I-13 Katana-class Interceptor

The was the UNSC's main fighter during the Fifty-Years' War.
==Design==
The I-13 was designed by Baran Shipyards under contract from the UNSC Navy as a replacement for the C-709 Longsword interceptor. It is less than half the size of the Longsword, but can hold more compressed oxygen, allowing pilots to remain deployed for a considerable amount of time.
===Armament===
The Katana is armed with a variety of anti-fighter weapons. It has twin 95mm autocannons mounted forward which are controlled by the pilot. The pilot simply has to look in the direction he intends on firing in, then squeeze the trigger. The computer assists in aiming and fire-control to avoid friendly fire.
The I-13 also mounts a Battleaxe missile system, a powerful anti-single-ship missile system that can lock on to and track targets up to three kilometers away.
Finally, the I-13 has a rear-mounted directed-energy weapon controlled by a gunner. The cannon is operated like a standard machine-gun, and fires an energy pulse similar to the Defender tank's main gun.
===Defenses===
The Katana is made out of a strong Titanium-A alloy framework, with the outer hull being constructed out of an alloy that was developed by the UNSC specifically for starcraft and is classified to high levels. 
To further protect the crew, the Katana was equipped with a new energy shield developed from the Covenant Seraph fighter's design.
==Servicemens' comments==
"The Katana is one lovely little beast. It's got the speed and range of the Longsword, but with better manueverability and a smaller profile."