FR990314A - Pales creuses - Google Patents
Pales creusesInfo
- Publication number
- FR990314A FR990314A FR990314DA FR990314A FR 990314 A FR990314 A FR 990314A FR 990314D A FR990314D A FR 990314DA FR 990314 A FR990314 A FR 990314A
- Authority
- FR
- France
- Prior art keywords
- hollow blades
- blades
- hollow
- Prior art date
- 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
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
- B64C27/16—Drive of rotors by means, e.g. propellers, mounted on rotor blades
- B64C27/18—Drive of rotors by means, e.g. propellers, mounted on rotor blades the means being jet-reaction apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR990314T | 1949-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR990314A true FR990314A (fr) | 1951-09-20 |
Family
ID=9543176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR990314D Expired FR990314A (fr) | 1949-05-05 | 1949-05-05 | Pales creuses |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR990314A (fr) |
-
1949
- 1949-05-05 FR FR990314D patent/FR990314A/fr not_active Expired
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