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Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

(OP)
Not quite an 'engineering disaster' except for the idea that someone actually built a car that was capable of doing something like this. I suspect that we'll all soon learn that, while high speed certainly contributed to this incident, other factors played a role, perhaps some sort of 'substance' abuse, be it liquid-based or otherwise:

Porsche launches into New Jersey building's second floor leaving 2 dead, police say

https://www.bing.com/images/search?view=detailV2&a...

John R. Baker, P.E. (ret)
EX-Product 'Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

That "No Parking" sign must have been REALLY stiff!

Over 40 years ago, our car was vaulted into the air after being rear-ended by a drunk driver. We ended up on our top 100 feet from the point of impact. The impact threw us up and over the concrete median to the left and twisted us in air. Need to say, we made the papers here and I finally went "airborne", but not the way I imagined.

Hard to imagine what happened, but strange things do. He should have been racing in another brickyard though... and had to be going against traffic from what I see... May have actually caught a little air too...

Mike McCann, PE, SE (WA, HI)


RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I live about 10 miles from where this occurred.

The story I heard was they were going about 160 mph, which might put a lot of the head scratching over "how" to rest. I'm not sure how they could have possibly gotten 160 on that part of that road, but that's what I heard over the weekend. I'm sure some more verified details will come out.

Edit: now that I looked at it myself, I think it was entirely possible to get to 160 there coming off that turn, going down hill. Looks like they didn't turn, crossed the median, went into the grass on the other side, and got air off the drainage ditch lip or rise on the other side of the road to me.

Andrew H.
www.mototribology.com

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Porsche: Watch me hit this house.
Train: Hold my beer:


RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

This shows the skid marks and path of the vehicle:
https://www.nbcnews.com/news/us-news/porsche-launc...

Sucks for the passenger and his family. Darwin award for the driver.

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Anyone have a map link?

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I think it flipped. The marks are too far apart to be a frontal skid or loop.

It's just hit the kerb and gone airborne rolling over.



Can't see this going 160 - Not really enough distance to get to that sort of speed. - Google map 1466 Hooper Avenue, Toms River, New Jersey, USA

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I was skeptical about the speed too. I live right by there, I drive that road. As soon as you get past the mall, and if you are willing to blow the traffic lights, you've got just under a mile of fairly straight road to let loose. I don't know if 160 is realistic, but you could definitely get well over a hundred in the right car on that stretch.

Andrew H.
www.mototribology.com

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Yeah, guess so. Energy of a Boxster going 160 mph = 3.4 MJ Potential energy of Boxster at 30 ft = 0.12 MJ. so plenty of kinetic energy to go around for a couple of bounces; it just had to get the proper combination of bounces. The car didn't travel too far after going through the wall, so most of its KE was consumed by then, apparently.

I've actually stayed in Tom's River for a couple of days a long time ago; it's very close to the naval facility at Lakehurst.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

IRstuff,
So you have first hand knowledge of how close I live to this accident then wink

Andrew H.
www.mototribology.com

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

One of the links above said the police didn't have a speed estimate, and the driver and passenger are dead, so any speed that pops up at this point is likely just somebody's wild guess.
If they have security footage, that could help on speed. If they have sound, you might be able to deduce speed from that.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I don't know how much data Porsche stores in their "black box" but my Vette keeps the last 5 seconds which would be more than enough to know how fast it was going.

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

It is about 150 feet in the air from the curb to the structure and the vehicle was still over 10 feet in the air when it hit.

Edit: The height of the vehicle is close to 15 feet based on the brick coursework. The building is situated about 5 feet below the road from Google Earth. That's almost enough data to work out the launch speed.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

The Boxster's rated top speed is 160 mph, so that's probably where the number comes from, according to http://accelerationtimes.com/models/porsche-boxste... The same page says that it can hit 120 mph in a half-mile, so it could have been going more than 120 mph.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

A speed of 120mph seems to make more sense than 160 from the kinematics; unless the vehicle was still on the way up when it struck the building which would be harder to believe.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

If it flipped, that could radically change the trajectory; it only needed around 35 mph vertical velocity to get to the second floor.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I saw it reported on the TV news. The car was wheels up in the building.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

That might just be coincidence; the skid marks show it was going mostly sideways, but if it hit a curb, it could have caused the lateral motion to turn into a tumbling arc. It landed on its roof, but it must have hit the wall mostly with the roof, close to the rear, since there's no obvious buckling of the chassis from a side hit:

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I think it was going slower than you guys think. When a car gets into an accident at over 100 mph, the car is obliterated just like a bomb went off. 160 mph is 2.5 time more energy than 100 mph. I think it got a "lucky" bounce and wasn't going close to that fast.


Here is a mythbusters vid of a 100 mph crash. Even if it tumbled into the building, in my opinion, it would have been torn more up.

https://www.youtube.com/watch?v=XFkn37BDvTw

A vid of 120 mph

https://www.youtube.com/watch?v=R7dG9UlzeFM

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Those clips were into a very solid barrier, not a relatively weak brick wall. Hitting flat roof to the wall would not cause the car to be obliterated.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I was involved in a job where a Chevy Tahoe basically drove right thru a tract house from a dead stop. The house offered little in the way of any resistance.
I imagine if the Boxster was traveling at the reported velocity, it would have achieved more penetration.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

3dDave,

I just don't think it was going that fast. The car is going to slow down from traction with the road, going up into the air and turning kinect energy into potential or rotational, or colliding with stuff. If the car hit the building at 10 meters, that would shave off around 30 mph. The tire marks make it look like the car was sliding so there wasn't much traction at that point. If the car is air born, there is nothing slowing it down. I am not an expert but I don't see anything slowing it down substantially if it was going 160 mph. I think it just hit the curb and cartwheeled into the building and at nothing close to 100 mph.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

63 mph initial -- 23 mph vertical to hit 23 ft max height with 15 ft at impact and 59 mph to span 150 ft. Loss in velocity from horizontal skid and loss from hitting whatever launched the car into the air, so 100 mph sounds reasonable. Hang time of 1.7 seconds.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

1/4-mile speed for the Boxster is 105mph... from a standstill. Taking a corner at 30mph+ and stomping on it, the Boxster wouldn't have any problem hitting the 120mph+ speed bandied about after a full mile.

Dan - Owner
http://www.Hi-TecDesigns.com

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

Knowing a reasonable launch angle would help. I wonder if there is test data of vehicles launching off an F curb.

Edit: All this discussion should be academic as the ACM records speed prior to one or more events. However, according to a colleague, Porche does not provide access to the data.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

That NBC video said something about a ditch and launch from that. There appears to be some sort of depression before the parking lot that could have been used as a launching ramp. The street view isn't terribly helpful.

RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

I think they have assumed too much! Cars can’t fly!

The building just goes up and down!

Mike McCann, PE, SE (WA, HI)


RE: Porsche Boxer goes airborne and crashing into the SECOND floor of a real estate office...

IRstuff, for what it's worth, I've paced it off at about 200' +/- That's based off of the pic of the skid mark, lining up the perspective in street view, and ID'ing the stripe for a landmark.

https://www.google.com/maps/@39.9950664,-74.171104...

It looks like the eastbound lanes are elevated above the westbound lanes. It probably would have hopped a little crossing the median so it was probably floating before it hit the F curb rear wheels first and launched. In this high-res pic you can see one of the rear wheels is missing and the other is sheered in half.


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