title: P class
text: # P class
  
  P class or Class P may refer to:
  
  ## Computing
  
  * P (complexity), a computational complexity class
  
  ## Ships and yachts
  
  * P-class cruiser, a class of 12 heavy cruisers planned for construction by the Kriegsmarine during the late 1930s, but cancelled before any could be built
  * Pelorus-class cruiser, a class of 11 protected cruisers operated by the Royal Navy and Royal Australian Navy from the 1890s to the 1920s
  * P-class destroyer, a class of 8 Royal Navy destroyers built during World War II
  * P-class sloop, operated by the British navy during World War I
  * P-class submarine (disambiguation), a number of submarine classes
  * P-class sailing dinghy, a New Zealand sailing dinghy design first created in the 1920s, popularly used for sail training
  * P-class yacht (Universal Rule), a development class for America's Cup racing yachts under the Universal Rule
  
  ## Railway locomotives
  
  * Two classes of steam locomotives used by the New Zealand Railways Department:
     * NZR P class (1876), of 1876
     * NZR P class (1885), of 1885
  * WAGR P Class, a 1924 express steam-locomotive of the Western Australian Government Railways
  * V/Line P class, a type of diesel electric locomotive, in service with V/Line and Pacific National in Australia
  * SECR P class, a class of locomotives of the South Eastern and Chatham Railway in the UK
  * DSB class P, a class of steam locomotives of the Danish State Railways
  * NER Class P, a class of steam locomotives of the North Eastern Railway
  * Palestine Railways P class
  