FR2231565B1 - - Google Patents
Info
- Publication number
- FR2231565B1 FR2231565B1 FR7419657A FR7419657A FR2231565B1 FR 2231565 B1 FR2231565 B1 FR 2231565B1 FR 7419657 A FR7419657 A FR 7419657A FR 7419657 A FR7419657 A FR 7419657A FR 2231565 B1 FR2231565 B1 FR 2231565B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/467—Aerodynamic features
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Hydraulic Turbines (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00366825A US3822105A (en) | 1971-09-22 | 1973-06-04 | Helicopter blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2231565A1 FR2231565A1 (fr) | 1974-12-27 |
| FR2231565B1 true FR2231565B1 (fr) | 1982-02-05 |
Family
ID=23444705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7419657A Expired FR2231565B1 (fr) | 1973-06-04 | 1974-06-04 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS51116599A (fr) |
| BR (1) | BR7404568D0 (fr) |
| CA (1) | CA988906A (fr) |
| DE (1) | DE2426689A1 (fr) |
| FR (1) | FR2231565B1 (fr) |
| GB (1) | GB1477490A (fr) |
| IL (1) | IL44661A (fr) |
| IT (1) | IT1014735B (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1538055A (en) * | 1975-05-19 | 1979-01-10 | Westland Aircraft Ltd | Helicopter rotor blades |
| US4028003A (en) * | 1976-04-12 | 1977-06-07 | United Technologies Corporation | Torsionally compliant helicopter rotor blade with improved stability and performance characteristics |
| FR2479132A1 (fr) * | 1980-03-25 | 1981-10-02 | Aerospatiale | Pale a hautes performances pour rotor d'helicoptere |
| DE102015121502A1 (de) | 2015-12-10 | 2017-06-14 | Christoph Fraundorfer | Tragschrauberrotorblatt zur autorotatorischen Auftriebserzeugung |
| US12110104B2 (en) * | 2022-08-31 | 2024-10-08 | Lockheed Martin Corporation | Method of stabilizing articulated rotor blade |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3065933A (en) * | 1960-05-20 | 1962-11-27 | Frank Krause Jr A | Helicopter |
-
1974
- 1974-03-18 CA CA195,272A patent/CA988906A/en not_active Expired
- 1974-04-17 IL IL44661A patent/IL44661A/en unknown
- 1974-06-01 DE DE19742426689 patent/DE2426689A1/de not_active Ceased
- 1974-06-03 JP JP49062764A patent/JPS51116599A/ja active Pending
- 1974-06-03 BR BR4568/74A patent/BR7404568D0/pt unknown
- 1974-06-04 GB GB2479274A patent/GB1477490A/en not_active Expired
- 1974-06-04 IT IT23551/74A patent/IT1014735B/it active
- 1974-06-04 FR FR7419657A patent/FR2231565B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IL44661A0 (en) | 1974-09-10 |
| IL44661A (en) | 1976-12-31 |
| JPS51116599A (en) | 1976-10-14 |
| CA988906A (en) | 1976-05-11 |
| IT1014735B (it) | 1977-04-30 |
| FR2231565A1 (fr) | 1974-12-27 |
| DE2426689A1 (de) | 1974-12-12 |
| GB1477490A (en) | 1977-06-22 |
| BR7404568D0 (pt) | 1975-01-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |