Superman was able to leap tall buildings at a single bound.

For the rest of us mere mortals, getting down from a skyscraper is a lot more cumbersome — particularly in an emergency when stairwells and elevators can’t be used.

Sharon-based Winner Global Defense LLC rolled out –– or to be more precise, lowered out –– a new product Friday designed to allow people to escape when trapped in high-rise buildings. Using Israeli technology created by DOUBLEXIT Ltd., SAFEXIT uses a cable and harness system that lowers people from buildings at a controlled speed of about 3.3 feet a second.

Escaping from a burning skyscraper became one of the most heart-rendering moments in the 9/11 terrorist attacks when office workers jumped from the World Trade Center in New York because it was the only way to flee scorching flames.

A similar scene was observed more recently when a tall office building caught fire in Moscow.

“If this had been there, they could have been saved,’’ said Steve Kohler, president of Winner Global.

The company secured the North American marketing and assembly rights for the product.

By strapping into one of two harnesses at either end of a coated steel cable, people make their escape by window or balcony and are automatically lowered by the safety device.

When the first person reaches the ground and disengages from the harness, a second person at the other end can begin his descent. Since the system can carry loads between 68 and 336 pounds, it allows adults to hold a child while being lowered to safety.

Capable of reaching building heights of up to 1,155 feet, the product operates without electricity and is designed to be housed within a specially designed door or can be installed into walls.

“Theoretically, it’s only limited by the length of the cable,’’ said Mike Gjede, Winner Global’s vice president. Gjede is a retired brigadier general and the former commander of the Air Force Reserves 910th Airlift Wing at the Youngstown Air Reserve Station in Vienna.

Each SAFEXIT device, costing $10,000 to $12,000, is designed for a specific height, so there would have to be at least one unit on each floor in a building. Accessories can include such features as lights, gas masks and fire-retardant blankets.

Just how many people could use the product in a fire would depend on the building’s height and, most importantly, how much time elapses before the fire reaches them.

“I wouldn’t anticipate this would be evacuating a ballroom,’’ Gjede said. “But certainly you wouldn’t see hundreds die either.’’

If sales are a hit, the operation could employ a couple hundred within three years, Kohler said. As part of Winner International, also based in Sharon, the product would be assembled at the company’s industrial park in the city, the former Westinghouse Electric Corp. plant along Sharpsville Avenue. It’s expected local assembly will begin in the fall.

Having worked on the project for 2 1/2 years, Kohler said this isn’t a fun-filled product designed for weekend thrills.

“This device is designed to be a device of last use,’’ he said. “The hope is you never have to use it but if you have to, you can.’’

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