and B-2A Spirit. C Cargo. Transports are designed to carry cargo and passengers to provide tactical logistical support and strategic mobility to other forces. Examples are the C-2 Greyhound and C-130 Hercules. E Electronic. Electronics craft are designed explicitly to fulfill electronic specialty missions such as ECM, ACC, AEW, and communications. Examples are the E-2 Hawkeye and E-3 Sentry. F Fighter. Fighters are designed to intercept and engage enemy aircraft and missiles. It is also a catch-all for multi-mission aircraft, even if it is primarily designed for ground-attack purpose. Examples are the F-22 Raptor and F-16 Fighting Falcon. L Laser. Laser craft are those that are primarily designed to employ laser weaponry against air and ground targets. This is a very new designation, and only applies to the AL-1 airborne laser (ABL) program. O Observation. Observation craft are designed to maintain observation over land, primarily territory either held by enemy forces or susceptible to infiltration. Unlike reconnaissance craft, they loiter over area providing observation over time. Examples are the O-1 Bird Dog and OV-10 Bronco. P Patrol. Patrol craft are designed for maritime reconnaissance missions, including anti-submarine warfare. Example is the P-3 Orion. R Reconnaissance: Reconnaissance craft are designed to conduct reconnaissance through photographic and electrical means, example SR-71. S Anti-submarine: Anti-submarine warfare (ASW) craft are designed to locate and attack enemy submarines. Example is the S-3 Viking. T Trainer: Trainers are aircraft used to train aircrews. Examples are the T-6 Texan II and T-45 Goshawk. U Utility: Utility craft are utilized for miscellaneous missions and base support, like the U-3A. The U designation has also been used to obfuscate an aircraft's true purpose or capabilities, like with the U-2. X Research: Research craft are designed for experimental and developmental research programs. Unlike the X mission modifier, the X basic mission symbol is used for craft solely designed for this purpose, with no operational mission intended or feasible. Examples are the entire series of X-planes from the Bell X-1 on. Vehicle type symbols For non-standard vehicle types (vehicles other than piloted, fixed-wing and self-propelled aircraft which are wholly supported by aerodynamic lift from liftoff to touchdown), a final symbol is added after the basic mission symbol to identify the vehicle type. Current applicable symbols are as follow: D UAV Control Segment. Equipment used to control unmanned aircraft. An example is the MD-1A, used to launch, control, and recover the MQ-1