An exoskeleton, sized to fit the user, who is belted to it securely and snugly.
The arms are hinged at the fore and back of the clavicle; again at the shoulder, elbow, and lastly at the wrists. All joints are reinforced. Along the clavicle and humerus is an axle with gearing at the shoulder and a
spot a little lower then the back of the neck.
Along the ulna and radius is a screw-gear that transports a high-tensile spring. This is retracted back along the screw gear, and past the elbow on an extended rail, 20 to 30 centimeters long. Along the outside of the arm is a coil of rope, which is held in a spool with a small clutch likewise attached to the gearing beforehand illuminated.
The elbows are reinforced and internally contain clutches that drive the screw gear.
On the bottoms of the feet platforms are sharp spikes, suitable for traction.
On the back of the exoskeleton is mounted a 20-hp kawasaki motorcycle engine. This is electrically started with a button on the chest, and operates at full throttle.
There are two clutches, one for the left arm, and one for the right. They are maintained by a cable that goes down to the back of the hand, originating at the wrist and inserting behind the base of the middle finger. A glove compresses and retracts the cable for clutch response; a clenched glove means an open clutch.
If both clutches are open the throttle is reduced via a valve in the engine; this is fed via another cable that goes over the clavicles and to the back.
Mounted on both left and right forearms are two stainless steel grapplnig hooks.
To operate, start the engine. The exoskeleton will then have the power to retract and launch harpoons or grappling hooks. To fire, simply wait for the harpoon screw to fully pull back the grappling hook; it is automatically triggered and launched at full spring compression. This happens at a steady pace once the engine is fired up. Once a bolt is launched, the brake is released from the rope spool. There is a slight drag on the rope spool to dampin the spin. Once the rope spool stops spinning, the brake acts as a clutch and engages the spool, which then hauls back the grappling hook.
Good aim can ensure the exoskeleton and rider are pulled towards the grappling hook, not the reverse.
The hooks are called 'hooks' but are not actually hooks. They are friction-based and embed best in wood. They are retracted via an opposing force (i.e. the other grappling hook engaging) and are best applied in surfaces that will not retain penetrative objects.