Daniel Speer: | Dear Mr. Stengel. First of all thank you very much for taking the time for this interview. You have your geographical roots – just like we have – in Bochum. What does still connect you to Bochum? |
Dr. W. Stengel: | Bochum is the city where I was born, where I grew up, where I went to school, where I played football in the youth team of Phönix Bochum, where I made my apprenticeship and it is the city in which I fell in love for the first time. I will always treasure Bochum for all those things. One needs to know your roots in order to find out what the future can bring to you. And one good reason to visit Bochum every now and again is my mother, who is 97 years old now and who is living together with my sister and her family in Bochum-Riemke. And furthermore there is still Bochum’s VFL. |
Daniel Speer: | Among experts you became an honoured member in IAAPA’s „Hall of Fame“ and even got awarded as an honorary doctor at Gothenburg University. For owners of theme parks you are known as the first worldwide reference if it comes to creating new rides, and rollercoaster fans awarded you with the unofficial title “The Guru of roller coasters”. What would you call yourself? |
Dr. W. Stengel: | After having married young and not being blessed with richness during my second study of engineering I had to work in Munich during semester-break. Sheer coincidence led me to an engineering office for which a bumper car for carney Schippers and van der Ville from Hamburg had to be calculated for the company Schwarzkopf. This small office was rather specialized in concrete than in steel. Therefore, Mr Schwarzkopf was put off over and over again. |
Daniel Speer: | Revolutionary ideas of yours like the “Klotoid-Loop” or the “heartline roll ” are now standard for the conception of almost every rollercoaster in the world. In what way is it possible to secure those pioneering inventions in order to prevent the stealing of your intellectual property? |
Dr. W. Stengel: | Well, I would call myself a good and creative engineer, who consequently followed his visions, who believed in his abilities, and who always gathered a good team around him. I tried to lead people in a way which gave them the feeling of being treated and paid fair. As a human being I tried to listen to them and to be tolerant and objective, in which I definitively not always succeeded. As a family-man I am very happy and content with my marriage, my three children and four grandchildren. |
![]() |
|
Daniel Speer: | As a competent engineer and an expert on your subject you are a member of many commissions which are appointing binding security restrictions for rides. What do you think of cooperating with people who are mainly used to theoretical work? |
Dr. W. Stengel: | No one should have any prejudices. But there is that German saying that can be translated: “Every theory is only gray!” In the 1960s we often sat together with a few engineers and passed the DIN 4112 for flying constructions very quickly. Nowadays, in my opinion, there are far too many external persons in those standards committees, a fact which not necessarily is increasing the speed and content their decisions. Security rules are there for the protection of the people, environment and moral values and are independent of any nationality. But on European level, and even on a world level, it is often tried to force through own interests which are formulated by non-experts. |
Daniel Speer: | Mr Wild, your son-in-law, has grown into the management of your world-wide known “Ingenieurbüro Stengel” in Munich. Among other projects he contributed in the development of the rocket coaster “Dragster” and “Kingda Ka”. To what extent do clients from all over the world accept the fact that “The Guru of Roller coasters” is delegating work to some degrees? |
Dr. W. Stengel: | Experts know and always knew that our achievements are always made by a team. Ideas, know-how and employees, who form a company’s capital, never do get lost. Besides, I’m still present in the office. |
<< Werner Stengel - Interview | Werner Stengel - Interview Part Two >>