GB612686A - Improvements in or relating to rotary wing aircraft - Google Patents
Improvements in or relating to rotary wing aircraftInfo
- Publication number
- GB612686A GB612686A GB1648346A GB1648346A GB612686A GB 612686 A GB612686 A GB 612686A GB 1648346 A GB1648346 A GB 1648346A GB 1648346 A GB1648346 A GB 1648346A GB 612686 A GB612686 A GB 612686A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- flapping
- displaced
- movement
- ring
- 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
- B64C27/32—Rotors
- B64C27/37—Rotors having articulated joints
- B64C27/39—Rotors having articulated joints with individually articulated blades, i.e. with flapping or drag hinges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automatic Assembly (AREA)
- Toys (AREA)
Abstract
612,686. Rotary-wing aircraft. BRISTOL AEROPLANE CO., Ltd., and HAFNER, R. May 30, 1946, No. 16483. [Class 4] A sustaining rotor comprises two or more flapping blades and a stop member common to at least a pair of blades to limit their downward movement, and is characterised in that on its engagement by other than all the blades to which it is common it is displaced to allow the blades to move downwardly, and upon engagement by all the blades it is not so displaced and limits the downward movement of the blades. In the form shown, in which the blades 12 are mounted on drag and flapping bearings 15, 14, the stop member comprises a ring 17 connected to a conical flange 16 on the rotor hub by resilient means, such as a rubber ring 1'8 bonded to both members. Each blade carries a lug 19 on its under side, and if any lug contacts the ring 17 in flight, the latter is displaced and does not prevent downward flapping movement of the associated blade. Simultaneous contact by all the lugs; however, does not cause'displacement of the member 17, and the blades are held clear of the fuselage. Stops 20, 21 are also provided to limit upward flapping movement of the blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1648346A GB612686A (en) | 1946-05-30 | 1946-05-30 | Improvements in or relating to rotary wing aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1648346A GB612686A (en) | 1946-05-30 | 1946-05-30 | Improvements in or relating to rotary wing aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB612686A true GB612686A (en) | 1948-11-16 |
Family
ID=10078156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1648346A Expired GB612686A (en) | 1946-05-30 | 1946-05-30 | Improvements in or relating to rotary wing aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB612686A (en) |
-
1946
- 1946-05-30 GB GB1648346A patent/GB612686A/en not_active Expired
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