Afterburner

Afterburners, known as Turbo on ground vehicles, are active boosts that allow the vehicles to which they are attached to temporarily increase both their acceleration and maximum speed.

and the Liberator enjoy access to built-in afterburners, the Magrider has access to its unique Magburner by default, and both Harasser and Javelin come stock with a built-in turbo boost, but the Flash and ANT must equip the appropriate ability in their ability slots to access an afterburner.

To activate afterburners, press and hold the Afterburner hotkey ( by default.)

Mechanics
Each afterburner has a standard fuel tank size, measured in seconds, and a replenishment time. Both of these stats vary based both on vehicle and the user's certifications and loadout choices on that vehicle.

While listed fuel tank capacities are approximately the true size of the vehicle's tank, server and/or player lag can greatly increase the duration for which a vehicle can run its afterburners far past the intended duration, thus listed durations below should be used as guidance and not as absolutes.

Upon activating an afterburner, the fuel tanks suffer an 'activation penalty,' and a given amount of fuel is immediately drained from the vehicle's tanks. This penalty is suffered each time the afterburner is activated, even if the key is pressed multiple times in rapid succession. If the vehicle cannot front the fuel required to endure the activation penalty, afterburners cannot be used.

Once the afterburner key is released, or the tank is emptied, the recharge immediately begins. As soon as enough fuel to match the activation penalty is available, afterburners can be immediately used again.

Empire Specific Fighters
, also known as ESFs, have access to an afterburner at all times. There is no certification linked directly to their afterburners.

Without the use of External Fuel Tanks, a unique selection of wing mounts available to ESFs allowing them to modify the stats of their afterburner's fuel tanks, the ESF afterburner has a 5 second fuel capacity, and requires 15 seconds to replenish from zero fuel.

ESF afterburners, unlike other afterburners, have an two activation penalty levels. In forward flight mode, the activation penalty is 1 second. However, if the aircraft is in hover mode the activation penalty is increased to 1.5 seconds.

Unlike the Liberator's afterburners, ESF afterburners can be used without bringing the aircraft out of hover mode. Thrust from the afterburners is directed based on the facing of the engines, rather than the bearing of the nose, allowing the ESF to use its afterburners to propel itself perpendicular to the direction in which the nose is pointed.

The engines will naturally rotate back into forward flight mode if the ESF is in hover mode when afterburners are in use, though this can be prevented by continuously pitching the ESF's nose down.

Liberator
Liberators have access to an afterburner at all times. The passive certification LF-100 Afterburner allows the pilot to increase the replenishment rate of the bomber's fuel tanks.

The Liberator's afterburners have a 4.5 second fuel capacity, an activation penalty of 1 second, and require 40 seconds to replenish from zero fuel, though this can be decreased to 20 seconds by upgrading the aforementioned passive certification.

Flash
Flashes do not have access to an afterburner by default. The utility ability NFI-2000 Turbo allows the driver to add access to a turbo afterburner, and raising the level of the ability increases the replenishment rate of the ATV's fuel tanks.

The Flash's turbo has a 4 second fuel capacity, an activation penalty of 1.5 seconds, and requires 30 seconds to replenish from zero fuel, though this can be decreased to 15 seconds by upgrading the ability.

Javelin
Javelins have access to a turbo afterburner at all times. There is no certification linked directly to its afterburner.

The Javelin's turbo has a 4 second fuel capacity, an activation penalty of 2.5 seconds, and requires 12 seconds to replenish from zero fuel.

Uniquely, the functionality of the Javelin's turbo can be modified by the choice of chassis.
 * Agility Chassis causes the turbo to additionally provide positive vertical thrust, as well as the expected forward thrust.
 * Combat Chassis causes the turbo to increase the Javelin's strafing abilities while active.
 * Speed Chassis increases the replenishment rate of the turbo by 30%, decreasing the time taken to recharge from empty to 9 seconds.

Harasser
Harassers have access to a turbo afterburner at all times. The passive certification NFI-2000 Turbo] allows the driver to increase the replenishment rate of the buggy's fuel tanks.

The Harasser's turbo has a 4 second fuel capacity, an activation penalty of 1 seconds, and requires 30 seconds to replenish from zero fuel, though this can be decreased to 15 seconds by upgrading the aforementioned passive certification.

Magrider
Magriders have access to the Magburner at all times. The passive certification Magburner allows the driver to increase the replenishment rate of the tank's fuel tanks.

The Magrider's Magburner has a 1.5 second fuel capacity, an activation penalty of 0.5 seconds, and requires 35 seconds to replenish from zero fuel, though this can be decreased to 15 seconds by upgrading the aforementioned passive certification.

The Magburner's fuel tanks can additionally be instantly replenished using the Recharge utility ability, and the replenishment rate can be passively increased by 30% using the Multi-directional Exhaust defensive slot upgrade, which also increases the Magrider's strafing abilities while active.

ANT
ANTs do not have access to an afterburner by default. The utility ability C300 Turbo Engine allows the driver to add access to a cortium-powered turbo afterburner, and raising the level of the ability decreases the amount of Cortium consumed in powering the afterburner.

The size of the ANT's afterburner fuel tank is directly tied to that of the ANT's Cortium Storage, and it is replenished via mining cortium manually.