I've timed several 8 hr LSF slope flights and 1 flight over 8 hours that was Thermals. Gary Itner did it about 20 years ago with his 16', 3 ch. XC sailplane. There have been longer slope flights but no one has done more than 8 hours in thermals in this country with the possible exception of Wurtz on his WR X/C flight.
Long TD flights are no fun after a couple of hours. And they are certainly not easy. JDK RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.