TY - JOUR AB - Based fundamentally on the ‘Energy Method’ approach to helicopter performance calculation, a method is presented for calculating performance of a design in the project stage. In another form, less suitable for project work, the equations have been used for performance estimation by the writer for several years. They were found to give better agreement with flight test and rotor tower results than any other method tried. It is believed that the method gives quicker and more accurate results for project work than any so far developed. VL - 25 IS - 11 SN - 0002-2667 DO - 10.1108/eb032356 UR - https://doi.org/10.1108/eb032356 AU - Payne P.R. PY - 1953 Y1 - 1953/01/01 TI - A Method of Estimating Helicopter Performance: The Calculation of an Estimated Performance at the Project Stage T2 - Aircraft Engineering and Aerospace Technology PB - MCB UP Ltd SP - 344 EP - 348 Y2 - 2024/05/10 ER -