Two new models of stealthy jet fighter. A new(ish) aircraft carrier. Separate ballistic missiles for targeting orbital satellites and ships at sea. A host of cyberespionage tools. Everybody's already heard about China's main new weapon systems, developed and deployed in alternating fits of secrecy and pageantry over the past decade of the Middle Kingdom's explosive economic and military growth. But what about China's other high-tech war gear -- those air, sea, space and ground systems that round out Beijing's fast-modernizing armed forces and underpin the ruling Chinese Communist Party's expanding ability to influence, or even bully, its Asian neighbors? The latest installment (.pdf) of the Pentagon's annual report on Chinese military developments, released today, highlights some of these lesser-known but still potentially world-changing weapons. Photo: Xinhua

Export drone Unveiled in November at the Zhuhai air show in southern China following seven years of development, the Yi Long drone -- Beijing's $1-million answer to the more expensive U.S. Predator and Reaper -- is likely meant for domestic use and export, according to the Pentagon's China report. "Chinese arms are less expensive than those offered by the top international arms suppliers, although they are also generally of lower quality and reliability," the report notes. But Beijing's intended buyers -- the worst African and Middle Eastern autocracies, for the most part -- usually don't mind these drawbacks, as they're often embargoed from buying better-quality arms from mainstream suppliers. And that's exactly why the world should worry about Yi Long and other export-optimized Chinese drones. They're not the best systems in the world, but they're highly likely to wind up in the hands of exactly the kind of people who can't be trusted with them.

Knock-off attack copters Since last year, the ground-warfare branch of the Chinese People's Liberation Army has "benefited from increased production of new equipment, including the Z-10 and Z-19 attack helicopters," according to the U.S. China report. Roughly analogue to the American Cobra gunship and Kiowa scout, respectively, the Z-10 and Z-19 could provide PLA ground troops their first reliable close air support -- a major combat advantage. But technically the Chinese shouldn't possess at least one of the helicopters. While the Z-19 is a copy of a copy of a French design and just might be legal (Beijing did legally acquire the rights to Paris' original blueprints), the Z-10 relies on engine controls illegally acquired from a Canadian subsidiary of American manufacturer Pratt & Whitney. The company, which also builds engines for American stealth fighters, pleaded guilty to the unauthorized technology transfer last summer and paid a $75-million fine, the China report notes. But it's too late to prevent Beijing from producing scores or even hundreds of Z-10s using the illicit hardware. Photo: China Daily Forum

Digital command For many decades the three-million-strong PLA -- by far the world's largest active army -- banked on sheer mass over combat prowess, planning to overwhelm battlefield adversaries with waves of infantry and tanks instead of maneuvering for advantage. That's beginning to change. "To develop a new cadre of officers, the PLA is reforming its academies to cultivate junior officers proficient with and capable of leveraging technology in all warfighting functions," the China report states. To this end, last year some Chinese army training exercises banned paper maps, forcing officers to use computerized systems for command and control -- a practice that has long been commonplace in the U.S. military. Photo: World Affairs Board

Space beacon As Chinese forces become more high tech, they increasingly need access to space-based systems to plot their movements and guide their weapons. Last year the PLA launched six copies of its Beidou positioning satellite, Beijing's answer to the American GPS spacecraft. Beidou allows ground, air and sea forces to determine their location on Earth with a high degree of accuracy -- but only within east Asia. Beidou is a geostationary constellation that, so far, only covers China and its immediate surroundings. The six GPS-style spacecraft that Beijing placed in orbit last year "completed the regional network as well as the in-orbit validation phase for the global network," according to the China report. In other words, Beidou could get a lot more expansive in coming years, laying the navigational foundation for Chinese military deployments all over the world. Photo: Xinhua

Sea guardian The sea, more than any other domain, is the focus of the PLA's modernization. Last summer's first test cruise of the refurbished Soviet aircraft carrier Lioaning symbolized Beijing's determination to eventually dominate the western Pacific Ocean. But at her debut, Liaoning was basically defenseless. Whereas American, French and Russian flattops sail alongside powerful escort ships bristling with radar-guided defensive missiles, Liaoning sailed alone. The PLA Navy lacks large, modern warships with the equivalent of the U.S. Navy's Aegis radar and Standard missile. That, however, is changing. Last year China launched the first of up to a dozen Type 052D destroyers, likely meant to equal U.S. warships' ability to protect aircraft carriers. The new destroyer type includes what the China report describes as "the PLA Navy’s first multipurpose vertical launch system" for rapidly firing large numbers of missiles. Photo: China Military Review

Arsenal sub China is making huge progress with its undersea military capabilities, building several new nuclear- and diesel-powered submarines per year. China's subs are still smaller, louder and less sophisticated than American models, but Beijing has signaled its clear intention to some day match the U.S. sub-for-sub. That applies even to America's most secretive submarine type, the Ohio-class guided missile subs, converted from nuclear ballistic missile carriers. Today these so-called "SSGNs" -- in essence, undersea arsenals -- pack 154 conventional cruise missiles plus special facilities for deploying commandos and drones. Indications in the past year are that China wants a similar sub. "In the next decade, China will likely construct the Type 095 guided-missile attack submarine (SSGN), which may enable a submarine-based land-attack capability," the China report warns. The new sub's ability to strike land targets at long range from the sea would be a first for Beijing. Photo: Military News