GB809948A - Improvements in or relating to whirling arm apparatus - Google Patents
Improvements in or relating to whirling arm apparatusInfo
- Publication number
- GB809948A GB809948A GB1852956A GB1852956A GB809948A GB 809948 A GB809948 A GB 809948A GB 1852956 A GB1852956 A GB 1852956A GB 1852956 A GB1852956 A GB 1852956A GB 809948 A GB809948 A GB 809948A
- Authority
- GB
- United Kingdom
- Prior art keywords
- model
- annular
- fan
- electric motor
- housing
- 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
- B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
- B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
- B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
- B64C29/0025—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being fixed relative to the fuselage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Toys (AREA)
Abstract
809,948. Whirling arm apparatus. COOKE, W. D. Nov. 30, 1956 [June 15, 1956], No. 18529/56. Divided out of 809,947. Class 4. Whirling arm apparatus comprises a member mounted to rotate an aerodynamic model about an axis, and a centrifugal fan mounted to rotate about the axis in the sense opposite to that of the model so as to set up an air flow with spiral streamlines through which the model moves. Fig. 1 shows a section of a housing 1 containing an electric motor 5 driving a hollow shaft 3 to which is fixed the fan 9 having blades 11. An annular air intake 14 surrounds the fan so as to form therewith an annular gap in which the model 19 moves. Air from the fan is sucked into intake 14 and along an annular duct 15 to a flared outlet 16 by ejector devices 17 fed by pipes 26 from a distributor 32 and pump 30 driven by an electric motor 7. The model 19 is supported by a radial arm (not shown) on a hollow shaft 4 driven by an electric motor 6. Shaft 4 also supports a pitot head on an arm 20. Electrical power supply cables and leads from test instruments e.g. strain gauges on the model, pass along a central tube 2. Shock waves rising from the model between lines A and B pass out of the housing through an annular aperture 24, the pipes 26 being of suitable cross-section. Shock waves moving down from the model between lines C and D are reflected by annular surfaces 27, 28 to pass out of the housing through an annular aperture 23, struts 25 of suitable cross-section being provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB951956A GB809947A (en) | 1956-03-27 | 1956-03-27 | Improvements in or relating to helicopters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809948A true GB809948A (en) | 1959-03-04 |
Family
ID=9873540
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB951956A Expired GB809947A (en) | 1956-03-27 | 1956-03-27 | Improvements in or relating to helicopters |
| GB1852956A Expired GB809948A (en) | 1956-03-27 | 1956-06-15 | Improvements in or relating to whirling arm apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB951956A Expired GB809947A (en) | 1956-03-27 | 1956-03-27 | Improvements in or relating to helicopters |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB809947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010292A (en) * | 2024-04-09 | 2024-05-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Sub-transonic progressive direct connection wind tunnel test model supporting device and design method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3568955A (en) * | 1968-12-24 | 1971-03-09 | James E Mcdevitt | Blowhard vtol aircraft |
| GB2123780A (en) * | 1982-05-05 | 1984-02-08 | Francis Williamson | Improvements to aircraft |
| CN115683541B (en) * | 2023-01-05 | 2023-03-14 | 中国空气动力研究与发展中心高速空气动力研究所 | Multi-channel pulse micro-jet generator for flow control of large S-bend air inlet channel |
-
1956
- 1956-03-27 GB GB951956A patent/GB809947A/en not_active Expired
- 1956-06-15 GB GB1852956A patent/GB809948A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010292A (en) * | 2024-04-09 | 2024-05-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Sub-transonic progressive direct connection wind tunnel test model supporting device and design method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB809947A (en) | 1959-03-04 |
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