Functional requirements for a software cost database

Cost estimation of software development and control of the cost during the development, are difficult due to the lack of useful cost figures from previous projects, and consequently due to the lack of an accurate cost estimation and management method. This report describes the results of the first phase of a study to develop a software cost...

Collection of supercritical aerofoils obtained with the NLR hodograph method

This report contains data of eighteen aerofoils, calculated with the NLR transonic hodograph theory. They give an impression about the possibilities of the calculation method for application in aerofoil design studies. The data are presented in graphical form. For two aerofoils also tabulated results are given.