books.google.com.vn - This book—prepared by the Federal Aviation Administration—is a resource without equal for glider pilots. Covering components and systems, flight instruments, performance limitations, preflight and ground operations, launch and recovery procedures, flight maneuvers, traffic patterns, soaring weather,...https://books.google.com.vn/books/about/Glider_Flying_Handbook.html?hl=vi&id=nxAnAgAAQBAJ&utm_source=gb-gplus-shareGlider Flying Handbook
