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Aerobatic and display code in some countries. [2] 7100, 7200, 7300 US: External ARTCC subsets. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] Switzerland: 7100 in Switzerland for SAR . [14] 7400 US, UK, Australia: Unmanned aerial vehicle lost link. [15] [16] [17] 7500: ICAO ...
60º–360° audible mass notification coverage over areas up to 14 km 2 (5.4 sq mi) LRAD devices include hand-held devices, as well as those mounted on helicopters, motor vehicles and ships. [5] The parameter "ka", which is the wave number multiplied by the speaker radius, is often used to characterize sound source directivity. For this source ...
[1] [2] [3] APCOM collected old teleprinter machines (TTYs) from the Department of Defense and junkyards. Acoustic couplers were cabled to TTYs enabling the AT&T standard Model 500 telephone to couple, or fit, into the rubber cups on the coupler, thus allowing the device to transmit and receive a unique sequence of tones generated by the ...
Using the codes eases coordination and improves understanding during multiservice operations. The codes are intended for use by air, ground, sea, and space operations personnel at the tactical level. Code words that are followed by an asterisk (*) may differ in meaning from NATO usage. There is a key provided below to describe what personnel ...
This "code" is one of many innocuous sounding secret codes that. If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow ...
The CoAX 2D/2R was originally known as the FLIP 2 (Fly In Perfection) and is a derivative of the FLIP 1, a conventional helicopter with a main and tail rotor.[1]The CoAX 2D/2R was designed to comply with the European Class 6 microlight helicopter rules, including the category's maximum takeoff weight of 450 kg (992 lb).
Fox is a brevity code used by NATO pilots to signal the simulated or actual release of an air-to-air munition or other combat function. Army aviation elements may use a different nomenclature, as the nature of helicopter-fired weapons is almost always air-to-surface.
The Sikorsky/Lockheed Martin VH-92 Patriot [4] is an American helicopter operated in the United States Marine Corps' Marine One U.S. presidential transport fleet. It is a militarized variant of the Sikorsky S-92 and is larger than the former Marine One helicopters.