Powered Rope Ascender (IMAGE) Office of Naval Research Caption Office of Naval Research Command Master Chief Charles Ziervogel the Powered Rope Ascender, which was originally designed for use by soldiers in urban combat and cave exploration. ONR's TechSolutions sponsored the handheld climbing tool, which allows warfighters to ascend and descend vertical surfaces quickly, at a rate of six feet per second. Credit Office of Naval Research photo by John F. Williams/Released Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.