| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 07/04/1989 | US4843814 Assembly for producing a propulsive force |
| 06/28/1989 | EP0321876A2 Control system for helicopters |
| 06/28/1989 | EP0321671A2 Clutch |
| 06/21/1989 | EP0321336A1 Individual hydraulic rotor blade pitch control, rotor hub and rotor provided with it |
| 06/20/1989 | US4840330 Suspension system for a drive assembly of a helicopter |
| 06/07/1989 | EP0318477A1 Improvements to vertical take-off aircraft. |
| 06/06/1989 | CA1255278A1 Device incorporating retractable stops for limiting the flappings of the blades of the main rotor of a rotorcraft |
| 05/31/1989 | EP0317554A1 Steering aid for rotor aircraft. |
| 05/30/1989 | US4834318 Helicopter flight control systems |
| 05/18/1989 | WO1989004276A1 Device for cyclic variation of the blade geometry of high-speed helicopters |
| 05/17/1989 | EP0315962A2 System for damping lead-lag motion of rotor blades of helicopter |
| 05/16/1989 | US4830574 Airfoiled blade |
| 05/09/1989 | US4828458 Auxiliary helicopter rotor |
| 05/09/1989 | US4828205 Device for carrying and lifting loads and moving same by aerodynamic lifting |
| 05/03/1989 | EP0314568A1 High by-pass turbo-fan jet engine for aircraft and assembly beneath the wing |
| 05/03/1989 | DE3734592A1 Damping device for a rotor blade |
| 05/02/1989 | US4826103 Active cable-cutting assembly for aircraft |
| 05/02/1989 | CA1253479A2 Compound helicopter and power plant therefor |
| 05/02/1989 | CA1253478A1 Compound helicopter and powerplant therefor |
| 04/27/1989 | DE3729149A1 Rotary-wing aircraft and hang glider |
| 04/25/1989 | US4824326 Autogyro |
| 04/20/1989 | DE3730801A1 Rotor design for helicopters having intermeshing rotors on vertical, parallel axes (shafts) |
| 04/19/1989 | EP0113363B1 Helicopter |
| 04/18/1989 | US4822245 Torsible, flexible linking arm with integrated flexion damping, in particular for linking a rotor blade to its hub, and rotor and hub equipped with such arms |
| 04/11/1989 | US4819896 Hand-operated aircraft control system |
| 04/04/1989 | US4819182 Method and apparatus for reducing vibration of a helicopter fuselage |
| 04/04/1989 | US4818179 Composite helicopter rotor hub |
| 03/28/1989 | US4815937 Combined bearing device for a rotorcraft rotor and a rotor equipped with such a bearing device |
| 03/16/1989 | DE3729231A1 VTOL (vertical take-off and landing) aircraft |
| 03/15/1989 | EP0307288A1 Connection device provided with bushes and rotor blade connected to a hub with it |
| 03/15/1989 | EP0306499A1 Torque equalizer for contrarotary shafts |
| 03/14/1989 | US4812643 Detector device for a blade tracking system having two sensors |
| 03/14/1989 | US4811921 Cyclic control stick |
| 03/14/1989 | US4811627 Main transmission gearbox for a twin-engined helicopter |
| 03/09/1989 | WO1989001896A1 Method and apparatus for reducing vibration over the full operating range of a rotor and a host device |
| 03/08/1989 | EP0306027A2 Laminated bearing |
| 03/08/1989 | CN1031509A Reciprocating symmetric propeller aerobat |
| 03/07/1989 | US4809931 Directional and stabilizing device having a faired and slanted antitorque rotor and a disymmetric "V" empennage, and a helicopter equipped with such a device |
| 03/07/1989 | US4809930 Helicopter |
| 02/28/1989 | US4808075 Helicopter rotor |
| 02/28/1989 | US4808072 Electrical grounding connector for a helicoptor rotor |
| 02/21/1989 | US4806077 Composite material blade with twin longeron and twin box structure having laminated honeycomb sandwich coverings and a method of manufacturing same |
| 02/21/1989 | US4805850 Helicopter rotor control systems |
| 02/16/1989 | DE3726069A1 Framework |
| 02/14/1989 | US4804352 Link-type rotary coupling |
| 02/14/1989 | US4804315 Composite helicopter swashplate |
| 02/08/1989 | CN1030893A Composite helicopter swashplate |
| 02/01/1989 | EP0301995A2 Composite helicopter rotor hub |
| 02/01/1989 | EP0301994A2 Composite helicopter swashplate |
| 01/31/1989 | US4801110 For generating flight path control signals for an aircraft |
| 01/24/1989 | US4799859 Circulation control for rotor system |
| 01/24/1989 | US4799629 Flying object for collecting solar rays |
| 01/17/1989 | CA1249007A1 Bearing sound isolating |
| 01/11/1989 | EP0298826A1 Blade with bent tip for rotor craft |
| 01/10/1989 | US4797064 Composite helicopter rotor hub |
| 01/10/1989 | US4796873 Active vibration isolation system |
| 01/03/1989 | US4795310 Helicopter rotor system and method |
| 01/03/1989 | US4795111 Robotic or remotely controlled flying platform |
| 01/03/1989 | CA1248216A1 Active vibration isolation system |
| 12/28/1988 | EP0296964A1 Composite blade with structural core and shaped outer layer and its process of manufacture |
| 12/28/1988 | CN88103525A Blade of composite materials and its manufacturing process |
| 12/28/1988 | CN87104706A Perfectionnement aux aeronefs decollage |
| 12/27/1988 | US4793572 Vertical launch and hovering space shuttle |
| 12/21/1988 | EP0296014A1 Composite blade and its manufacturing procedure |
| 12/21/1988 | EP0237772B1 Balancing device for a rotor blade |
| 12/20/1988 | US4792280 Helicopter rotor flexbeam |
| 12/15/1988 | WO1988009747A1 Steering aid for rotor aircraft |
| 12/15/1988 | WO1988009746A1 Improvements to vertical take-off aircraft |
| 12/13/1988 | US4790725 Aerial propellers more especially for aircraft propulsive units |
| 12/13/1988 | CA1246717A1 Rotorcraft load factor enhancer |
| 12/13/1988 | CA1246349A1 Elastomeric high torque constant velocity joint |
| 12/07/1988 | EP0294289A1 Flexbeam with integrated damper, hub and rotor supplied with it |
| 12/06/1988 | US4789416 Forming layup of firber reinforced multiple impregnated composite strip laminations; cold compacting or coining |
| 12/06/1988 | US4789305 Self-feathering rotary wing |
| 12/06/1988 | US4789115 Vertical take-off and landing capability |
| 12/06/1988 | CA1246041A1 Nodalized rotor |
| 11/30/1988 | EP0293173A2 Rotor arrangement for a rotorcraft |
| 11/29/1988 | US4787573 Aircraft with rotary wings |
| 11/22/1988 | US4786236 Rotor, especially for rotary wing aircraft |
| 11/22/1988 | US4785710 Helicopter |
| 11/15/1988 | CA1244970A1 Detector for helicopter blade crack indicator |
| 11/09/1988 | EP0289671A1 Aircraft |
| 11/08/1988 | US4783023 Helicopter rotor speed changing transmission |
| 11/03/1988 | WO1988008392A1 Power-driven rotor for apparatus with rotary sails, such as helicopters |
| 11/02/1988 | EP0289374A1 Combined bearing device for a rotorcraft rotor, and rotor equipped with such a rotor device |
| 11/02/1988 | EP0288957A2 Helicopter rotor flexbeam |
| 11/02/1988 | CN87202099U Air floating machine |
| 11/01/1988 | CA1243993A1 Helicopter rotor blade |
| 10/25/1988 | US4780838 Helicopter weight and torque advisory system |
| 10/18/1988 | US4778343 Rotor structure, especially for a rotary wing aircraft |
| 10/18/1988 | US4778340 Main helicopter rotor |
| 10/11/1988 | US4776531 High lift, low pitching moment airfoils |
| 10/11/1988 | US4776076 Helicopter rotor system |
| 09/21/1988 | EP0282784A2 Gas turbine installation for helicopters |
| 09/20/1988 | US4771967 Rotor aircraft |
| 09/15/1988 | DE3735918A1 Flap system |
| 09/15/1988 | DE3707333A1 Rotor, especially of a rotary wing aircraft |
| 09/13/1988 | US4770607 Rotor blade construction for circulation control aircraft |
| 09/13/1988 | US4770375 Pitch apparatus |
| 09/13/1988 | US4770371 Fluid motor driven multi propeller aircraft |