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My 2016 after rear end collision.

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Old 03-23-2017, 03:58 PM
  #21  
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My guess is it is totaled. I was recently in a rear end hit that had no frame damage, no cab damage, only: one new bedside, new bumper, repaired tailgate, and a few new bedside structure pieces. It was $6k repair + $1.5k rental + $2k diminished value.
Old 03-23-2017, 03:58 PM
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Originally Posted by HawkCO
That damage could easily be from a 55 mph vs 0 mph collision, it all depends on the impact points. It looks like he was impacted square on the bumper and it forced the nose of the other vehicle down, allowing the F150's frame to absorb most of the damage, and I imagine the front end of the other vehicle is completely blown up. His truck also has plenty of damage, just not the clearly visible damage like body panels crushed and torn off.
Sorry, no. Not even close. Here is a controlled test showing what a collision at 50 MPH looks like. Granted, these vehicles are not anything similar to a F150, but then the weight of the F150 would tend to make the damage it receives in such a collision worse. I've got many years of handling crashes and while I don't pretend to be able to lock the speed down to within even 10 MPH just by looking at those pictures, I can tell you it's not even close to a 55 MPH crash.

50 MPH crash test, controlled environment:
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Old 03-23-2017, 03:59 PM
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If the rear doors are buckled, they wont repair it, too much cab damage at that point. There was another guy who had less damage and his was totaled. They no longer repair frames, or replace them, too much work involved, no different than a frame off restoration.
Old 03-23-2017, 04:08 PM
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Originally Posted by VTX1800N1
I'm a LEO and investigate crashes all the time. A 55 MPH crash causes MUCH more damage than that. Just my 17 yrs of experience talking, FWIW. I've no doubt he's just relaying what the deputy on scene told him, but unless that deputy is a traffic crash reconstructionist and took numerous measurements of the impact point, debris field, and final resting points of both vehicles, it's just his guess. Looking at the damage on the rear of the truck, that's no where near a 55MPH crash. That's more like 20 MPH, likely much less. It doesn't take much speed to cause extensive damage. Modem vehicles are designed to crush during impact, absorbing the crash energy and thereby protecting the occupants.
20 mph will wrinkle/twist the frame all the way under the cab?
Old 03-23-2017, 04:10 PM
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Originally Posted by VTX1800N1
Sorry, no. Not even close. Here is a controlled test showing what a collision at 50 MPH looks like. Granted, these vehicles are not anything similar to a F150, but then the weight of the F150 would tend to make the damage it receives in such a collision worse. I've got many years of handling crashes and while I don't pretend to be able to lock the speed down to within even 10 MPH just by looking at those pictures, I can tell you it's not even close to a 55 MPH crash.

50 MPH crash test, controlled environment: https://www.youtube.com/watch?v=L-BfFq7Qa7w
SUV, sits lower to the ground vs pickup that sits higher and had the vehicle that hit it go underneath, apples to oranges. Look at his bumper, it is clearly bent under by a lighter vehicle. Stop trying to compare without seeing what the other vehicle looks like. Until then it is nothing more than just ASSuming.

I can see that part of the vehicles hood hit the tailgate, but everything else was absorbed by the bumper, hitch and frame, the strongest part of the truck, and all that energy was transferred forward through the frame. I would not be surprised if the frame is rippled all the way forward. We also don't know how far forward the truck was pushed by the impact, no debris trail, nothing that we can see that the onsite officer did to determine has fast the other vehicle was traveling.


How fast do you think the guy who did this was going?



or this one?

Old 03-23-2017, 05:19 PM
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Here is another crash reported to be a truck rear-ended by a car @ 55 MPH. This is consistent with my 17 years experience seeing these type of crashes. This gives you an idea of the forces involved: https://www.f150forum.com/f118/2015-...0/#post4439717
Old 03-23-2017, 05:28 PM
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Originally Posted by Frank Langella
20 mph will wrinkle/twist the frame all the way under the cab?
Yes. See if you can find one of those crash demonstrators that police set up from time to time, usually at high schools around prom time. It's a sled on a sloped track and simulates a ~5 MPH impact. Every single person I've seen that's experienced the simulator has been shocked at the forces involved in just a 5 MPH crash. Inertia is a powerful force. 30 MPH crashes used to be fatalities. Certainly, not all the time, but at just 30 MPH there is enough energy to cause major internal injuries depending on the design of the crash safety systems and what the car hits. Take a look at this video. Look at how violent just 5 MPH is when you observe the reaction of the human body to that sudden stop. Now imagine the violence of a 55 MPH crash! People travel at these speeds every day and simply do not realize the kinetic energy in their vehicle and in their own body at such speeds. Watch:
Old 03-23-2017, 05:28 PM
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Apples to oranges. Another post with no photos of the vehicle that impacted it. The second crash in that thread was 60-65 MPH on impact. The car that hit the Op weighs about 3600#, and is FWD, with a large crumple zone to absorb the impact.

Still no proof that the impact wasn't at 55 MPH. Look again at the pics of the damage, the wheel well is wrinkled too. Point of impact was the bumper, the link you posted, point of impact was the tailgate. Makes a huge difference.
Old 03-23-2017, 05:32 PM
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Originally Posted by VTX1800N1
Yes. See if you can find one of those crash demonstrators that police set up from time to time, usually at high schools around prom time. It's a sled on a sloped track and simulates a ~5 MPH impact. Every single person I've seen that's experienced the simulator has been shocked at the forces involved in just a 5 MPH crash. Inertia is a powerful force. 30 MPH crashes used to be fatalities. Certainly, not all the time, but at just 30 MPH there is enough energy to cause major internal injuries depending on the design of the crash safety systems and what the car hits. Take a look at this video. Look at how violent just 5 MPH is when you observe the reaction of the human body to that sudden stop. Now imagine the violence of a 55 MPH crash! People travel at these speeds every day and simply do not realize the kinetic energy in their vehicle and in their own body at such speeds. Watch: https://www.youtube.com/watch?v=2a93m_jMJ18

Wow, a simulator with no cushioning, yeah, you will feel it. Now add in crumple zones designed to absorb the impact, and airbags. I was just in a high speed crash, hit at 47 MPH. A few years back was in one that impacted at 45 MPH. Guess what, it felt not much different than hitting something at 5 MPH. The seltbelt and airbag do more damage now.
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Old 03-23-2017, 06:02 PM
  #30  
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Originally Posted by VTX1800N1
Sorry, no. Not even close. Here is a controlled test showing what a collision at 50 MPH looks like. Granted, these vehicles are not anything similar to a F150, but then the weight of the F150 would tend to make the damage it receives in such a collision worse. I've got many years of handling crashes and while I don't pretend to be able to lock the speed down to within even 10 MPH just by looking at those pictures, I can tell you it's not even close to a 55 MPH crash.

50 MPH crash test, controlled environment: https://www.youtube.com/watch?v=L-BfFq7Qa7w
Yeah, your video of a Rav4 being hit by a test frame with 75% of its weight in the bumper the size of a dump truck with no crumple zone is exactly like OP getting hit square in the hardest part of his truck by a car less than half its size that most likely fully caved in the front crumple zone.

lol

you win the internet friend

Look I've witnessed more than my fair share of wrecks and have even been in a few, and based on where the vehicles contact each other and how the energy transfers can lead to the damage being very deceiving. I had an Olds 98 get hit out in front of my house by a friend doing about 20mph and it completely blew up the 4' deep trunk of the land boat, it looked like someone had hit it with a tractor trailer doing 50. I was once cut off in heavy interstate traffic by an idiot watching a movie on his laptop, he hit the car in front of him and totaled both of them, and I hit him and did $2500 worth of front end damage to my 05' F150 but you could barely tell that he had been hit from behind.


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