The Toroidal Propeller — A Quiet, Closed-Form Drone Propeller Design
The toroidal propeller allows a small multirotor unpiloted aircraft, or drone, to operate more quietly than current drones. By enabling a drone that is less of an acoustic annoyance, this propeller may accelerate the acceptance of such aircraft for a wide range of uses — learn what kind in this video.
More From SAE Media Group
Motion Design INSIDER
Plane Flies with No Moving Parts
Aerospace INSIDER
Aircraft with Hybrid Engine Can Recharge in Flight
Motion Control and Automation Technology INSIDER
NASA Demonstrates Aircraft Electric Propulsion
Tech Briefs
Multirotor Aircraft Noise Reduction
NASA Spinoff
Swinging the HAMR
Motion Design INSIDER
Self-Latching Piezocomposite Actuator
Motion Design INSIDER
Extending Quadcopter Flight Time — By Adding Wings
Aerospace INSIDER
Fly-by-Wire Inceptor Developed for eVTOL Aircraft
Motion Design INSIDER
Tailless Jet Flies Free with Novel Control Technique
Aerospace & Defense Tech Briefs
Small UAV Satcom System
Tech Briefs
Solid Rocket Motor Factory in a Box
Aerospace INSIDER
New DARPA X-Plane Will Have No Moving Control Surfaces
Aerospace & Defense Tech Briefs
Unmanned Helicopter Drone
Aerospace & Defense Tech Briefs
UAV Turbines Designs Purpose-Built Microturbine Engine for Class 3 and 4 UAVs
Motion Design INSIDER
Megawatt Electrical Motor Could Help Electrify Aviation
Aerospace & Defense Tech Briefs
Fabrication and Testing of High-Speed Single-Rotor and Compound-Rotor Systems
Motion Design INSIDER
Aerial Robot Morphs in Flight
Aerospace & Defense Tech Briefs
Custom Flexible Shafts
