Dorsal Fin (aircraft Surface) A fixed vertical finextending from the top of the fuselage to the leading edge of the vertical fin. Dorsal fins are used to increase the directional stability of an airplane.
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From 20 years ago we had security cameras that autodetect movement, pan, zoom, and auto track. You could even set limits so it does not record anything outside your premises.
The same approach is now used in industry, e.g. safety systems that utilize a camera. you can draw virtual lines...
The articls says,
Leonardo is also displaying its Grifo-346 (M-Scan) fire control radar in-place on-board the M-346FA (Fighter Attack) aircraft, at its static area.
This radar is presently at an advanced stage of integration on the M-346FA and comes with a suite of field-proven air-to-air...
http://www.globaltimes.cn/content/1150866.shtml
China delivers first overhauled JF-17 fighter jet to Pakistan: report
By Liu Xuanzun Source:Global Times Published: 2019/5/21 17:14:40
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A Pakistani JF-17 Thunder fighter jet arrives at a Chinese airport to take part in the "Shaheen VI" joint...