GB690768A - Helicopter blade with trailing edge tab - Google Patents
Helicopter blade with trailing edge tabInfo
- Publication number
- GB690768A GB690768A GB1441/51A GB144151A GB690768A GB 690768 A GB690768 A GB 690768A GB 1441/51 A GB1441/51 A GB 1441/51A GB 144151 A GB144151 A GB 144151A GB 690768 A GB690768 A GB 690768A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tab
- trailing edge
- temperature
- spar
- blades
- 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
- B64C27/46—Blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
690,768. Blades for rotary wing aircraft. DOMAN HELICOPTERS, INC. Jan. 18, 1951. [Feb. 28, 1950] No. 1441/51. Drawings to Specification. Class 4. [Also in Group XI] A rotor blade for a helicopter or the like comprises a spar, an aerodynamic body carried by the spar having a trailing edge, and tab means of non-metallic thermoplastic material secured to the trailing edge of the body for a substantial length thereof and projecting therefrom which can be made plastic at a relatively low temperature without stressing the material beyond its elastic limit in order to secure a fixed adjustment of the tab for the purpose of obtaining correct tracking of a plurality of such blades when attached to a rotor head. The tab may be made of a material which becomes plastic at a temperature of under 400 degrees centigrade and a hand tool (see Group XI) comprising a U-shaped member containing an electric heating unit may be fitted over the tab to raise it to the temperature at which it becomes plastic so that it may be bent by movement of the tool.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US690768XA | 1950-02-28 | 1950-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB690768A true GB690768A (en) | 1953-04-29 |
Family
ID=22086580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1441/51A Expired GB690768A (en) | 1950-02-28 | 1951-01-18 | Helicopter blade with trailing edge tab |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB690768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460235A (en) * | 2015-11-30 | 2016-04-06 | 哈尔滨飞机工业集团有限责任公司 | Repairing method for glue failure of front edge covering piece of main blade of helicopter |
-
1951
- 1951-01-18 GB GB1441/51A patent/GB690768A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460235A (en) * | 2015-11-30 | 2016-04-06 | 哈尔滨飞机工业集团有限责任公司 | Repairing method for glue failure of front edge covering piece of main blade of helicopter |
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