초록 ▼

A stabilizer suitable for stabilizing a shock formed during transonic velocity is presented. The stabilizer comprises an inboard end, an outboard end that forms an airfoil, which is positioned opposite the inboard end and, an upper surface that extends between the inboard end and the outboard end. A

A stabilizer suitable for stabilizing a shock formed during transonic velocity is presented. The stabilizer comprises an inboard end, an outboard end that forms an airfoil, which is positioned opposite the inboard end and, an upper surface that extends between the inboard end and the outboard end. A lower surface also extends between the inboard end and the outboard end and is positioned to oppose the upper surface. A leading edge between the upper surface and lower surface forms the stabilizer nose. A trailing edge positioned opposite the leading edge forms a generally concave surface. The outboard end of the stabilizer forms a predetermined angle omega with the trailing edge for positioning the outboard end relative to the trailing edge. The outboard end of the stabilizer forms a predetermined angle tau with the leading edge for providing a forward sweep angle. When attached to a leading edge of a reaction body such as a leading edge flap or wing, the stabilizer will modify the behavior of a transonic shock. When the magnitude of the leading edge sweep angle is equal to the sweep back angle of the opposite wing, radar signature is minimized. In some applications the modification to the behavior of the transonic shock prevents abrupt wing stall phenomena and optimally minimizes radar detection signature. A vehicle such as an airplane, rocket or water borne ship may incorporate the stabilizer on any of its reaction surfaces including control surfaces and furthermore in any particular location to modify the behavior of the shock.

대표청구항 ▼

A stabilizer suitable for stabilizing a shock formed during transonic velocity is presented. The stabilizer comprises an inboard end, an outboard end that forms an airfoil, which is positioned opposite the inboard end and, an upper surface that extends between the inboard end and the outboard end. A

A stabilizer suitable for stabilizing a shock formed during transonic velocity is presented. The stabilizer comprises an inboard end, an outboard end that forms an airfoil, which is positioned opposite the inboard end and, an upper surface that extends between the inboard end and the outboard end. A lower surface also extends between the inboard end and the outboard end and is positioned to oppose the upper surface. A leading edge between the upper surface and lower surface forms the stabilizer nose. A trailing edge positioned opposite the leading edge forms a generally concave surface. The outboard end of the stabilizer forms a predetermined angle omega with the trailing edge for positioning the outboard end relative to the trailing edge. The outboard end of the stabilizer forms a predetermined angle tau with the leading edge for providing a forward sweep angle. When attached to a leading edge of a reaction body such as a leading edge flap or wing, the stabilizer will modify the behavior of a transonic shock. When the magnitude of the leading edge sweep angle is equal to the sweep back angle of the opposite wing, radar signature is minimized. In some applications the modification to the behavior of the transonic shock prevents abrupt wing stall phenomena and optimally minimizes radar detection signature. A vehicle such as an airplane, rocket or water borne ship may incorporate the stabilizer on any of its reaction surfaces including control surfaces and furthermore in any particular location to modify the behavior of the shock. claim 1, wherein the data stored in said nonvolatile semiconductor memory comprises file data, and wherein access restriction, copy guard information, encipherment, and a personal identification number at the time of access can be selectively set for every file data. 5. The storage device according to claim 4, wherein in said file data stored in said nonvolatile semiconductor memory, a data file including hidden data file manages processes. 6. The storage device according to claim 1, wherein an access right is set into file data stored in said nonvolatile semiconductor memory, and accesses for reading and writing said file data are restricted in accordance with said access right. 7. The storage device according to claim 6, wherein a restriction of said access right can be set by a personal identification number of a user. 8. The storage device according to claim 1, wherein an operating clock of said control means and a transfer clock used for input/output of the data can be independently changed. 9. The storage device according to claim 1, wherein an operating clock of said control means is frequency divided and used as a transfer clock for input/output of the data. 10. The storage device according to claim 1, wherein said enciphering means generates an enciphering key based on parameters of personal information of a user. 11. The storage device according to claim 1, wherein said enciphering means generates an enciphering key based on a personal identification number of a user. 12. The storage device according to claim 1, wherein said enciphering means generates an enciphering key based on a subscriber's number. 13. The storage device according to claim 2, wherein said enciphering means generates an enciphering key based on parameters of personal information and parameters accessed by said non-public command system for management. 14. The storage device according to claim 1, wherein said enciphering means performs enciphering using a compound value of an enciphering key formed by an enciphering algorithm and a variable value. 15. The storage device according to claim 14, wherein said variable value is a page number at a time when a page mode is accessed. 16. The storage device according to claim 1, wherein input data is enciphered and stored in said nonvolatile semiconductor memory and the data read out from said nonvolatile semiconductor memory is deciphered prior to output. 17. The storage device according to claim 1, further comprising means for setting either a first mode in which input data is enciphered and stored in said nonvolatile semiconductor memory and the data read out from said nonvolatile semiconductor memory is deciphered and outputted or a second mode in which the input data is stored as is in said nonvolatile semiconductor memory and the data read out from said nonvolatile semiconductor memory is outputted as is. 18. The storage device according to claim 1, further comprising means for setting: a first mode in which input data is enciphered and stored in said nonvolatile semiconductor memory and data read out from said nonvolatile semiconductor memory is deciphered and outputted; and a second mode in which the input data is enciphered and stored in said nonvolatile semiconductor memory and the enciphered data read out from said nonvolatile semiconductor memory is outputted without enciphering. 19. The storage device according to claim 1, further comprising means for setting: a first mode in which input data is enciphered and stored in said nonvolatile semiconductor memory and the data read out from said nonvolatile semiconductor memory is deciphered and outputted; a second mode in which the input data is stored as is in said nonvolatile semiconductor memory and the data read out from said nonvolatile semiconductor memory is outputted as is; and a third mode in which the input data is enciphered and stored in said nonvolatile semiconductor memory and the enciphered data read out from said nonvolatil