| Patents for B64C 11 - Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (3,644) |
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| 08/28/2013 | CN102666271B 流体涡轮机转子叶片 Fluid turbine rotor blades |
| 08/27/2013 | US8517682 Wind turbine blade |
| 08/27/2013 | CA2804680A1 Rotor blade, rotor, aircraft and process |
| 08/24/2013 | CA2807019A1 System and method for automation of rotorcraft entry into autorotation and maintenance of stabilized autorotation |
| 08/24/2013 | CA2806277A1 Offset stacked yoke hub for tiltrotor aircraft |
| 08/21/2013 | EP2627809A2 Method for producing a fibrous metal structure by means of weaving |
| 08/21/2013 | EP2627559A1 Aircraft propeller balancing system |
| 08/21/2013 | CN203143003U Resistance-reducing noise-lowering device and propeller utilizing same |
| 08/21/2013 | CN103253367A Composite material air propeller and preparation die and preparation method thereof |
| 08/21/2013 | CA2805889A1 Compact rotorcraft dual-element spherical elastomeric centrifugal-force bearing assembly |
| 08/21/2013 | CA2805485A1 Coaxial counter-rotating rotor system |
| 08/21/2013 | CA2805481A1 Hub assembly with centrifugal and radial bearings |
| 08/20/2013 | US8513826 Wind turbine |
| 08/20/2013 | US8510947 Turbine blade fabrication |
| 08/20/2013 | CA2806275A1 Pitch link alignment tool |
| 08/15/2013 | US20130209260 Gas turbine engine rotor balancing |
| 08/14/2013 | CN203127131U Cohesion ring propeller |
| 08/14/2013 | CN103241367A Aircraft rotor blade and relative forming method |
| 08/13/2013 | US8506265 Electric fan with multiple selection of oscillating angles |
| 08/09/2013 | CA2803705A1 System and method of actuating a swashplate for main rotor control |
| 08/08/2013 | WO2012066262A3 Blade for a turbine engine propeller |
| 08/08/2013 | US20130202440 Segmented rings with captive nuts for fan bolts |
| 08/08/2013 | US20130202434 Methods and Apparatuses for Non-Model Based Control for Counter-Rotating Open-Rotor Gas Turbine Engine |
| 08/07/2013 | EP2623712A2 Method and apparatus for model based control for counter-rotating open-rotor gas turbine engine |
| 08/07/2013 | EP2623711A2 Method and apparatus for non-model based control for counter-rotating open-rotor gas turbine engine |
| 08/07/2013 | EP2622228A1 Hydraulic device of a control device, such as a blade pitch-change device |
| 08/07/2013 | EP2622179A1 Hydraulic system for fan pitch change actuation of counter-rotating propellers |
| 08/07/2013 | CN101903240B Rotor blade and method of making same |
| 08/06/2013 | US8500411 Turbine airfoil with outer wall thickness indicators |
| 08/03/2013 | CA2804108A1 Fastening system for fan and shaft interconnection |
| 08/02/2013 | CA2803711A1 Segmented rings with captive nuts for fan bolts |
| 08/01/2013 | WO2013110895A1 Method for producing a propeller blade from a composite material |
| 08/01/2013 | WO2009102227A3 The direction acceleration principle, the direction acceleration devices and the direction acceleration devices systems |
| 08/01/2013 | US20130195659 Ornithopter aircraft transmission |
| 08/01/2013 | CA2803434A1 Optimized core for a structural assembly |
| 07/31/2013 | CN203094440U Non-coaxial multi-rotor wing air vehicle |
| 07/31/2013 | CN103228933A Hydraulic device of control device, such as blade pitch-change device |
| 07/30/2013 | US8497029 Wetting resistant materials and articles made therewith |
| 07/30/2013 | US8496436 Torque compensation for propeller pitch change mechanism |
| 07/25/2013 | WO2013109711A1 Thin airfoil ceiling fan blade |
| 07/25/2013 | US20130189097 Turbomachine including a blade tuning system |
| 07/24/2013 | CN103221643A Turboprop provided with a blade-positioning device |
| 07/24/2013 | CN103213672A Helicopter and airplane driven by screw propeller |
| 07/24/2013 | CN103213671A Wear-resistant screw propeller |
| 07/23/2013 | US8491263 Turbine blade with cooling and sealing |
| 07/17/2013 | CN103209890A Composite rotor blade having weighted material for mass balancing |
| 07/17/2013 | CN103204237A Aerial propelling device suitable for amphibious unmanned aerial vehicle |
| 07/17/2013 | CN102001440B Multi-stage powerful fan and vertical takeoff and landing aircraft |
| 07/10/2013 | EP2613033A2 Magnetically coupled contra-rotating propulsion stages |
| 07/09/2013 | US8480372 System and method for reducing bucket tip losses |
| 07/09/2013 | US8480364 Computer system and program product for controlling vibrations |
| 07/04/2013 | WO2013098736A2 A four-rotor helicopter |
| 06/28/2013 | CA2800439A1 Adjustable pitch link |
| 06/28/2013 | CA2794077A1 Electrical powered tail rotor of a helicopter |
| 06/27/2013 | WO2013066477A3 System for aligning a propeller |
| 06/27/2013 | WO2013066475A3 System for protecting a rotatable shaft of a motor from excessive bending moments |
| 06/26/2013 | EP2607231A2 Airfoils including tip profile for noise reduction and method for fabricating same |
| 06/26/2013 | CN103171760A Vertical lifting airphibian vehicle propeller variable pitch device |
| 06/26/2013 | CN103171759A Hub assembly with grease lubricated roller bearing and tension-torsion strap |
| 06/26/2013 | CA2799697A1 Hub assembly with grease lubricated roller bearing and tension-torsion strap |
| 06/25/2013 | US8470460 Multilayer thermal barrier coatings |
| 06/25/2013 | US8469668 Hydraulically controlled variable pitch propeller |
| 06/23/2013 | CA2798754A1 Airfoils including compliant tip |
| 06/19/2013 | EP2604520A1 Multiple-yoke main rotor assembly |
| 06/19/2013 | EP2604513A1 Blade-pitch control system with feedback lever |
| 06/19/2013 | CN203005000U Power system of aerocar |
| 06/18/2013 | US8465258 Platform seal in a turbomachine rotor, method for improving the seal between a platform and a turbomachine blade |
| 06/18/2013 | US8465252 Turbine engine rotating cavity anti-vortex cascade |
| 06/14/2013 | CA2794805A1 Blade-pitch control system with feedback lever |
| 06/13/2013 | CA2794228A1 Multiple-yoke main rotor assembly |
| 06/12/2013 | CN103154343A Method for producing a fibrous metal structure by means of weaving |
| 06/12/2013 | CN101978150B System of counter-rotating propellers with a feathering device for propeller blades |
| 06/11/2013 | US8459950 Contra-rotating propeller unit, method for assembly thereof, method for transportation thereof, and method for mounting thereof on mother ship |
| 06/11/2013 | US8459948 Retractable composite rotor blade assembly |
| 06/09/2013 | CA2798339A1 Preventing rotation of a fixed ring of a swashplate |
| 06/05/2013 | EP2599717A1 Rotor blade |
| 06/05/2013 | EP2599715A1 Propeller blade with lightweight insert |
| 06/05/2013 | EP2599714A1 Propeller blade having compliant adhesive at spar interface |
| 06/05/2013 | EP2599713A1 Propeller blade having a honeycomb spar core |
| 06/04/2013 | US8454318 Reinforced aerodynamic profile |
| 05/30/2013 | WO2013076431A1 Rotary mechanical system with contactless actuation |
| 05/30/2013 | CA2854991A1 Rotary mechanical system with contactless actuation |
| 05/29/2013 | EP2597033A2 Composite propeller spar |
| 05/29/2013 | EP2596247A1 Turbine engine having two unducted propellers |
| 05/28/2013 | US8449994 Turbine engine components |
| 05/28/2013 | US8449263 Segmented rotor hub assembly |
| 05/28/2013 | CA2564376C Process and device for the phase synchronization of propellers on a multi-engine aircraft |
| 05/23/2013 | WO2013074545A1 Methods and apparatus for vertical/short takeoff and landing |
| 05/23/2013 | DE102011055515A1 Propelleranordnung, insbesondere für Wasserfahrzeuge Propeller arrangement, especially for watercraft |
| 05/22/2013 | CN103119250A Hydraulic system for fan pitch change actuation of counter-rotating propellers |
| 05/22/2013 | CN103112587A 飞行器 Aircraft |
| 05/21/2013 | US8444388 System of counter-rotating propellers with a feathering device for propeller blades |
| 05/21/2013 | CA2719052C Directionally controllable flying vehicle and a propeller mechanism for accomplishing the same |
| 05/16/2013 | US20130121827 Dual Mode Rotor Hub Assembly |
| 05/16/2013 | US20130119193 Method and device for the lateral stabilization of an aircraft |
| 05/16/2013 | CA2794039A1 Dual mode rotor hub assembly |
| 05/15/2013 | EP2591238A1 Axial displacement and rotational speed monitoring |
| 05/15/2013 | CN103101613A Resistance reduction and noise protection device and spiral blade using same |
| 05/14/2013 | US8442740 Passing from a non-synchronized state between an engine and a rotor to a synchronized state |
| 05/14/2013 | US8438829 Turboprop propulsion unit with pusher propeller |