Be very wary of buying the Swallow. Mine broke up in flight and wrecked my YS91 and the Rx. My shop refuses to stock them any more after so many customers came back and complained that their's broke up in flight. There have been many posts on threads on RCU about the Swallow breaking in flight or on landing. I saw the UK distributor's Swallow break on a gentle landing! It flies nicely but it's not safe.