# Helicopter performance improvement by variable rotor speed and variable blade twist

> Research article (Aerospace Science and Technology, 2016) · cited 45× · AI/ML

**Wikidata**: [openalex:W2340621673](https://www.wikidata.org/wiki/openalex:W2340621673)  
**Source**: https://4ort.xyz/entity/helicopter-performance-improvement-by-variable-rotor-speed-and-variable-blade-twist