Roundie Crash Test

1953-1961: 180, 180a, 180b, 180c, 180D, 180Db, 190, 190b, 190D, 190Db, 220a, 220S, 220S cabrio., 220S coupe 220SE, 220SE coupe, 220SE cabrio.
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cuisses
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Roundie Crash Test

Post by cuisses » Mon 19 May, 2014 9:02 pm

I'm not sure if this has been posted here before (I couldn't find it in a search), but this video was posted on youtube last month

https://www.youtube.com/watch?v=yqFNMzc3sp8
David Williams

W108 280SE 4.5 (Papyrus White and Palomino)

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70499
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Re: Roundie Crash Test

Post by 70499 » Mon 19 May, 2014 9:30 pm

Ouch! The ole steering wheel in the face trick.
Brad.

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TheMadRacoon
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Re: Roundie Crash Test

Post by TheMadRacoon » Mon 19 May, 2014 10:05 pm

I have to say I am actually quite impressed, steering wheel notwithstanding. Did they have collapsible columns - I see the dummy wasn't speared!

The vehicle is obviously used (and probably 50 y.o. and seems to have rust issues) BUT the crumple zone worked to dissipate energy AND the passenger cell was intact - in fact the doors aren't deformed, nor the A-pillar, which is not what I see on modern vehicles subjected to similar tests.

It reminds me of a W116 I came across on a walk many years ago. Busy Melbourne suburban road (Blackburn Rd or Stephensons Rd) and on the nature strip, pointing with the traffic, was an immaculate W116 backed into a rather large tree. The boot was wrapped around the tree, so that the tree caused it to form a V-shape and the tree trunk was hard up against the rear window. The front was totally demolished, pushed back to the front windscreen. The passenger cell was totally intact. Not one window or windscreen was cracked or shattered. The A-pillars and doors looked perfect. It was amazing to behold. I think it was red or 'burnt orange' in colour....maybe a forum members?

I also have close family who encountered a semi cutting across them, swung to avoid it, hit a large boulder (Dick Johnson style), broke the steering linkages (obviously) and headed back into the semi between the prime mover and trailer. Two adults and two little kids. All walked out. What's more amazing (and not condoned) is that this was in the early '80s in another country where seatbelt useage was about 0% - and they certainly weren't wearing seatbelts. A W116 280S (manual, carburettor). The car was rebuilt and driven for many years after.
Emad,
TheMadRacoon
1975 350SLC Astral Silver (725) / Blue (2012, 284,900 km - present.... a real Benz, getting better and better)
1988 190E Deep Blue (900) / Cream (2006, 190,000 km - 2007, ~ 215,000 km .... FSH and still spent big $$$)
1974 280E Reed Green (860) / Bone (1993, 316,700 km - 2004, ~490,000 km and still A1)

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cuisses
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Re: Roundie Crash Test

Post by cuisses » Mon 19 May, 2014 10:34 pm

The vehicle is obviously used (and probably 50 y.o. and seems to have rust issues) BUT the crumple zone worked to dissipate energy AND the passenger cell was intact - in fact the doors aren't deformed, nor the A-pillar, which is not what I see on modern vehicles subjected to similar tests.
The only problem I have with this is that the Finnie was supposedly the first car with crumple zones. However, if you look on the web there are a lot of sites saying that the Ponton had them, so finding a definitive answer is tricky. It certainly looks from the video that there is a front crumple zone and a safety cell, so in practice the Ponton behaves like a car with this safety feature. Some time back Chris at MB Spares was trying to convince me to buy a Ponton. I objected that it had no crumple zones, to which he replied "The other car is your crumple zone." :laughing6:
David Williams

W108 280SE 4.5 (Papyrus White and Palomino)

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Hendrik
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Re: Roundie Crash Test

Post by Hendrik » Tue 20 May, 2014 10:57 am

I don't have a definite answer regarding the crumple zone in a roundie, it may be that it was a by product of the unibody construction.
We do know that in 1952 Daimler-Benz was granted a patent for the crumple zone, the roundie was introduced in 53, so there may have been early development work but perhaps not fully built into the car?
http://en.wikipedia.org/wiki/Crumple_zone
http://media.daimler.com/dcmedia/0-921- ... 0-0-0.html
http://www.mbzponton.org/valueadded/other/whyponton.htm
http://www.oocities.org/motorcity/speed ... ponton.htm

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TheMadRacoon
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Re: Roundie Crash Test

Post by TheMadRacoon » Tue 20 May, 2014 2:24 pm

Luckily recent safety developments have included anti-submarining seats (all 5 of them)

Image

http://autoworld.files.wordpress.com/20 ... -img_1.jpg
Emad,
TheMadRacoon
1975 350SLC Astral Silver (725) / Blue (2012, 284,900 km - present.... a real Benz, getting better and better)
1988 190E Deep Blue (900) / Cream (2006, 190,000 km - 2007, ~ 215,000 km .... FSH and still spent big $$$)
1974 280E Reed Green (860) / Bone (1993, 316,700 km - 2004, ~490,000 km and still A1)

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GrampiansMerc
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Re: Roundie Crash Test

Post by GrampiansMerc » Tue 03 Jun, 2014 4:49 pm

Eeek! I thought that was a person in there, until I saw the front on images. - a very realistic dummy
But yes it certainly crumpled very well.
Why crash test a 50+year old car - with rust issues etc.... :think:
1980 w123 300D Silver sedan
1980 w123 300TD "Anna" - sold
1979 300D - sold, gone to be restored

2006 Musso - Korean Mercedes, 5 cylinder diesel - Blown head gasket, buggered motor, grrrrrrr (I will stick with German Mercs)


I'm just a simple man trying to make my way in the universe

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Hendrik
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Re: Roundie Crash Test

Post by Hendrik » Tue 03 Jun, 2014 5:33 pm

GrampiansMerc wrote: Why crash test a 50+year old car - with rust issues etc.... :think:
https://www.youtube.com/watch?v=NpsVqW- ... re=related
This one comes with explanation
http://forum.w116.org/auto-torque/merce ... rash-test/
Obviously no one at the http://www.mbig.de/ wanted to donate a good roundie

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