Sebelum kita berkongsi berita di FB,
twitter dsbnya, fikir betul-betul, adakah kita penyambung kebenaran
atau penyambung kebatilan. Kalau tak pasti, lebih baik tinggalkan.
Tanganilah isu MH17 ini dengan ilmu dan taqwa, bukan emosi. Fahami
aspek penerbangan, teknikal, radar, perisikan, peperangan elektronik
yang memerlukan kefahaman yang baik dalam Bahasa Inggeris. Jika tidak
baik kita sebarkan artikel dalam FB, twitter ajak orang solat, dengar
kuliah ilmu, beri sedekah, berbuat baik kepada ibu bapa, sedekahkan
Al Fatihah kepada mangsa MH17.
Malaysia Airlines flight MH17: What
would it take to shoot down passenger jet?
18 Jul 2014
To shoot down a commercial airliner at
cruising altitude would require advanced anti-air missile systems.
Among the easiest systems to employ would be man-portable air-defense
systems, known as MANPADS. But some experts ruled out that
possibility.
MANPADS have been known to target
commercial aircraft – but usually only during takeoff and landing,
when the jets are moving the slowest and are the most vulnerable.
Pro-Russian separatists have denied
allegations that they brought down the aircraft, saying they lack
weapons systems that would be able to target an airliner at a
cruising altitude near 30,000 feet.
Both Russia and Ukraine have moved
advanced air defense systems near their borders in recent months,
including the SA-17 Buk 2. The SA-17 is a surface-to-air missile
system that can be fired from either a wheeled or a tracked chassis
and can engage aircraft at anywhere from altitudes of roughly 32 feet
to 78,000 feet, putting flight MH17 easily within range.
The SA-17 guides its missiles via a
radar array, unlike MANPADS, which mostly use a heat signature for
guidance.
However, Swiggart explained, advanced
surface-to-air systems like the SA-17 are transponder aware, meaning
they can detect if they are targeting an airliner. Civilian airlines
are constantly broadcasting a four-digit transponder, known as an IFF
code, that designates aircraft as civilian. The code would be
detected by the SA-17 if the weapons system attempted to lock on or
"paint" MH17.
"It's easy to tell the difference
between a civilian aircraft or not, if you're a skilled radar
operator," Swiggart said.
Swiggart added that airliners fly
well-established routes at regulated speeds.
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