Inventing The Turbojet Hans Von Ohain's Lost Interviews PART 2
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- Опубликовано: 5 сен 2024
- Rare lost interviews with German Engineer Hans Von Ohain, part 2
From the first flight (He 178) to the Heinkel He 280, and considerations on Frank Whittle.
➤PART 1: • Inventing The Jet Engi...
➤PART 2: • Inventing The Turbojet...
➤PART 3: • Inventing The Turbojet...
This series explores the different approaches of the German inventor compared to Frank Whittle, the British inventor who created the first working turbojet in April 1937.
Through a Q&A, you can spot the different philosophical approaches and marked differences in the means and support of the two inventors.
On one side, Von Ohain is being encouraged, funded, and supported; on the other side, Whittle is being ostracized, penniless, and often wholly blocked in his quest.
The British inventor had no patron of the stature of Heinkel, not a professor who introduced him to aircraft manufacturers, yet he managed to accomplish his goal before anyone else.
For reference, here is Whittle's documentary: • Genius Of The Jet | Th...
Von Ohain and Heinkel had the first flight of an aircraft powered by a turbojet in 1939.
that engine was mix-powered, centrifugal (Whittle), and axial.
Later in his life, Von Ohain finally admitted to having had access to Whittle's early work, something he initially denied or dismissed.
As a matter of fact, Whittle's work, which had not been shamefully secreted by his own government, had been copied and distributed across German universities and, therefore, accessible by Von Ohain.
Hans Joachim Pabst von Ohain (14 December 1911 - 13 March 1998) was a German physicist, engineer, and the designer of the first turbojet engine to power an aircraft. Together with Frank Whittle, he has been described as the co-inventor of the turbojet engine. However, the historical timelines show that von Ohain was still a university student when, in January 1930, Whittle filed his first patent for a turbojet engine. Whittle successfully ran his first engine in April 1937, some 6 months before von Ohain. Additionally, before designing the engine and filing his patent in 1935, von Ohain had read and critiqued Whittle's patents. Von Ohain stated in his biography, "My interest in jet propulsion began in the fall of 1933 when I was in my seventh semester at Göttingen University. I didn't know that many people before me had the same thought.". Unlike Whittle, von Ohain had the significant advantage of being supported by an aircraft manufacturer, Heinkel, who funded his work.
In 1935, von Ohain designed his overall engine layout. He based it for compactness on a centrifugal impeller (centrifugal or radial compressor) and a radial inflow turbine.
Ultimately, this configuration had too many shortcomings to be put into production; however, aided by the enormous resources of the Heinkel Aircraft Company, a developed version was sufficient to power the He-178, and on 27 August 1939, von Ohain entered history as the designer of the world's first gas turbine to power an aircraft.
Von Ohain stayed with centrifugal designs, contributing his research to Heinkel's other projects, such as the combined centrifugal/axial HeS8 and 011, but ultimately, none of his designs were put into production, and other competing German designers at Junkers and BMW, following the axial design layout saw their engines in production. However, they never solved some of the basic power and durability problems. Von Ohain, nevertheless, started the world's first jet engine industry in his homeland of Germany, with many prototypes and a series of productions built till 1945.
Von Ohain, having entered turbojet design sometime later than Whittle, began working on his first turbojet engine designs during the same period that Whittle was building his WU engine in Britain. Some have said that their turbojet designs are examples of simultaneous invention. However, von Ohain explains in his biography that in 1935, while his own patent was being prepared (and before he had begun construction of an engine), his lawyer gave him a copy of Whittle's patent, which he read and critiqued. As a result, he was forced to modify his own application so as not to infringe on Whittle's design.
The interviews will also settle some disputes and ignite others.
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➤PART 1: ruclips.net/video/Xfkaj9S29lA/видео.html
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Thank you for your hard work,That is for everyone else that makes this happen.Greetings from Redding,Ca. USA
Fabulous, well researched HISTORY.
Thank you,
Just imagine if Whittle had had the support that Ohain did?!!!!
Whittle was only recognized for his achievement after Ohain & Heinkel had proven that invention's technical feasibility. In a weird way we can be thankful how that specific part of history played out, otherwise Whittle might have ended up as yet another unrecognized genius with a great idea but no means to realize it.
Even with better funds for Whittle, by Britain sharing the jet engine design with the USA, the post-war aircraft industry would still have been dominated by American-made planes. Seems like the UK were way to cautious with funding development there both pre-war and post-war.
@@c0d3warrior Nope, The Whittle engine, as produced, first ran in April, 1937. Ohain did not produce an actual operational engine for an aircraft until later. He did make a model in '37 out of sheet metal to test the concept of a radial engine but it wasn't something that could be used in an aircraft or run for any length of time
@c0d3warrior Von Ohain's tests were secret, and so was the first flight in 1939, so much so that the Italians thought they had the first jet-powered flight in 1940 (if you can call the Caproni a turbojet).
Whittle knew nothing about Von Ohain's work, and quite frankly Von Ohain knew Whittle's work quite well, as the Germans copied his work, which was not protected by the British government, who largely ignored him, and distributed it across German universities, landing in the eager hands of young von Ohain. He initially reluctantly admitted to peaking at Whittle's work, but his assistant expanded the kind of access they had, so Von Ohain also admitted to a deeper interest in Whittle's work.
We just published an interview (never heard before) with Von Ohain. I urge you to watch it and listen carefully to his comment on Whittle referring to his work in 1935.
This is only part 2 of the interview, but in part 1, you can also learn how little understanding Von Ohain had of the benefits of turbojets. Whittle was ages ahead of Von Ohain. all you need to do is read his thesis from 1929.
By the way, the Americans were the first ones who truly recognized Whittle's genius.
@@Dronescapes Whittle's engine was far superior to the German's. Mostly because of reliability. The German design demanded alloys that didn't then exist in order to make the engine reliable and last for any meaningful operational hours.
Just so you know, I do not think you will find a place that celebrates Whittle more than this channel.
We have his bio, documentaries, unseen interviews, etc.
His engine was indeed far superior (at the time), and crucially and stupidly his brilliant work was ignored and ostracized for several years.
As we all know the axial turbojet, as predicted by Whittle himself, surpassed the centrifugal turbojet,many that was around mid 1950.
Despite what most people believe, Britain had been working and theorized about axial turbojets since the late 1920s, and overall, when it comes to turbojets,the had an edge over Germany. Being first as deployed the axial turbojet in the Me 262 meant nothing, as that engine, as you mentioned, was a joke (the aircraft itself was quite good).
Do you know the year of this interview or the source of the whole documentary?
I believe it was around 1985. The source is us and our friend, whos father filmed them. We contributed digitizing both Von Ohain, and Whittle original 16mm interviews, and the work was done at Pinewood Studios.
There is stil a 3rd reel that we need to publish (soon). Did you watch the Whittle's series of interviews as well?
@@Dronescapes Thanks! Yes, I watched Whittle as well! Fantastic job!
Thank you. I believe the Von Ohain’s interviews add interesting details to the story, including how he ignored, unlike Whittle, the true benefits of turbojets other than vibrations and comfort. They clearly had different goals in mind.
@@Dronescapes Yeah. It's always fascinating to see how breakthrough ideas can originate in different ways by different people for different targets.
He never invented it, but maybe the first to build one ?
@@kris8742 no the first turbojet to be build and the first one that was bench tested was Whittle’s, despite the utter lack of support he had (unlike Von Ohain).
Von Ohain and Heikel made the first turbojet powered flight, as obviously Heinkel, on top of providing Von Ohain with all the support and money needed, was also an aircraft manufacturer, therefore the kind of patron that Whittle could only dream about.
Interestingly the Heinkel He 178 was mixed powered, therefore incorporated Whittle’s invention as well, and you can hear how Von Ohain is carefully not mentioning that “small” detail.today we know that Von Ohain had access to Whittle’s work all along, copied and distributed across German Universities.
The British government did not even protect Whittle’s invention with secrecy. A shame!