Wubei Zhi

Wubei Zhi (Chinese: 武備志; pinyin: Wǔbèi Zhì; Treatise on Armament Technology or Records of Armaments and Military Provisions), also commonly known by its Japanese translated name Bubishi, is the most comprehensive military book in Chinese history. It was edited by Mao Yuanyi (茅元儀 Máo Yuányí; 1594–1640?), an officer of waterborne troops in the Ming Dynasty. Wubei Zhi contains 240 volumes, 10405 pages, and more than 200,000 Chinese characters, which makes it the longest book in Chinese history regarding military affairs.

Structure

Wubei Zhi consists of five sections, "Bing Jue Ping", "Zhan Lue Kao", "Zhen Lian Zhi", "Jun Zi Sheng", and "Zhan Du Zai".

Containing 18 chapters, this section includes military theories such as those of Sun Tzu, some dating back to the last years of Eastern Zhou Dynasty, more than 1,800 years before the editor.

This section comprises 31 chapters, and describes more than 600 specific examples of battle that took place between the Eastern Zhou Dynasty and the Yuan Dynasty. Among those are Battle of Maling, Battle of Red Cliffs, which is a classic example of defeating overpowering enemy.

Chih

For the Celtic F.C. footballer, see Zheng Zhi

There are many Chinese words whose pronunciation can be represented as "chih" (or, in the modern romanization, zhi) in Chinese:

Harbin Z-20

The Harbin Z-20 or Zhi-20 is a medium lift helicopter produced in the Northeast of China. Its first flight was on 23 December 2013. The helicopter has a maximum takeoff weight in the range of 10 tons, can drop troops at locations of up to 3,000 ft (910 m) altitude, and could operate form the Chinese aircraft carrier Liaoning. It is thought to be comparable to the US made Sikorsky UH-60 Black Hawk helicopter, the civilian Sikorsky S-70C-2 variant of which has been used by the People's Liberation Army since 1984. Some sources suggest that the Z-20 is a copy of the Black Hawk and link the design to the Black Hawk that was abandoned by US special forces in Pakistan during the operation to kill Osama bin Laden on 1 May 2011. The sources say that Pakistan allowed Chinese officials to examine the Black Hawk wreckage. However, Aviation Week also points out that although some aspects of the design do appear similar, such as the tail wheel arrangement, there are also marked differences. For example, the Chinese Z-20 has a five blade rotor compared with the Black Hawks' four blades.