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Download the first file, Sailplane Calc. MS Excel required and it'll tell you that and more. Any help email [EMAIL PROTECTED] Curtis -- CloudyIFR ------------------------------------------------------------------------ CloudyIFR's Profile: http://www.rcgroups.com/forums/member.php?u=9050 View this thread: http://www.rcgroups.com/forums/showthread.php?t=507674 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. Email sent from web based email such as Hotmail and AOL are generally NOT in text format

