bad crash on dl

[dean nelson]

Go hopp in the latest car NASCAR has and drive it 30 miles an hour into a tree without your five point harness on and tell me how wall those crush zones helped. I'm guessing it will be hard to speak as your prying the steering wheel out of your rib cage! all the safety features built in the vehicles are done with one thing and one thing only in mind.... you have to be buckled up for them to work otherwise you're just a piece of debris getting thrown around and you'll end up where you end up

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This isn't personal opinion this is literally basic laws of physics! Newtons 1st to be exact!

 

[Buckmaster81]

Go hopp in the latest car NASCAR has and drive it 30 miles an hour into a tree without your five point harness on and tell me how wall those crush zones helped. I'm guessing it will be hard to speak as your prying the steering wheel out of your rib cage! all the safety features built in the vehicles are done with one thing and one thing only in mind.... you have to be buckled up for them to work otherwise you're just a piece of debris getting thrown around and you'll end up where you end up

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This isn't personal opinion this is literally basic laws of physics! Newtons 1st to be exact!

Dean you are a tactless blow hard.

Quick question if you run into a tree with a rigid frame vehicle that will not buckle @ 30 mph will the driver be forced forward with more force than a person in a new style vehicle that is designed to dissipate energy upon impact?

 

[dean nelson]

If you are not buckled in the type of vehicle doesn't matter because you're not attached to it. watch this video and tell me if the crushed zone in the front of the car help the unbuckled kids in the back. Had that boat had some type of restraint system the amount of give the bow had would have undoubtedly help the passengers a ton but since I'm not aware of any fishing boats with a seat belt system the amount of give the bow gave didn't help them at all and may have hurt them with all the jagged metal!

https://m.youtube.com/watch?v=fQ-xOplVUyc

 

[Buckmaster81]

Dean a crush zone slows the rate of deceleration. Both instances would be bad, but slowing the rate of deceleration will lessen the severity of impact.

 

[fnznfwl]

Could someone please add "physicist" to Deans Nelsons resume' ??

 

[Jigaman]

has anybody heard how the other passengers are doing?

 

[Buckmaster81]

has anybody heard how the other passengers are doing?

Sounds like 2 are still in critical condition and 1 has been released.

Disclaimer: this is second hand information.....

 

[guywhofishes]

I took graduate level physics (which I have since totally forgot BTW) - so I am an authority on this matter. ;:;rofl

I think something you have failed to visualize Dean is that, because the boat folded back so significantly, the dash/seats/structure of the boat that the occupants got launched into were also still moving forward as the occupants were initially making contact with them. The victims made contact about the time the first foot or two of the front of the boat folded back.... but as they made contact with the boat its front end was continuing to fold - allowing the rest of the boat to continue to move forward (allowing the dash, back of the front seats, etc. to decelerate less severely during occupant impact).

Still horribly jarring of course - but much less so than if they were in a stiffer stronger material that didn't crumple.

In other words they didn't slam into the dash/seats/people in front of them that were going 0 mph - they slammed into things that were still moving FORWARD with them. That effectively caused them less impact damage - whether you want to accept it or not. How much is of course dependent on what they hit, their position, etc.... I just know I'd prefer to hit something going in the same direction as me, not sitting still.

Now would a fiberglass boat have "crumpled" any less? Maybe - maybe not - I bet it depends on the design/construction. But the boat spending time decelerating by "sacrificing itself" in the front is a good thing for occupants - seatbelts or no seatbelts.

 

[deleted member]

the moment the boat hits the tree, the occupants go airborne at a rate almost equal to the initial speed of the boat. once the people or objects in the boat begin to move separate from the boat, the crumpling of the boat matters very little. the only caveat being... like guy said... if they hit anything attached to the boat and that particular piece of the boat is still moving forward because of the crumpling, then their impact is with said boat piece/part is lessened ever so slightly. but, the crumpling has zero affect on their initial acceleration thru the air and/or their impact with the tree or land.

but, this is silly... i feel like an asshole even typing about this shit whilst 3 people suffer in the hospital and one family mourns their lost daughter. ridiculously sad.

 

[Buckmaster81]

the moment the boat hits the tree, the occupants go airborne at a rate almost equal to the initial speed of the boat. once the people or objects in the boat begin to move separate from the boat, the crumpling of the boat matters very little. the only caveat being... like guy said... if they hit anything attached to the boat and that particular piece of the boat is still moving forward because of the crumpling, then their impact is with said boat piece/part is lessened ever so slightly. but, the crumpling has zero affect on their initial acceleration thru the air and/or their impact with the tree or land.

but, this is silly... i feel like an asshole even typing about this shit whilst 3 people suffer in the hospital and one family mourns their lost daughter. ridiculously sad.

Agreed

 

[dean nelson]

Well first off this boat wouldn't have had a dash. The question is at what point did the boat decelerate enough to make them go air born and how much did it slow well they were in the air. The answer to that is we have no idea. But watch that crash which is five miles an hour less. By the time the kids hit the front the car is at zero. In this case we know for a fact that the tree didn't move so that boat would have come to a full stop in an extremely fast rate.

Either way it doesn't matter because a young girl is dead two more are in bad shape and a guy from grand forks life is all but destroyed for making a bad choice! Seatbelts in this case would have probably helped in this case but belts in boats would probably kill as many as they save so it is what it is.

 

[guywhofishes]

Using GPS discussions OK, physics discussions bad. Roger that.

 

[DirtyMike]

that is a full windshield boat. Same boat as my dads. You can see the steering wheel in the pictures.

 

[dean nelson]

Good call I see that now. Was thinking it was a tiller.

 

[shorthairsrus]

Question I have --- if it would of been a different boat (something built better than a lund)-- say a hewescraft --- would it bounced off to the side of the tree -- kinda of like when you hit a dock at low speeds?

 

[gonefshn]

Question I have --- if it would of been a different boat (something built better than a lund)-- say a hewescraft --- would it bounced off to the side of the tree -- kinda of like when you hit a dock at low speeds?

There's boats built better than Lunds?

 

[dean nelson]

With his speed and hitting the tree nearly dead on I don't think it would really make much of a difference what make of boat he was in.

 

[WormWiggler]

As pointed as the bow of a boat is, why didn't it glance off more? Was it somewhat airborne? I don't fish DL, but looks like a lot of trees, not a loner.

Quite the macabre discussion on NDA, but I believe there are lessons to be learned and pretty sure all involved with the discussion have the highest respect for the persons involved in this tragedy, both physically and otherwise.

 

[Pinecone]

stop fn arguing it was an accident, they happen, condolences to the family's

 

[Fishmission]

I lost a very good buddy to a boating accident.
Tim was my lifelong friend since grade school. A better person would be hard to find.
below is the freak accident he was involved in 2 years ago.

http://www.propellersafety.com/7436...-clippard-killed-kentucky-lake-boat-accident/

Talk about physics. The boat slowed just enough after lower unit strike to allow the lower unit to fly into boat and kill him instantly.
Article is a little off. Lower unit broke off the 250 evinrude motor. Estimated they were going 50 mph when this happened.
I think of this every time I fish... His friend driving the boat has a few scratches when he hit the dash. He said he wished it was him that died.
Be careful out there.