| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 09/06/1988 | US4768737 Helicopter control system |
| 08/31/1988 | EP0279935A2 Suspension system for the propulsion unit of a helicopter |
| 08/30/1988 | US4766984 Nonlinear vibration absorber |
| 08/24/1988 | EP0279391A2 Robotic or remotely controlled flying platform |
| 08/23/1988 | US4765758 Laminated bearing |
| 08/23/1988 | US4765567 Helicopter target |
| 08/23/1988 | CA1241095A1 Warning device for helicopters |
| 08/17/1988 | CN87100542A 模型直升机 Model helicopter |
| 08/11/1988 | DE3703019A1 Safety device for a hydraulic regulating device for an aircraft part to be moved |
| 08/11/1988 | DE3703004A1 Hydraulic servo regulating device for a movable part of an aircraft |
| 08/03/1988 | EP0277021A2 Improvements in aircraft |
| 08/03/1988 | EP0276945A2 Link-type rotary coupling |
| 08/02/1988 | CA1240048A1 Helicopter weight and torque advisory system |
| 07/28/1988 | DE3701097A1 Rotor, especially of a rotary-wing aircraft |
| 07/26/1988 | US4759689 Bladed aircraft rotor with flexible blade mountings |
| 07/26/1988 | US4759514 Tail rotor yaw position control for a helicopter |
| 07/20/1988 | EP0275056A2 Foil flap adjustment device for wing airfoils |
| 07/20/1988 | CN87107423A Flying object for collecting solar rays |
| 07/14/1988 | WO1988005009A1 Torque equalizer for contrarotary shafts |
| 07/05/1988 | US4755106 Balance-bar hub for a twin blade rotor |
| 07/05/1988 | US4754958 Motion snubber |
| 06/23/1988 | DE3643520A1 Rotor, especially for rotary-wing aircraft |
| 06/22/1988 | EP0272058A2 Helicopter flight control systems |
| 06/07/1988 | US4749339 Integrater hub-mast and gyroplane rotor head comprising it |
| 05/25/1988 | EP0267980A1 Method of fabricating a rotor hub of composite material |
| 05/24/1988 | US4746272 Lobed composite flexbeam |
| 05/17/1988 | US4744728 Helicopter blade airfoil |
| 05/10/1988 | US4742998 Viscous damper |
| 05/10/1988 | CA1236444A1 Helicopter antitorque auxiliary propulsion system |
| 05/04/1988 | EP0266263A1 Aerial propellers, in particular for aircraft propulsion |
| 05/03/1988 | US4741672 Collective pitch change system for teter-bar type gyroplane rotary wing aircraft |
| 05/03/1988 | US4741671 Metal hub for a helicopter rotor |
| 05/03/1988 | US4741501 Preventing augmenting vertical load induced oscillations in a helicopter |
| 04/27/1988 | CN87106536A Domestic aeroplane with multiple rotary-wings |
| 04/26/1988 | CA1235680A1 Hubless, hingeless and bearingless helicopter rotor system |
| 04/19/1988 | US4738592 Cam assisted blade folding system |
| 04/19/1988 | CA1235392A1 Aerial load-lifting system |
| 04/12/1988 | US4737075 Flapping stop device for a gyroplane rotor |
| 04/12/1988 | US4736906 Method of securely lifting a load |
| 03/30/1988 | EP0262071A1 Helicopter blade airfoil |
| 03/29/1988 | US4734081 Constant velocity elastomeric bearing joint |
| 03/23/1988 | EP0261056A2 Collective control system for a helicopter |
| 03/22/1988 | US4732542 Large airfoil structure and method for its manufacture |
| 03/22/1988 | US4732540 Integrated hub-mast and gyroplane rotor head comprising it |
| 03/17/1988 | DE3704552C1 Rotor blade, especially of a rotary wing aircraft |
| 03/15/1988 | US4730795 Heliplane |
| 03/08/1988 | US4729753 Constant velocity elastomeric bearing joint |
| 02/24/1988 | EP0256916A1 Composite blade with a double spar and torsional box and with a honeycomb sandwich layered coating, and production process |
| 02/23/1988 | US4727251 Detector for helicopter blade crack indicator |
| 02/23/1988 | US4726736 Drag operated rotor pitch adjustment system for gyroplanes |
| 02/23/1988 | US4726547 Helicopter with high forward speed |
| 02/11/1988 | WO1988000899A1 Heli-hover amphibious surface effect vehicle |
| 02/11/1988 | WO1988000898A1 Heli-hover amphibious aircraft |
| 02/10/1988 | EP0157875B1 Position and control system for helicopter blade actuation |
| 01/27/1988 | EP0254605A1 Directional and stabilizing device with a tilted shrouded tail rotor and "V" shaped asymmetric tail unit, and helicopter so equipped |
| 01/27/1988 | EP0253875A1 Bladed aircraft rotor with flexible blade mountings |
| 01/27/1988 | EP0140914B1 Air jet reaction contrarotating rotor gyrodyne |
| 01/19/1988 | US4720060 Anti-resonant suspension device having six degrees of freedom for a helicopter |
| 01/19/1988 | US4720059 High speed helicopter |
| 01/07/1988 | EP0250555A1 Helicopter antitorque auxiliary propulsion system |
| 01/07/1988 | EP0250473A1 Device for producing a forward drive force. |
| 12/23/1987 | EP0250135A2 Helicopter rotor control systems |
| 12/23/1987 | EP0249848A1 System for the determination of the flying speed of a helicopter |
| 12/23/1987 | DE3620794A1 Control device for rotor blade adjustment, especially of a rotary wing aircraft |
| 12/22/1987 | US4714450 Elastomeric high torque, constant velocity joint |
| 12/22/1987 | US4714409 Helicopter rotor |
| 12/15/1987 | US4712978 Helicopter blade and the like stand-off and folding device |
| 12/08/1987 | US4711415 X-wing helicopter-scout attack configuration |
| 12/01/1987 | US4709882 Having a lithium-hydrogen peroxide fuel cell |
| 11/24/1987 | US4708591 Bladed aircraft rotor with flexible blade mountings |
| 11/24/1987 | US4708305 Helicopter anti-torque system using fuselage strakes |
| 11/12/1987 | DE3615191A1 Nozzle air (jet air) water propeller |
| 11/03/1987 | US4703906 Airborne craft with an inclinable upper structure |
| 10/29/1987 | DE3614371A1 Device for controlling rotor blades |
| 10/27/1987 | US4702437 Electric air-driven helicopter |
| 10/22/1987 | DE3712705A1 Erosionsschild fuer die oberflaeche von tragflaechen sowie verfahren zur herstellung derartiger erosionsschilder Erosion shield for the surface 'of wings, and process for manufacture of such erosion signs |
| 10/13/1987 | US4699043 Redundant servoactuator unit particularly to operate the flight control mechanisms in aircraft |
| 10/06/1987 | US4697986 Helicopter blade cyclic pitch control system |
| 10/06/1987 | CA1227780A1 Compound helicopter and powerplant therefor |
| 09/30/1987 | EP0238588A1 Aircraft with rotary wings. |
| 09/29/1987 | US4696623 Helicopter rotor blade made from a multispar composite material with torsion compartments and a process for manufacturing same |
| 09/29/1987 | US4696445 Collective control system for a helicopter |
| 09/29/1987 | CA1227330A1 Position detector |
| 09/23/1987 | EP0237772A1 Balancing device for a rotor blade |
| 09/22/1987 | US4695341 Filament wound structure for use as a torque drive |
| 09/22/1987 | US4695340 Filament wound structure having filament wound reinforcing rings for use as a torque drive |
| 09/22/1987 | US4695227 All composite, constant speed universal joint for use in a shaft driven tiltable main rotor for a helicopter |
| 09/22/1987 | US4695226 Helicopter rotor backup damper system |
| 09/22/1987 | US4695013 Landing aid |
| 09/22/1987 | US4695012 Aerial load-lifting system |
| 09/08/1987 | US4691878 Tilt-rotor wing fold mechanism and method |
| 09/08/1987 | US4691877 Compound helicopter and powerplant therefor |
| 09/03/1987 | DE3606362A1 Annular wing for a flying disc |
| 09/02/1987 | EP0234821A2 Detector for cracks in hollow blades |
| 09/02/1987 | EP0234058A1 Gear unit, particularly for use in a helicopter |
| 09/01/1987 | US4690616 Rotor structure, especially for rotary wing aircraft |
| 09/01/1987 | US4690615 Rotor, especially for rotary wing aircraft |
| 08/26/1987 | EP0233792A1 Elastic return strut with a built-in hydro-elastic damper |
| 08/25/1987 | US4688993 Tangential link swashplate centering member |
| 08/25/1987 | US4688743 Aircraft with a retractable variable pitch propeller or a fluid motor driven multi propeller aircraft |