Matches in DBpedia 2015-10 for { ?s ?p "The Sikorsky S-75 was a proof of concept all-composite helicopter. Composite materials were used to replace metal to provide greater strength, lighter weight, lower manufacturing costs, and reduce maintenance costs."@en }
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- Sikorsky_S-75 abstract "The Sikorsky S-75 was a proof of concept all-composite helicopter. Composite materials were used to replace metal to provide greater strength, lighter weight, lower manufacturing costs, and reduce maintenance costs.".
- Sikorsky_S-75 comment "The Sikorsky S-75 was a proof of concept all-composite helicopter. Composite materials were used to replace metal to provide greater strength, lighter weight, lower manufacturing costs, and reduce maintenance costs.".