This would be an awesome Quad rotor

This would be an awesome Quad rotor !!!

Inspired by an eagle’s hunting ability, a group of researchers

 from the University of Pennsylvania have designed a Micro

 Unmanned Aerial vehicle (MAV) that can grab objects on

the fly very similar to an eagle snatching a fish from the

 water’s surface. The drone is a quadrotor, a UAV that flies

 with four spinning blades, like a helicopter. At first scientists

 studied how eagles catch their prey and then they attached

a 3-D printed claw on a motorized leg to the bottom of a quadrotor

 The bird of prey reduces the velocity of its claws in relation to its

 prey by sweeping its legs back at the point of impact, letting

 it grasp the target without slowing down. Since the MAV weighs

 just 500 grams, designers made an arm weighing just 158 grams

that attaches to a servo-driven swing to replicate the sweeping

motion in their robot and gripper. They also engineered a clever

three-fingered claw that can naturally conform to different shapes

but clenches and releases with just a single servo. Then these parts

were built using a combination of 3D printing and laser-cut ABS and

 then covered with Dycem (a kind of high-friction rubber that improves

 the robot’s grip). The practical applications of a flying claw may range

 from getting a Frisbee off a roof to picking up and retrieving tools

from construction workers at elevation. You can watch the MAV grab a

 light cylinder (27 g) at up to three meters per second in the following video

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