Intermeshing Helicopter Rotors with Swashplate Control

Synchropter helicopter, also called an intermeshing, or intermesher helicopter 0:00 Scene 1 0:42 Scene 2 1:16 Scene 3 1:49 Scene 4 2:26 Scene 5 Most intermeshing helicopter designs are two bladed (two blades on each mast) such as the Flettner 282 Kolibri and Kaman's K-1200 Kmax and H-43 Huskie. But the first US designed intermeshers were three-blade designs; these were the Kellett XR-8 and XR-10.