Jan 312012

A self-guiding bullet that can steer itself towards its target is being developed for use by the US military.

The bullet uses tiny fins to correct the course of its flight allowing it to hit laser-illuminated targets.

It is designed to be capable of hitting objects at distances of about 2km (1.24 miles). Work on a prototype suggests that accuracy is best at longer ranges.

A think tank says the tech is well-suited to snipers, but worries about it being marketed to the public.

Work on the project is being carried out by an Albuquerque-based subsidiary of defence contractor Lockheed Martin on behalf of the US government.

The current prototype involves a 4in (10cm) bullet which includes an optical sensor in its nose to detect the laser. This information is then processed and used to move motors within the bullet which steer tiny fins, altering the ammunition’s path.

“We can make corrections 30 times per second,” said researcher Red Jones.

“That means we can over-correct, so we don’t have to be as precise each time.”


The team has carried out both field tests and computer simulations, and says “engineering issues” remain. However, they add that they are confident of bringing the product to market.

Experts say there would be great demand for the innovation on the battlefield.

“One of the big successes in Libya was that the accuracy of the munitions used was much higher than in previous campaigns,” Elizabeth Quintana, senior research fellow at the Royal United Services Institute think tank told the BBC.

“97% of Nato’s weapons hit their target to within about 2m (6.5ft). But that was achieved through air munitions.

“This would be a revolution for ground forces, and may help further cut down on civilian casualties in future conflicts.”

Unlike most bullets the self-guided prototype minimises spin, aiming to fly like a dart.

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