This is an interesting technology to help with special forces insertion via the air.
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=389357&in_page_id=1770
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=389357&in_page_id=1770