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  2. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    External ARTCC subset. (Block of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 1200 Australia: Civil VFR flights in class E or G airspace. [6] Canada, US: Visual flight rules (VFR) flight standard squawk code used in North American airspace when no other has been assigned or is ...

  3. IFF Mark X - Wikipedia

    en.wikipedia.org/wiki/IFF_Mark_X

    Three special-purpose codes are also used, 7500 means the aircraft is being hijacked, 7600 means their voice radio set is not working, and 7700 is a general emergency. [22] For mode C, the altitude is encoded using Gillham code, using 11 bits. The lowest possible code is 000000000001, representing an altitude of -1200 feet.

  4. Transponder (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Transponder_(aeronautics)

    A discrete transponder code (often called a squawk code) is assigned by air traffic controllers to identify an aircraft uniquely in a flight information region (FIR). This allows easy identification of aircraft on radar. [6] [7] Codes are made of four octal digits; the dials on a transponder read from zero to seven, inclusive. Four octal digits ...

  5. Identification friend or foe - Wikipedia

    en.wikipedia.org/wiki/Identification_friend_or_foe

    Mode 1: military only; provides 2-digit octal (6 bit) "mission code" that identifies the aircraft type or mission. [21] Mode 2: military only; provides 4-digit octal (12 bit) unit code or tail number. [22] Mode 3/A: military/civilian; provides a 4-digit octal (12 bit) identification code for the aircraft, assigned by the air traffic controller.

  6. Squawk code - Wikipedia

    en.wikipedia.org/wiki/Squawk_code

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  7. List of BMW engines - Wikipedia

    en.wikipedia.org/wiki/List_of_BMW_engines

    BMW is well known for its history of inline-six (straight-six) engines, a layout it continues to use to this day despite most other manufacturers switching to a V6 layout. . The more common inline-four and V8 layouts are also produced by BMW, and at times the company has produced inline-three, V10 and V12 engines, BMW also engineered non-production customised engines especially for motorsports ...

  8. Squawk - Wikipedia

    en.wikipedia.org/wiki/Squawk

    Squawk code (more formally transponder code), a four-digit number sent out by an aircraft's transponder, see Transponder (aeronautics)#Transponder codes Squawk virtual machine , a Java virtual machine for small devices, written mostly in Java programming language

  9. BMW 3 Series (E90) - Wikipedia

    en.wikipedia.org/wiki/BMW_3_Series_(E90)

    The fifth generation of the BMW 3 Series range of compact executive cars is designated under the model codes E90 (saloon), E91 (estate, marketed as 'Touring'), E92 (coupé) and E93 (convertible). The model was introduced in December 2004, [ 8 ] and produced by BMW until October 2013 and is often collectively referred to as the E90, E9x, or ...