| Patents for B64C 11 - Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (3,644) |
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| 05/11/1988 | EP0266954A2 Twisted hollow airfoil with non-twisted internal support ribs |
| 05/11/1988 | EP0266802A2 Ducted propeller |
| 05/10/1988 | US4743163 Ram air turbine control system |
| 05/04/1988 | EP0266298A2 Reduced loss swept supersonic fan blade |
| 05/04/1988 | EP0266263A1 Aerial propellers, in particular for aircraft propulsion |
| 04/27/1988 | EP0265335A1 Propellers, in particular for aircraft propulsion units |
| 04/19/1988 | US4738591 Gas turbine engine |
| 04/19/1988 | US4738590 Blade pitch varying mechanism |
| 04/19/1988 | US4738589 Propeller module for an aero gas turbine engine |
| 03/15/1988 | US4730985 Prop-fan with improved stability |
| 03/02/1988 | CN86105499A Supersonic propeller |
| 03/01/1988 | US4728263 Wind turbine blade construction |
| 03/01/1988 | US4728262 Erosion resistant propellers |
| 03/01/1988 | US4728261 Propeller module for an aero gas turbine engine |
| 02/25/1988 | DE3628208A1 Blade-root connection of a fixed multi-blade propeller |
| 02/23/1988 | US4726737 Reduced loss swept supersonic fan blade |
| 02/11/1988 | DE3626975A1 Propeller for aircraft |
| 02/10/1988 | EP0157875B1 Position and control system for helicopter blade actuation |
| 01/13/1988 | EP0252647A1 Aircraft cabin noise control apparatus |
| 01/12/1988 | US4718823 Pitch changing mechanism for fan blades |
| 01/07/1988 | DE3621783A1 Propeller (airscrew) whose boundary layer is influenced by the energy of the exhaust gas from the propulsion machine |
| 01/05/1988 | US4717312 Variable-pitch bladed rotors |
| 01/05/1988 | CA1231132A1 Propeller actuation system |
| 12/30/1987 | WO1987007974A1 Aircraft cabin noise control apparatus |
| 12/23/1987 | EP0250062A2 Propeller blade |
| 12/08/1987 | US4711615 Turboprop overspeed protection system |
| 12/02/1987 | EP0247176A1 Ram air turbine control system |
| 12/01/1987 | CA1229765A1 Fluid contacting surfaces and devices incorporating such surfaces |
| 11/03/1987 | US4704067 Helicoidal propeller pitch control mechanism |
| 11/03/1987 | US4703906 Airborne craft with an inclinable upper structure |
| 10/13/1987 | US4699568 Aircraft propeller with improved spinner assembly |
| 09/29/1987 | CA1227386A1 Engine speed control in propeller pitch control systems |
| 09/08/1987 | US4692093 Ram air turbine |
| 09/01/1987 | US4690614 Torque meter |
| 08/26/1987 | EP0233501A2 Configuration of propellers, shrouded propellers and/or fans to decrease the noise of and the cyclic loads on the blades |
| 08/25/1987 | US4688995 Propeller module for an aero gas turbine engine |
| 08/25/1987 | US4688743 Aircraft with a retractable variable pitch propeller or a fluid motor driven multi propeller aircraft |
| 08/18/1987 | US4687416 Method and device for decreasing the flow resistance on wings particularly aerofoils and blades of turbomachines exposed to gas flux such as air |
| 08/11/1987 | US4685864 Hollow aerofoil blade |
| 07/30/1987 | WO1987004400A1 Device at members forming part of a turbo machinery and a method of producing such members |
| 07/07/1987 | US4678402 Variable pitch propeller |
| 07/07/1987 | CA1223854A1 Rotational wake reaction steps for foils |
| 07/01/1987 | EP0227524A1 Aerial propeller blade profiles |
| 06/30/1987 | US4676459 Double propeller for propelling aircraft |
| 06/25/1987 | DE3545943A1 Aerodynamic lift and propulsion system |
| 06/09/1987 | US4671736 Apparatus for the control of an aerial propeller |
| 06/04/1987 | WO1987003332A1 Ram air turbine control system |
| 05/27/1987 | CN86107684A Propeller/fan pitch feathering apparatus |
| 05/12/1987 | US4664600 Rotor aerofoil blade containment |
| 05/06/1987 | EP0221003A2 Propeller synchrophaser and mode logic |
| 05/06/1987 | EP0221002A2 Improved propeller synchrophaser |
| 05/05/1987 | US4662584 Arrangements of or to propellers to improve the capabilities of propeller-driven craft |
| 04/28/1987 | US4660437 Differential gear box |
| 04/21/1987 | US4659283 Propeller Synchrophaser® device and mode logic |
| 04/14/1987 | US4657484 Blade pitch varying means |
| 04/14/1987 | US4657209 Ducted propeller aircraft |
| 04/01/1987 | CN86106719A Propeller synchrophaser and mode logic |
| 04/01/1987 | CN86106717A Improved propeller synchrophaser |
| 03/31/1987 | US4653981 For an aircraft |
| 03/25/1987 | CN86104001A Fixed-moment air propeller |
| 03/24/1987 | US4652213 Propeller blade for aircraft propulsion |
| 03/17/1987 | US4650402 Aircraft propeller with blade pitch adjustment for feather and reverse positions |
| 03/10/1987 | US4648921 Method of making fiber reinforced articles |
| 03/10/1987 | US4648798 Controllable pitch aircraft propeller |
| 03/04/1987 | EP0212724A2 Composite blade, in particular for a multiblade propeller with variable pitch and individually removable blades, and manufacturing process |
| 02/24/1987 | US4645420 Propeller control system |
| 02/17/1987 | US4643647 Rotor aerofoil blade containment |
| 02/12/1987 | DE3528134A1 Fork-shaped lever on a component consisting of fibre-reinforced plastic |
| 02/10/1987 | US4642029 Brake for counter rotating bladed members |
| 02/10/1987 | US4642028 Cuffed aircraft propeller |
| 02/04/1987 | CN86105565A Aircraft propeller noise reduction |
| 01/27/1987 | US4639284 Process for manufacturing a variable pitch multi-blade propeller by molding resin-impregnated fails around a preform |
| 01/22/1987 | DE3525117A1 Propulsion drive for aircraft and ships |
| 01/13/1987 | US4636143 Propeller for gaseous and fluidic media |
| 01/13/1987 | CA1216477A1 Rotor device |
| 12/30/1986 | EP0206447A1 Propulsion system |
| 12/23/1986 | US4630787 Airframe and propulsion system |
| 12/09/1986 | US4627791 Aeroelastically responsive composite propeller |
| 12/02/1986 | US4626173 Variable-pitch multi-blade propeller incorporating individually dismountable blades made of composite materials, process for manufacturing such blades and blades thus produced |
| 12/02/1986 | US4626172 Variable-pitch multi-blade propeller incorporating individually dismountable blades made of composite materials, process for manufacturing such blades and blades thus produced |
| 11/18/1986 | US4623299 Driving arrangement for watercraft |
| 11/05/1986 | EP0200337A2 Controllable pitch aircraft propeller |
| 10/21/1986 | US4618313 Axial propeller with increased effective displacement of air whose blades are not twisted |
| 10/07/1986 | CA1212300A1 Apparatus for the control of an aerial propeller |
| 09/16/1986 | US4611972 Aeroplane propeller |
| 08/12/1986 | US4605355 Propeller |
| 08/12/1986 | CA1209559A1 Propeller pitch change actuation system |
| 08/05/1986 | US4604032 Rotor device |
| 08/05/1986 | CA1208993A1 Pitch control system for variable pitch propeller |
| 07/02/1986 | CA1206892A Propeller brake |
| 06/24/1986 | US4596367 For capturing fluid flow/converting to mechanical rotary energy |
| 06/17/1986 | US4594761 Method of fabricating hollow composite airfoils |
| 05/27/1986 | US4591313 Propeller pitch control system and apparatus |
| 05/13/1986 | US4588354 Engine speed control in propeller pitch control systems |
| 03/25/1986 | US4578019 Ram air turbine |
| 02/05/1986 | EP0169964A1 Propeller |
| 02/04/1986 | US4567965 Propeller brake |
| 01/28/1986 | EP0157875A4 Position and control system for helicopter blade actuation. |
| 01/21/1986 | US4565491 Propulsion installation of air-cushion transport vehicle |
| 01/14/1986 | US4564337 Aircraft propeller |