Each application (the specific engine and airframe combination) then receives a "list number" that contains a list of the specific parts and flow sheet for that application. Needless to say, there are hundreds of parts list and flow sheets in the master catalog. Generally, the PS style carburetors are used on opposed piston engines found on light aircraft and helicopters. The engine can be mounted in the nose, tail, wing or mounted internally on the airframe. The engine can be mounted vertically as well as horizontally. PD style carburetors are for inline and radial engines from 900 to 1900 cubic inches. PT style carburetors are usually found on 1700 to 2600 cubic inch engines  PR style carburetors are used on 2600 to 4360 cubic inch engines      Marrgu language  Marrgu (Marrku) is a recently extinct Aboriginal language of northern Australia. Additional names include "Ajokoot", "Croker Island", "Raffles Bay", "Terrutong" ("Terutong"), "Yaako" ("Jaako, Yako"). Marrgu had been assumed to be an Iwaidjan language like its neighbours. However, Evans (2006) has produced evidence that it was a language isolate, with possible connection to the extinct and poorly attested Wurrugu. Marrgu had the three-vowel ( /a/, /i/, /u/) system typical of Iwaidjan languages (Evans 1998). Congresox  Congresox is a genus of eels in the pike conger family, Muraenesocidae. It currently contains these species:      Maung language  Maung (Mawung, Mawng, Gun-marung) is an Australian aboriginal language spoken by the Maung people on the Goulburn Islands, off the north coast of Arnhem Land, in the Northern Territory of Australia. Maung is closely related to Iwaidja language which occupies the northwestern corner of the opposite mainland. This is a language that belongs to the Iwaidjan language family of Non-Pama–Nyungan languages. As of 2016, there were 370 speakers of the language. Study of Maung has developed to the point where a dictionary, grammar and portions of the Bible are available. Maung is taught in local schools alongside English and other languages such as Iwaidja or Kunwinjku. Children are still acquiring it as a first language, making it somewhat healthier than most other aboriginal languages.