Evergreen 747 Supertanker | Wikipedia audio article
Channel: wikipedia tts
Date: 03/06/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/747_Supertanker


00:02:18 1 Development
00:04:00 2 Design
00:05:44 2.1 Operation
00:09:59 3 Evergreen financial difficulties



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Voice name: en-US-Wavenet-C


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SUMMARY
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The 747 Supertanker is one of several aerial firefighting airtankers derived from various Boeing 747 models. The aircraft are rated to carry up to 18,600 US gallons (70,000 L) of fire retardant or water. They are the largest aerial firefighting aircraft in the world.Initially developed by Evergreen International Aviation, the first Supertanker was based on a 747-200 (N470EV, tanker/tail number 947), and never entered service. The second Supertanker (N479EV, tanker/tail number 979) was based on a 747-100 originally manufactured by Boeing in 1971 for Delta Air Lines.  It entered service for the first time in 2009, fighting a fire in Cuenca, Spain, and made its first American operation on August 31, 2009 at the Oak Glen Fire in California. It is no longer in service. 
The third 747 Supertanker was developed by Global Supertanker Services which acquired most of Evergreen's assets. The Global Supertanker (N744ST, tanker/tail number 944) is a Boeing 747-400 dubbed the Spirit of John Muir. It was certified for firefighting flights by the Federal Aviation Administration in September 2016 and fought fires in Chile and Israel before being contracted by U.S. officials to fight California wildfires in 2017.