Nirvana 2 RTR Red Competition mylar sails withstand up to 20 knot 23mph 37kph winds and sailing speeds up to 6 knot 95 percent ready-to-sail simple assembly in just minutes from opening the box Rigid carbon fiber mast with quick release foot for easy portability Radio compartment is self-sealing for water tightness Fully installed FM 2-Channel digital proportional radio provides accurate sail control and underway