Description:

In order to validate and develop computational methods for the prediction of airloads high quality test data is required. The test performed by Caradona and Tung provided a 'benchmark' for such data in hover, which has been used in over 160 reports and papers.

Caradonna, F. X., and Tung, C.: Experimental and Analytical Studies of a Model Helicopter Rotor in Hover. NASA TM 81232, Sept. 1981 (Only the month and year of this milestone are valid)

Source: "Milestones in Rotorcraft Aeromechanics", Johnson W., NASA/TP-2011-25971, May 2011, Page 53