FR2137921A1 - - Google Patents
Info
- Publication number
- FR2137921A1 FR2137921A1 FR7217394A FR7217394A FR2137921A1 FR 2137921 A1 FR2137921 A1 FR 2137921A1 FR 7217394 A FR7217394 A FR 7217394A FR 7217394 A FR7217394 A FR 7217394A FR 2137921 A1 FR2137921 A1 FR 2137921A1
- 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.)
- Granted
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
- B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
- B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
- B64C29/0033—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being tiltable relative to the fuselage
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00143850A US3829240A (en) | 1971-05-17 | 1971-05-17 | Advanced geometry main rotor blade |
US00143970A US3799700A (en) | 1971-05-17 | 1971-05-17 | Main rotor blade construction |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2137921A1 true FR2137921A1 (enrdf_load_stackoverflow) | 1972-12-29 |
FR2137921B1 FR2137921B1 (enrdf_load_stackoverflow) | 1976-08-06 |
Family
ID=26841459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7217394A Expired FR2137921B1 (enrdf_load_stackoverflow) | 1971-05-17 | 1972-05-16 |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU459383B2 (enrdf_load_stackoverflow) |
DE (1) | DE2223567A1 (enrdf_load_stackoverflow) |
FR (1) | FR2137921B1 (enrdf_load_stackoverflow) |
GB (1) | GB1367197A (enrdf_load_stackoverflow) |
IT (1) | IT957890B (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2421798A1 (fr) * | 1978-04-03 | 1979-11-02 | Textron Inc | Pale de rotor principal et son procede de fabrication |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3310937C2 (de) * | 1982-10-09 | 1984-10-31 | Dornier Gmbh, 7990 Friedrichshafen | Propellerblatt, insbesondere für den Vortrieb von Luftfahrzeugen |
CA2350161A1 (en) * | 2000-06-09 | 2001-12-09 | John G. Roncz | Airfoil suitable for forward and reverse flow |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1369600A (fr) * | 1963-07-23 | 1964-08-14 | Electric Auto Lite Co | Hélice, notamment pour avions à décollage et atterrissage verticaux |
-
1972
- 1972-05-08 AU AU42011/72A patent/AU459383B2/en not_active Expired
- 1972-05-15 DE DE19722223567 patent/DE2223567A1/de not_active Withdrawn
- 1972-05-16 FR FR7217394A patent/FR2137921B1/fr not_active Expired
- 1972-05-16 IT IT5027772A patent/IT957890B/it active
- 1972-05-17 GB GB2311872A patent/GB1367197A/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1369600A (fr) * | 1963-07-23 | 1964-08-14 | Electric Auto Lite Co | Hélice, notamment pour avions à décollage et atterrissage verticaux |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2421798A1 (fr) * | 1978-04-03 | 1979-11-02 | Textron Inc | Pale de rotor principal et son procede de fabrication |
Also Published As
Publication number | Publication date |
---|---|
DE2223567A1 (de) | 1972-12-07 |
FR2137921B1 (enrdf_load_stackoverflow) | 1976-08-06 |
AU4201172A (en) | 1973-11-15 |
AU459383B2 (en) | 1975-03-27 |
GB1367197A (en) | 1974-09-18 |
IT957890B (it) | 1973-10-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |