GB612687A - Improvements in or relating to sustaining rotors for rotary wing aircraft - Google Patents
Improvements in or relating to sustaining rotors for rotary wing aircraftInfo
- Publication number
- GB612687A GB612687A GB1648446A GB1648446A GB612687A GB 612687 A GB612687 A GB 612687A GB 1648446 A GB1648446 A GB 1648446A GB 1648446 A GB1648446 A GB 1648446A GB 612687 A GB612687 A GB 612687A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- hub
- bearing
- axis
- hinge
- 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)
- Pivots And Pivotal Connections (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Plates (AREA)
Abstract
612,687. Rotary-wing aircraft. BRISTOL AEROPLANE CO., Ltd., HAFNER, R., and WALKER, G. E. May 30, 1946, No. 16484. [ Class 4] In a sustaining rotor of the type in which three or more blades are spaced around the hub and each is attached thereto by a hingepin passing through a blade-attachment member so that each blade is capable of independent flapping movement about a single axis only, the bearing surface of each hinge extends beyond one end face only of a next adjacent hinge in succession around the hub. The invention is shown applied to the rotor of a helicopter with three blades 6, each of which is attached to the rotor hub 7 by a hinge, one portion 9 of which carries the drag pivot pin 10 and the other portion 8 engages with the flapping pivot pin 12. The arrangement is such that each bearing 8 is divided into two portions e, f of unequal lengths by a radial line b passing through the rotor axis and perpendicular to the pivot axis. Each line b is offset with respect to the axis d of the associated rotor blade, the longer portion e of each bearing extends beyond the end of the adjacent hinge pin. The bearing 8 is located between lugs 7a, 7b on the rotor hub, the pin 10 being inserted and withdrawn through a hole in the lug 7a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1648446A GB612687A (en) | 1946-05-30 | 1946-05-30 | Improvements in or relating to sustaining rotors for rotary wing aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1648446A GB612687A (en) | 1946-05-30 | 1946-05-30 | Improvements in or relating to sustaining rotors for rotary wing aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB612687A true GB612687A (en) | 1948-11-16 |
Family
ID=10078178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1648446A Expired GB612687A (en) | 1946-05-30 | 1946-05-30 | Improvements in or relating to sustaining rotors for rotary wing aircraft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB612687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1037272B (en) * | 1954-10-26 | 1958-08-21 | Saunders Roe Ltd | Propeller, especially for helicopters, with friction damper for the pivoting movement of the wing blades in the plane of rotation |
-
1946
- 1946-05-30 GB GB1648446A patent/GB612687A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1037272B (en) * | 1954-10-26 | 1958-08-21 | Saunders Roe Ltd | Propeller, especially for helicopters, with friction damper for the pivoting movement of the wing blades in the plane of rotation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB916894A (en) | Improvements relating to cyclic pitch control mechanisms for rotary wing aircraft | |
| GB1241960A (en) | Improved rotor for rotary-wing aircraft | |
| US2297815A (en) | Air rotor | |
| GB612687A (en) | Improvements in or relating to sustaining rotors for rotary wing aircraft | |
| GB958536A (en) | Improvements in or relating to rotary winged aircraft | |
| GB1243821A (en) | Improvements in rotors for rotary wing aircraft | |
| GB606305A (en) | Improvements in or relating to rotary wing aircraft | |
| GB1467712A (en) | Helicopter rotor hub | |
| GB608459A (en) | Improvements in rotors for rotary-wing aircraft | |
| GB1458874A (en) | Semi-rigid rotors for 'otary wing aircraft | |
| GB1045554A (en) | Rotary wing aircraft | |
| GB752220A (en) | Improvements in torque compensating rotors for aircraft | |
| GB619694A (en) | Improvements in or relating to rotor blades | |
| GB617283A (en) | Improvements in rotating wing aircraft | |
| GB598878A (en) | Improvements in or relating to rotary wing aircraft | |
| GB614621A (en) | Improvements in and relating to rotative aerofoils with propulsive ducts | |
| GB578710A (en) | Control of rotating-wing aircraft | |
| GB602270A (en) | Improvements in or relating to rotary-wing aircraft | |
| GB744437A (en) | Improvements in or relating to rotor blades for helicopters and like rotary wing aircraft | |
| GB614622A (en) | Improvements in and relating to rotative aerofoils with propulsive ducts | |
| GB957314A (en) | Improvements in aircraft-lifting and -sustaining rotors | |
| GB606447A (en) | Improvements in and relating to sustaining propellers for aircraft and parachutes | |
| GB1310035A (en) | Semi-rigid rotor systems for rotary wing aircraft | |
| GB1309168A (en) | Semi-rigid rotor systems for rotary wing aircraft | |
| GB504894A (en) | Improvements in and relating to aircraft sustaining rotors |