The Ballooning manual ,Pilots,Retrieve Crews & Observers,by Bob & Carol Howes, VGC ,176 pages. Really comprehensive manual covering all aspects of the s****t,packed with pics,diagrams etc. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&sspagename=STRK%3AMESE%3AIT&viewitem=&item=320112904301&rd=1&rd=1