Pelican

The Dropship 77-Troop Carrier (abbreviated D77-TC), more commonly known as the Pelican, is an extremely versatile craft used by the United Nations Space Command, mainly for the pickup and transportation of personnel, vehicles and equipment, although it can also be used as a powerful support gunship.

Background
The D77-TC Pelican is mainly responsible for the rapid insertion and extraction of troops. They also deliver vehicles and equipment to the battlefield, when required. The D77-TC has been in service for over fifty years, and is the primary tactical support aircraft of the UNSC. The Pelican serves a multi-role purpose; it is fully capable of atmospheric flight and can land almost anywhere without difficulty. The Pelican is also capable of limited spaceflight, which the UNSC uses as a primary way of delivering troops to the surface from orbit. Standard armament consists of one Class III externally powered projectile weapon at the fore of the vehicle, and one Class I gas-operated projectile weapon mounted at the rear, in the extended crew area. More heavily armed variants exist, with multiple and more powerful weaponry.

Payload Capacity
The Pelican is capable of carrying passengers and cargo using a combination of internal and external methods. Specifically, the main compartment of the Pelican is sometimes called the "Blood Tray". The "Blood Tray" has enough compartment space for ten people (sitting down), but can hold five additional standing people. Other variants have displayed the ability to hold considerably more as demonstrated by specific scenarios throughout the Halo books. For example, the SPARTAN-II's were assigned a specialized Pelican, which was able to hold an entire team of twenty five, as well as fitting cutting gear to board a Covenant warship. Three Pelicans used for the SPARTAN-III Program carried 300 children though this may have been the effort of numerous trips back and forth from the surface.

The large aft overhang gives an attachment point for additional, cargo and ordnance. Possible payloads include a troop deployment pod, a Scorpion tank, a Warthog, or eight Resupply Canister Type-B Capsules. The maximum payload of a Pelican is seventy tons.

Armament
Standard armament consists of a chin-mounted 40mm rotary-cannon which was common prior to 2525, but was later superseded by a 70mm weapon. These chain-guns are usually controlled by the pilot's helmet so that it would aim in the direction of the pilots view, similar to the modern TADS/PNVS found on Apache Gunships or the HUD system in a SPARTANs armor. Some dropships boasted twin chain guns firing depleted uranium slugs.

Missile pods, each holding eight ANVIL-II ASMs, can be mounted under each wing to engage more maneuverable or better protected targets. Fire control is typically delegated to the copilot, who was assisted by a helmet-mounted display. A M247 GPMG, or a 25mm grenade launcher can also be mounted facing out of the rear cargo hatch and the latter two can be folded flat against the roof of the internal bay when not in use by the crew chief or passenger.

Propulsion
The main engines are mounted in pairs in four nacelles, one on each wing and two at the rear. The nacelles can articulate independently, thus altering (i.e, Vectoring) the direction of thrust and improving the dropship's low altitude maneuverability. Six ventral thrusters, two on each wing nacelle and one on each aft nacelle, allow the Pelican to land and take off vertically. These engines are capable of both space and atmospheric operation. The D77, although fully capable of orbital insertion, is too small to be equipped with a Shaw-Fujikawa Translight Engine, and thus is incapable of slipspace travel.

The wings mounted on a Pelican seem extremely small, too small to support the weight of dropship and payload alone. It is speculated that it incorporates at least some lifting body principles, its own hull providing most of the lift necessary.