Military Tech

(Credit: iRobot)

The military sees a need for a flying robot that can swoop into an enemy position, transition to wheel or track mode, and then get busy icing bad guys--something along the lines of the Griffon UGV/UAV Air Mobility System.

While unmanned aerial vehicles (UAVs) can wing in quickly to reconnoiter or attack enemy positions, they can't follow a target into a cave or a building. Unmanned ground vehicles (UGVs), on the other hand, can enter structures, search for targets, and examine them at close range, but they're slower than UAVs, have less range, and are limited by rough terrain.

Awhile back, the U.S. Army Tank-automotive and Armaments Command and the Armaments Research, Development, and Engineering Center funded an iRobot team led by Brian Yamauchi and Pavlo Rudakevych to develop a solution. They came up with the Griffon (PDF), an iRobot PackBot prototype strapped to a gasoline-powered, propeller-driven, radio-controlled, steerable parafoil system. The UVG hangs from a superstructure on which is mounted a 32cc Fuji engine behind an 18- by 8-inch propeller.

For the parafoil, the team considered a wide range of extreme sport kite surfing and traction wings but settled on the 11-meter Ozone Razor. This parafoil is attached by two hang points on the sides, with two arms to control the wing surface and a quick release to jettison the whole contraption on touchdown.The PackBot's on-board computer does the driving and controls the gas. Video, audio, and autonomous ground GPS navigation is also a standard PackBot feature.

The kit is designed to be man-packable and could be used by civilian teams for search-and-rescue in hazardous terrain in addition to military recon and strike missions in urban environments, according to the researchers.

A prototype was tested a few years age and apparently worked well, although it wasn't much to look at. It took off, soared up to 200 feet, landed, and then moved out at speeds of more than 20mph, all under remote control--a first, according to the inventors Yamauchi and Rudakevych. Unfortunately, that's the last it was heard of. The concept deserves another look; it has the makings of a great DARPA challenge.

(Credit: Metal Storm)

After years of development, a new class of weapon that uses computer-controlled electronic ignition instead of primers to fire projectiles may be finally taking its much coveted place in the U.S. military inventory.

Brisbane, Australia-based Metal Storm has delivered a four-barrel weapon to the Naval Surface Warfare Center for testing that uses a small electrical current instead a conventional firing pin to deliver stacked rounds at an astounding rate.

How astounding? Try 1 million rounds per minute. That's the rate, by the way, not the volume; still, there's no way you want to be anywhere near the wrong end of one of these puppies.

One version, the Redback, features a remotely operated 40mm that can automatically track targets by slewing around at almost 2 complete revolutions per second, according to the company. "The employment of Metal Storm's stacked round technology for a U.S. military weapon system is a huge step for us," Metal Storm CEO Lee Finniear said in the company's press release.

Electronically fired weapons and the general concept have been around for awhile--Austrian company Voere offers an electric, bolt-action hunting rifle--but nothing has approached Metal Storm (PDF). Metal Storm weapons use multiple, "lightweight, economical barrels" mounted in pods on a variety of platforms that can fire a wide selection of munitions.

The projectiles are stacked in-line in the barrel--nose to tail--so there are no magazines, no shell casings, and no mechanical components. This makes them ideal for unattended area denial or picket duty. They are also easily adapted to light vehicles and robot platforms. In fact, the company just signed an MOU with iRobot Government & Industrial Robots to combine its robot platforms with Metal Storm's scalable systems.

"Together with Metal Storm, we aim to develop a superior next-generation weapons platform that ensures absolute safety and always places a human in the decision loop," iRobot's Joe Dyer promised in announcing the agreement. "When you are talking about weaponizing robots, there is no margin for error."

Especially at a million rounds per minute.

(Credit: irobot)

The company that ate the robot market, iRobot, has just received an order from the U.S. Army for 40 more PackBots, which means that will soon be more than 1,000 of these robots on active duty around the world.

Units ordered include some equipped with the ICx Fido Explosives Detector. Fido allows an operator to detect explosive vapors and particulates from munitions or IEDs from a safe distance using a game-style controller.

The 510 model was also included. It can lift 30 pounds and scoot around at almost 6 mph, climbs stairs, roll over rubble, rocks, mud and snow on polymer tracks that use a patented flipper to stay right-side-up. All around it's one tough little SOB, as seen in the video below.

Plus, the Army has ordered 300 new high-performance radios to retrofit existing PackBots to increase the robot's operational range.

The Bots, plus spare parts and other equipment, will be delivered to the Army's Robotic Systems Joint Project Office at Redstone Arsenal, Ala., by the end of next year. The contract is worth $8.8 million, bringing it to a total of $45 million in orders to date, according to the company.