# Combined passive and active helicopter main rotor morphing for helicopter energy save

> Research article (Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2015) · cited 37× · AI/ML

**Wikidata**: [openalex:W2205813039](https://www.wikidata.org/wiki/openalex:W2205813039)  
**Source**: https://4ort.xyz/entity/combined-passive-and-active-helicopter-main-rotor-morphing-for-helicopter-energy-save