ultimately dissipated as heat. In traditional systems, cable movement drives a hydraulic mechanism that forces fluid through a controlled restriction; newer installations may add rotary, electrical and digitally controlled components.

The resistance is matched to the expected aircraft mass and engagement speed. Because kinetic energy follows E = ½mv², additional speed raises the energy disproportionately. An incorrect setting could stop a light aircraft too harshly or allow a heavy, fast aircraft excessive runout.

The tyres and wheel brakes are not the primary stopping system during the arrestment, and the cable does not work like a giant elastic band. Its controlled payout spreads deceleration over distance while the tailhook and reinforced aircraft structure transmit the load.

Why does the arresting cable not snap?

It survives because its strength, controlled payout and maintenance limits are designed around the permitted arrestment envelope. Several safeguards work together:

• The cross-deck pendant is high-strength flexible wire rope made to withstand severe dynamic loads.
• The arresting engine limits the peak force rather than stopping the cable dead.
• The aircraft’s hook, hook attachment and surrounding structure are built specifically for arrested landings.
• Deck crews inspect the pendant and associated fittings for broken strands, deformation and other damage, replacing wear components at defined limits.

A wire can still part if it is damaged, overloaded or subjected to an abnormal engagement. A broken cable recoils with lethal energy, which is why personnel remain clear of its danger area during recovery operations.

What happens if the aircraft misses every cable?

A missed arrestment is called a bolter, and the aircraft accelerates away for another attempt. Carrier pilots apply the prescribed bolter power at touchdown and retain it until they know the hook has caught, because there is too little deck remaining to pause and then decide to go around.

Bolters can result from an incorrect glide path, hook bounce, deck movement, a hook that was not lowered or a failure to engage a pendant cleanly. Missing the wires is not automatically an accident if the aircraft remains controllable and follows the bolter procedure. A barricade is a separate emergency recovery device, not the normal fallback for every missed cable.

Arresting cables in flight simulators

A simulator needs functional carrier and tailhook logic; visual cables painted on a deck may have no arresting capability. Some implementations model individual wires and runout, while simpler ones trigger a fixed deceleration when the aircraft enters an arresting zone.

In Microsoft Flight Simulator, first establish which carriers provide working arresting wires. If the hook is visibly down but every landing becomes a bolter, the carrier may be decorative, the aircraft may lack compatible tailhook logic, or the touchdown point may be outside the programmed capture area.

Technique still matters when the carrier is functional. Our F/A-18 approach and bolter procedure for MSFS covers angle of attack, glide-path control, hook engagement and recovery after a missed wire.