Rc Helicopter Flying Tips - Bookshelf
Estimate the autorotative rate of descent in forward flight at sea level conditions for a small light-weight helicopter with the following characteristics: Weight = 1370 Ib, rotor radius = 1 2.6 ft, rotor solidity = 0.30, tip speed = 700 ft/s. 5.8. Describe the procedure a pilot would ... from hover to forward flight? Dingeldein, R. C. 1954.
About this book
Written by an internationally recognized teacher and researcher, this book provides a thorough, modern treatment of the aerodynamic principles of helicopters and other rotating-wing vertical lift aircraft such as tilt rotors and autogiros. The text begins with a unique technical history of helicopter flight, and then covers basic methods of rotor aerodynamic analysis, and related issues associated with the performance of the helicopter and its aerodynamic design. It goes on to cover more advanced topics in helicopter aerodynamics, including airfoil flows, unsteady aerodynamics, dynamic stall, and rotor wakes, and rotor-airframe aerodynamic interactions, with final chapters on autogiros and advanced methods of helicopter aerodynamic analysis. Extensively illustrated throughout, each chapter includes a set of homework problems. Advanced undergraduate and graduate students, practising engineers, and researchers will welcome this thoroughly revised and updated text on rotating-wing aerodynamics.
These are gold mines of good information on new products, flying techniques, and modification tips. I've gotten a lot of help from the "Chopper Chatter" column in Model Builder magazine. RC Modeler also runs an excellent helicopter column .