Civilný vrtuľník – Duke University Helicopter Observational Platform (HOP)

Pozri si video: Civilný vrtuľník – Duke University Helicopter Observational Platform (HOP) – Duke University Helicopter Observational Platform (HOP)

Charakteristika a popis videa: Duke University Helicopter Observational Platform (HOP) – Pratt School of Engineering’s Civil and Environmental Engineering Department Professor Roni Avissar and his helicopter-based research.