CH-46 Sea Knight

The CH-46 Sea Knight is a medium-lift transport helicopter with tandem rotors, seen in the game Call of Duty 4: Modern Warfare. It is a naval version of the CH-47 Chinook heavy-lift helicopter. The CH-46 can be seen while playing as the British SAS and Marine Force Recon. The British helicopter's call sign is Big Bird, while it's American counterpart is Outlaw Two-Five. They are generally used for extraction. They can be mounted with a .50 cal machine gun on each side. The CH-46 is due to be replaced by the MV-22 Osprey in 2011, which is when Call of Duty 4 takes place, however the USMC has not begun the transition process by the time of the game's events. The CH-46 Sea Knight has two 5000hp engines providing the lift to carry heavy loads such as a truck or a humvee at reasonable speeds.

In real life the Sea knight is used by the marines to provide all-weather, day-or-night assault transport of combat troops, supplies and equipment.

Trivia

 * The Sea Knight can carry up to 25 troops but in the game it appears the most it can carry is 4-10 people.
 * The callsign of the of the SAS helicopter, Big Bird, is the same callsign used as the Sea Knight that extracted Captain MacMillan and (then Lieutenant) John Price in One Shot, One Kill. This could be the same chopper, or it could be a basic code name.
 * The CH-46 also makes an appearance in Call of Duty Modern Warfare 2, where it is used to move casualties during the battle in Washington, DC. The CH-46 should not be seen, as it is only in USMC service and would be phased out by 2016 anyway, replaced by the MV-22 Osprey. A possible explanation is that since D.C. is a very large city, the old CH-46s were mobilized as a last resort, possibly to evacuate the thousands of casualties expected, although they are seen in missions such as Cliffhanger and Just Like Old Times aswell as a fairly large number in the Boneyard in Afghanistan
 * In Call of Duty 4: Modern Warfare, there is a crashed CH-46 Sea Knight on the multiplayer map Crash, presumably taken from the level Aftermath, thought the scenery is a bit different than in Aftermath
 * In Sept. 24, 2004 the U.S. Navy retired its airframe. It is still in U.S. service until the MV-22 is fielded out.
 * In keeping with the fact that they have been long retired by the time of the game, dozens of Sea Knights can be seen in the Boneyard in the level The Enemy Of My Enemy.