Prestigious Ludwig Prandtl-Ring for Emeritus Professor Egbert Torenbeek

News - 14 September 2016 - Department of Communication

Faculty of Aerospace Engineering Emeritus Professor of Aircraft Design Egbert Torenbeek was awarded the prestigious Ludwig Prandtl-Ring by the Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR) on 13 September 2016 in Braunschweig, Germany. The Prandtl-Ring is DGLR’s highest scientific award and is awarded annually for outstanding contributions in the field of aerospace engineering.

Torenbeek was affiliated with TU Delft's faculty of Aerospace Engineering as a lector from 1978 to 1980 and appointed as full professor in Aircraft Design in 1980. In the three years prior to his retirement in 2000, he was vice-rector of the university.

In the laudatio, DGLR acknowledges Torenbeek as ‘a worthy recipient of the Ludwig Prandtl-Ring’, considering his life’s work as a great contribution to the aeronautics community.

Many of his published works are praised, among which Synthesis of Subsonic Aircraft Design (also known as “Torenbeek”) – the first scientific book on aircraft design to describe design as a multidisciplinary task and considered a standard work for over 30 years.

DGLR further recognises his contribution to TU Delft’s emergence as one of the top universities in the field of aeronautics, as well as his innovative approach and excellent teaching skills.

We sincerely congratulate Egbert Torenbeek with this extraordinary honour.


Ludwig Prandtl (1875-1953) is widely recognised as a pioneer of modern fluid mechanics, one of the essential pillars of the scientific development during the first half of the twentieth century enabling the realisation of the aeronautical technology. The Ludwig Prandtl-Ring has been awarded yearly since 1953.