Answer the following question: Information: - The Turbomeca Astazou is a highly successful series of turboprop and turboshaft engines, first run in 1957. The original version weighed and developed at 40,000 rpm. It was admitted for aviation service on May 29, 1961 after a 150-hour test run. The main developing engineer was G. Sporer. It was named after two summits of the Pyrenees. - The Agusta A.115 ( registration I - AGUC ) was a prototype helicopter flown in 1961 in Italy . It was essentially a Bell 47J - 3 with an unclad , tubular tail boom , and powered by a Turbomeca Astazou II turboshaft engine . No production ensued . - A turboprop engine is a turbine engine that drives an aircraft propeller. In contrast to a turbojet, the engine's exhaust gases do not contain enough energy to create significant thrust, since almost all of the engine's power is used to drive the propeller. - A turboshaft engine is a form of gas turbine which is optimized to produce shaft power rather than jet thrust. - The Pyrenees (, , , , or ) is a range of mountains in southwest Europe that forms a natural border between France and Spain. Reaching a height of altitude at the peak of Aneto, the range separates the Iberian Peninsula from the rest of continental Europe, and extends for about from the Bay of Biscay (Cap Higuer) to the Mediterranean Sea (Cap de Creus). After reading the paragraphs above, we are interested in knowing the entity with which 'agusta a.115' exhibits the relationship of 'subclass of'. Find the answer from the choices below. Choices: - aircraft - aviation - border - cap - energy - engine - range - series - service - test - turbine - turbojet - turboprop - turboshaft
Answer:
aircraft