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X-13 Series

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40px-Terminal.png This article, X-13 Series, was written by Ajax 013. Please do not edit this fiction without the writer's permission.

The X-13 Series engine is used as the primary engines on all UNSC transatmospheric aircraft. It allows the vehicle to operate both in atmospheric conditions and in exoatmospheric conditions without separate engines or fuels.

The engine is a pulsed detonation jet feeding a variable ramjet engine featuring a variable inlet spike and optional turbine. During low speed, atmospheric flight, the engine inlet opens to its widest setting and the inlet doors close around the internal turbofan spools up, using multiple high grade titanium composite compressor and turbine fan blades. This gives it excellent thrust to power ratios at lower speeds, being used from taxing to mach 3. At higher speed, the internal gates open up, the turbine shuts down and closes inlet and the forward inlet spike is left open, allowing air into the engine, where fuel is injected under pressure and combusted in the chamber. The inlet spike can move to make the inlet narrower or wider, conversely making the speed higher or lower. The combustion chamber's airflow can be modulated to allow it to achieve scramjet capabilities, allowing most engines to achieve speeds upwards from Mach 7 to Mach 13 in atmosphere, giving it sufficient ability to escape atmosphere. However, to achieve transatmospheric travel, where air is not available, it closes the inlet spike then adds a oxidative to the fuel, turning the jet engine into a rocket engine. The performance of both configurations are roughly similar it both the atmosphere of a planet and in space. In addition the X-13 can be fitted with afterburners to give it additional thrust. The resulting engine has high super cruising speeds, good fuel efficiency and the power necessary to preform transatmospheric flights. The engine is entirely computer controlled, allowing it to be adapted to changing conditions and airspeed in seconds, letting the engine maintain maximum thrust power for its current speed.

This engine has been in use for almost 100 years, with its powerful design being unlikely to be replaced for another twenty years.

Uses


Equipment of the UNSC

Armour Systems

M4A2 Body Armour | M6B SOBA | M7 OGRe | M19 HazOp Armour | M26 Explosive Ordnance Disposal Armour | MJOLNIR Mk. VII | SPI Mk. III | M37 Pressure Suit | M11 Stealth Suit | Advanced Combat Engagement System | ARES | Infantry Shield Grading | Infantry Body Armour | Nanotech Polymers | Bio-Tech Force Enhancement | AEGIS | AURA Module

Camouflage Technology

Active Camouflage field | Camouflage Cloak Mark II | DU-35 Optical Camouflage | Active camo Tech | ECM Technology | 2606 Thermal Optical Camouflage

Warship Technology

Capital Ship Shield Grading | Shaw-Fujikawa Model 52 | Plasma Fusion Drive | Firestorm CIWS | Windstorm CIWS | Thunderstorm CIWS | Decoy Launcher | AN/SLQ-1011 PAVE FAITH | Slipspace Scrambler Installation | Ship Armour Plating | Ship Boring Umbilical Laser | High Orbit Precision Entry | Starcraft Weaponry (Necros)

Spacecraft Technology

Starcraft Shield Grading | Spacecraft armour | DECEPTION | Area Defence and Interception System | X-13 Series | SUBTERFUGE

Satellites

TERRA Ion Satellite | LUNA Laser Satellite | SOL Laser Satellite | COMET Directed EMP Satellite | METEOR Kinetic Bombardment Weapon | ASTEROID Kinetic Bombardment Weapon | HELIOS Satellite

Aircraft Technology

BELLIGERENT | Gunpod Technology | Hardpoint Systems | X-13 Series | SUBTERFUGE

Ground Vehicle Technology

M980 WAO/AM DW | CARAPACE DAPS | Armour technology | ADIS System | REBOUND | NOCTURNAL | BLINDER | Artillery Fire Control System | PALADIN Weapon Station | NEMESIS | AN/VLQ-1010 PAVE HOPE

Stationary Weapons

Mk, 2588 Trebuchet MAC | M388B Hecatoncheires ADS | M389A Briareos ADS | M8A2 Wolf Spider ADS | Longbow Missile silo

Mobile Equipment/Weapons

Shortbow Missile Trailer | MOLE

Infantry Equipment

Ghost | Defuser | DV-4 Energy Shield | DV-5 Energy Shield | SL-4 Beacon | Misriah Rails | Radio Pack | Communication Pack | Battle Dress Utilities | Battle Equipment Utilities | AC4 Helmet Mounted Display | AC5 Heads Up Display | M-1126 Explosives Installation Tool | ABC Scrambler | Electronic Engagement System | Cybernetic Attack System | PAVE ROOK Sensor | SPHINX System | G-Pack | M35 Beacon

Mobile Equipment

B-68 Command Post | Type-D Resupply Canister

Medical Technology

Elixia | Biofoam | Defibrillator | Adrenal Booster | MethAmp | Reflex Enhancer | K-Boost

Other Technology

War Net | Artificial Intelligence (Necros) | LAIRD | RATS | Liquid State Electronics | EXCALIBUR | Pyrosene-VI

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