What is it? Who operated it? From when? Who built it?
Well, experts, what do you think?
BV mobile test bench in operation
Bingo! The only question left is who built the test benches and when the project began. Locked for you.
Thyssen Gmbh 1938
Twice no.
B.V. Aral 1937
B.V. did not build the mobile stations itself.We are looking for the manufacturer of the chassis and bodywork. The first ones were built before 1937.
If you can unblock it, you won't have a plus
In 1935 those cars were unsed by the German ONS or NSKK during the Dreitage-Mittelgebirgsfahrt for scrutineering. At least 8 similar lorries were built.
I had no intention of unlocking the task. So Knewit was a little hasty.
I don't have any information about their use by ONS or NSKK, but either way, the first mobile test benches were built before 1935 and there were ultimately significantly more than eight.
So: let's continue, Bill!
You can open it; I have nothing more on the subject.
That's a pity. I'll unlock it, then.
Up to the Professionals.
I only know that the later ones were built by a company "Peter Bauer".
Not sure about those early ones though...
Over the years I found some photos of those mobile motor test stations:
:applause: Yes, all mobile test benches were built by Peter Bauer, Cologne. Both the pre-war and post-war versions. Locked for gobmotorix, to mention the starting year of this project.
Thanks for the pictures, some of which I hadn't seen before.
grobomtorix, are you still on the ball here regarding the release date?
Unlocked
Quote from: sichel on November 10, 2025, 08:01:26 AM:applause: Yes, all mobile test benches were built by Peter Bauer, Cologne. Both the pre-war and post-war versions. Locked for gobmotorix, to mention the starting year of this project.
Thanks for the pictures, some of which I hadn't seen before.
My earliest source was from 1935. That´s all I can say.
The project was initiated earlier.
The first of these mobile test benches was put into operation in 1932.
Grobmotorix has already described the project in great detail, including various photos. Therefore, I consider the task solved and he deserves the point; the three-year difference in the start date is no longer significant.
By 1939, P. Bauer had manufactured 50 of these test benches for BV and BV-Aral.
For the tests, the vehicle was driven with the drive axle on rollers connected to a Junkers water vortex brake (photo 2). Ignition systems were checked, compression was measured and carburettor settings were adjusted. Finally, fuel consumption was measured. More than 100,000 adjustments per year are likely to have had a significant advertising effect.
The rollers could be loaded with a maximum axle load of 4 tonnes. This meant that medium-duty trucks (photo 3) or buses (Grobmotorix collection) could also be tested.
After World War II, 25 test benches were still available. These were supplemented by 16 simpler, non-self-propelled versions (photo 4).
From 1955 to 1958, P. Bauer manufactured a total of 30 new test benches with a significantly more elegant design (photos 5 and 6).
This project was abandoned in 1964.