'Tai tai' of the aircraft

The US Department of Defense will install a type of audio device capable of detecting the flight path of bullets flying from the ground into the transport helicopter.

The US Department of Defense website says the device is called HALTT ( Helicopter Alert and Threat Termination ). It has the ability to determine the direction of the bullet, so that the pilot has enough time to avoid the bullet.

A transport helicopter of the US military in Afghanistan. (Photo: wired.com).

The HALTT uses advanced sensors to detect supersonic waves and the noise that bullets or missiles make when flying in the air. The device is compatible with transport helicopters and other helicopters. The tests show that HALTT works very well. The first HALTTs will be installed in transport helicopters in Afghanistan in October.

Theoretically, HALTT warns pilots when someone shoots at the helicopter even when the line does not point straight towards the aircraft. This is the most typical situation on the battlefield, because the pilot could not hear the sound coming from the bullet and could not even see the bullet. HALTT therefore informs the pilot of the specific direction of the bullet, so that they can avoid its flight path. If the helicopter carries a weapon, the presence of the HALTT will help the pilot to determine where the fire is coming from and to fire quickly.

Wired said the HALTT was built on sniper sniper sniper rifles by detecting sound from bullets. These devices came about a decade ago and their performance is improving. Tens of thousands of sniper sniper sniper rifles have been sent to Iraq and Afghanistan, where their role is getting bigger. The device provides information about the direction of the bullet, so that the user can locate the sniper. Most of these devices are manufactured in the United Kingdom, the United States, France and Israel.