FR844172A - Improvements to twin powertrains for airplanes - Google Patents
Improvements to twin powertrains for airplanesInfo
- Publication number
- FR844172A FR844172A FR844172DA FR844172A FR 844172 A FR844172 A FR 844172A FR 844172D A FR844172D A FR 844172DA FR 844172 A FR844172 A FR 844172A
- Authority
- FR
- France
- Prior art keywords
- powertrains
- airplanes
- twin
- twin powertrains
- 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
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR844172T | 1938-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR844172A true FR844172A (en) | 1939-07-20 |
Family
ID=9312287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR844172D Expired FR844172A (en) | 1938-03-28 | 1938-03-28 | Improvements to twin powertrains for airplanes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR844172A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2432550A (en) * | 1940-04-06 | 1947-12-16 | Waseige Charles Raymond | Screw propeller pitch adjusting device |
US2437188A (en) * | 1943-01-19 | 1948-03-02 | Fairey Aviat Co Ltd | Self-contained variable pitch propeller unit |
US2457999A (en) * | 1946-03-28 | 1949-01-04 | Continental Aviat & Eng Corp | Lubrication means for dual propeller shaft assemblies |
DE896597C (en) * | 1940-12-17 | 1953-12-07 | Messerschmitt Boelkow Blohm | Opposing, coaxially arranged and jointly inevitably driven adjusting propellers in the same speed ratio |
US5954479A (en) * | 1996-12-16 | 1999-09-21 | Smith; Ronald A. | Twin engine, coaxial, dual-propeller propulsion system |
-
1938
- 1938-03-28 FR FR844172D patent/FR844172A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2432550A (en) * | 1940-04-06 | 1947-12-16 | Waseige Charles Raymond | Screw propeller pitch adjusting device |
DE896597C (en) * | 1940-12-17 | 1953-12-07 | Messerschmitt Boelkow Blohm | Opposing, coaxially arranged and jointly inevitably driven adjusting propellers in the same speed ratio |
US2437188A (en) * | 1943-01-19 | 1948-03-02 | Fairey Aviat Co Ltd | Self-contained variable pitch propeller unit |
US2457999A (en) * | 1946-03-28 | 1949-01-04 | Continental Aviat & Eng Corp | Lubrication means for dual propeller shaft assemblies |
US5954479A (en) * | 1996-12-16 | 1999-09-21 | Smith; Ronald A. | Twin engine, coaxial, dual-propeller propulsion system |
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