GB516622A - Improvements in or relating to the control of aircraft according to air speed - Google Patents
Improvements in or relating to the control of aircraft according to air speedInfo
- Publication number
- GB516622A GB516622A GB17705/38A GB1770538A GB516622A GB 516622 A GB516622 A GB 516622A GB 17705/38 A GB17705/38 A GB 17705/38A GB 1770538 A GB1770538 A GB 1770538A GB 516622 A GB516622 A GB 516622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- pressure
- speed
- motor
- air speed
- 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
- 239000012530 fluid Substances 0.000 abstract 3
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/04—Control of altitude or depth
- G05D1/06—Rate of change of altitude or depth
- G05D1/0607—Rate of change of altitude or depth specially adapted for aircraft
- G05D1/0615—Rate of change of altitude or depth specially adapted for aircraft to counteract a perturbation, e.g. gust of wind
- G05D1/0623—Rate of change of altitude or depth specially adapted for aircraft to counteract a perturbation, e.g. gust of wind by acting on the pitch
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
516,622. Fluid - pressure servomotor control systems. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and MEREDITH, F. W. June 14, 1938, No. 17705. [Class 135] A servo-motor device for controlling the air speed of aircraft of the kind in which the variations of speed vary in dynamic pressure has this pressure balanced against an opposing fluid pressure. In the form shown a control surface, such as an elevator 23, is adjusted to maintain the air-speed by a control member 10 subject to pressure produced by motion through the air, e.g., by a Pitot head 13, which pressure is opposed by a fluid pressure loading, such as air supplied from a centrifugal pump 15. An electric motor 29 may drive this pump either at a constant speed determined by a rheostat 31, when the pressure produced will vary with the air density and a tachometer 32 may serve to indicate the desired true air speed for which the rheostat has been set, or at a constant torque determined by a constant current device in the motor circuit, when the aircraft will be maintained at a desired " indicated air speed. The diaphragm 10 is connected to a piston valve 17 controlling compressed air from a supply pipe 19 to a double-acting servo-motor 21 connected to the elevator 23 and to the valve seat 18 by a pivoted lever 25, and a dashpot 24 and spring 28 provide for recentring of the valve seat and diaphragm after each variation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17705/38A GB516622A (en) | 1938-06-14 | 1938-06-14 | Improvements in or relating to the control of aircraft according to air speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17705/38A GB516622A (en) | 1938-06-14 | 1938-06-14 | Improvements in or relating to the control of aircraft according to air speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB516622A true GB516622A (en) | 1940-01-08 |
Family
ID=10099760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17705/38A Expired GB516622A (en) | 1938-06-14 | 1938-06-14 | Improvements in or relating to the control of aircraft according to air speed |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB516622A (en) |
-
1938
- 1938-06-14 GB GB17705/38A patent/GB516622A/en not_active Expired
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