IL78785A - Method for determining the horizontal airspeed of helicopters in low speed ranges - Google Patents
Method for determining the horizontal airspeed of helicopters in low speed rangesInfo
- Publication number
- IL78785A IL78785A IL78785A IL7878586A IL78785A IL 78785 A IL78785 A IL 78785A IL 78785 A IL78785 A IL 78785A IL 7878586 A IL7878586 A IL 7878586A IL 78785 A IL78785 A IL 78785A
- Authority
- IL
- Israel
- Prior art keywords
- helicopters
- determining
- low speed
- speed ranges
- horizontal airspeed
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85107190A EP0204856B1 (fr) | 1985-06-11 | 1985-06-11 | Procédé pour la détermination de la vitesse horizontale propre d'un hélicoptère dans le domaine des basses vitesses |
Publications (2)
Publication Number | Publication Date |
---|---|
IL78785A0 IL78785A0 (en) | 1986-08-31 |
IL78785A true IL78785A (en) | 1990-07-12 |
Family
ID=8193560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL78785A IL78785A (en) | 1985-06-11 | 1986-05-15 | Method for determining the horizontal airspeed of helicopters in low speed ranges |
Country Status (4)
Country | Link |
---|---|
US (1) | US4702106A (fr) |
EP (1) | EP0204856B1 (fr) |
DE (1) | DE3561768D1 (fr) |
IL (1) | IL78785A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE60951T1 (de) * | 1986-06-02 | 1991-03-15 | Litef Gmbh | Verfahren zur bestimmung der horizontaleigengeschwindigkeit von hubschraubern in hoeheren geschwindigkeitsbereichen. |
EP0249848B1 (fr) * | 1986-06-14 | 1990-02-28 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Système de détermination de la vitesse de vol des hélicoptères |
FR2610411B1 (fr) * | 1987-02-04 | 1989-06-09 | Sfim | Procede et dispositif de mesure de la vitesse par rapport a l'air d'un helicoptere a basse vitesse |
FR2611040B1 (fr) * | 1987-02-12 | 1989-06-30 | Sfim | Systeme autonome de mesure cinematique pour helicoptere |
FR2648233B1 (fr) * | 1989-06-07 | 1991-10-04 | Crouzet Sa | Procede et dispositif de la determination de la vitesse par rapport a l'air d'un helicoptere |
FR2714883B1 (fr) * | 1994-01-12 | 1996-03-29 | Bernard Durand | Pilote automatique pour hélicoptères à objectif vitesse-air. |
US5751609A (en) * | 1996-10-24 | 1998-05-12 | The United States Of America As Represented By The Secretary Of The Navy | Neural network based method for estimating helicopter low airspeed |
US5901272A (en) * | 1996-10-24 | 1999-05-04 | The United States Of America As Represented By The Secretary Of The Navy | Neural network based helicopter low airspeed indicator |
US5987397A (en) * | 1998-03-13 | 1999-11-16 | The United States Of America As Represented By The Secretary Of The Navy | Neural network system for estimation of helicopter gross weight and center of gravity location |
US7127335B2 (en) * | 2003-03-25 | 2006-10-24 | Rosemount Aerospace Inc. | Low airspeed assist algorithm for air data computer applications |
US7984146B2 (en) * | 2006-05-04 | 2011-07-19 | Sikorsky Aircraft Corporation | Aircraft health and usage monitoring system with comparative fleet statistics |
US20090083050A1 (en) * | 2007-09-25 | 2009-03-26 | Eltman Joseph T | Compilation and distribution of data for aircraft fleet management |
US7983809B2 (en) * | 2007-12-21 | 2011-07-19 | Sikorsky Aircraft Corporation | Aircraft integrated support system (ISS) |
US9506945B2 (en) | 2014-06-10 | 2016-11-29 | Sikorsky Aircraft Corporation | Rotorcraft flight parameter estimation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1181669A (en) * | 1966-07-21 | 1970-02-18 | Elliott Brothers London Ltd | Improvements relating to Air Responsive Apparatus |
FR2282644A1 (fr) * | 1974-08-22 | 1976-03-19 | France Etat | Dispositif pour mesurer la vitesse d'un helicoptere |
GB2037688B (en) * | 1978-12-01 | 1983-01-06 | Westland Aircraft Ltd | Helicopter airspeed indicating system |
US4300200A (en) * | 1978-12-01 | 1981-11-10 | Westland Aircraft Limited | Helicopter airspeed indicating system |
EP0094778A1 (fr) * | 1982-05-19 | 1983-11-23 | WESTLAND plc | Indicateur de vitesse par rapport a l'air à bord d'un hélicoptère |
-
1985
- 1985-06-11 EP EP85107190A patent/EP0204856B1/fr not_active Expired
- 1985-06-11 DE DE8585107190T patent/DE3561768D1/de not_active Expired
-
1986
- 1986-05-15 IL IL78785A patent/IL78785A/xx not_active IP Right Cessation
- 1986-06-06 US US06/872,044 patent/US4702106A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0204856A1 (fr) | 1986-12-17 |
IL78785A0 (en) | 1986-08-31 |
DE3561768D1 (en) | 1988-04-07 |
EP0204856B1 (fr) | 1988-03-02 |
US4702106A (en) | 1987-10-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU543116B2 (en) | Method for determining acceleration | |
GB8522270D0 (en) | Velocity hydrofoils | |
GB8606685D0 (en) | Speed limiting means | |
IL78785A (en) | Method for determining the horizontal airspeed of helicopters in low speed ranges | |
DE3570761D1 (en) | Measuring device for helicopter speed | |
GB8520414D0 (en) | Speed indicating means | |
GB8612926D0 (en) | Speed change device | |
AU576321B2 (en) | Measuring wind speed | |
GB8522599D0 (en) | Speed governor | |
DE3478765D1 (en) | Apparatus for measuring and displaying the speed of a craft, particularly a sail-board | |
GB2184305B (en) | Propeller speed measurement | |
GB8408629D0 (en) | Speed governor | |
GB8503983D0 (en) | Speed governor | |
GB8416404D0 (en) | Speed limit indicator | |
GB2115251B (en) | Measuring aircraft speed | |
GB8412893D0 (en) | Centrifugal speed governor | |
EP0176300A3 (en) | Speed capture in climb for aircraft | |
SU1195792A1 (ru) | Устройство для измерения высоты и вертикальной скорости летательного аппарата | |
EP0199988A3 (en) | High speed counter | |
GB8526295D0 (en) | Speed governor | |
AU577331B2 (en) | Two speed range tachometer | |
ES528664A0 (es) | Perfeccionamientos en aeronaves de despegue vertical | |
GB2148651B (en) | Dopple speed measurement | |
IL82581A0 (en) | Method of determining the horizontal speed of helicopters | |
GB2179149B (en) | Method for determining galactitol |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RH | Patent void |