# Flight 93 Crash Physics - Fragmented Plane Buried in the Ground

#### vodking

##### New Member
Hello all, love the forum! I've signed up here because I absolutely hate 9/11 conspiracy theories.

I am currently arguing with a guy who is absolutely hung up on Flight 93's crash physics. As we know debris was buried in the crater, and also found above ground. This guy simply cannot get over the fact that debris was buried and fragmented. He thinks that either the plane should have fragmented when it hit the ground (but not buried), or I guess should have buried in whole parts?? I'm still not sure on that front, however he simply cannot see how a plane could fragment and still bury itself. If I understand his super-duper 9/11 truth logic, he thinks all the momentum would be gone when the plane hit the ground and parts could not have had any more momentum to carry them (especially aluminum parts) into the ground. Follow?

He also annoyingly keeps citing Newton's 3rd law, but has yet to fully explain how Newton's third law applies. Northwest Airlines Flight 710 has also been pointed out to him repeatedly but he is sort of dancing around that one.

I'm sure this has been explained before. Anyone have a link or explanation for how the plane fragmented and buried?

Thanks!

#### Mick West

Staff member
He thinks that either the plane should have fragmented when it hit the ground (but not buried), or I guess should have buried in whole parts?? I'm still not sure on that front, however he simply cannot see how a plane could fragment and still bury itself. If I understand his super-duper 9/11 truth logic, he thinks all the momentum would be gone when the plane hit the ground and parts could not have had any more momentum to carry them (especially aluminum parts) into the ground.

Fragmenting does not mean things immediately stop. Shoot a .50 round at water and it will fragment. That does not mean it stops on the surface of the water.. Here's an example.

##### Active Member
As I was reading the OP... Something occurred to me as a possible reason why so few giant sized fragments existed, or would exist.... See if this makes sense to anyone:

Assuming that flight 93 flew into the ground relatively straight (nose) down into the ground at a fairly high rate of speed. Wouldn't the fuselage buckled and compress down like a cigarette being pressed into an ash tray? When you do that, the tobacco inside gets pressed further into the body of the cigarette and the outer paper tends to split and rupture with the increased tobacco being pushed up inside. Wouldn't the air and materials inside the plane do the same? I would think that this would cause the plane skin to rupture and split as the nose and front of the plane was pressed into the ground. Because it happened so fast, it would probably act more like an explosion of air and materials and cause the fuselage to burst into smaller fragments; thus explaining the limited number of big plane parts found. The fact that the ground was very soft meant that it would have been happening at or just below ground level, reducing the amount of plane fragments that were expelled out onto the surrounding landscape.

Just a thought. Does that make sense to any of the more scientific minds here?

#### Keith Beachy

##### Senior Member
The impact speed and angle are some of the factors for the percent of parts buried or found above ground. The impact "crash landing", is usually low speed, low energy, with kinetic energy from 100 to 300 pounds of TNT. Flight 93's impact was about 1,400 pounds of TNT. I believe the impact angle was about 40 degree and 93 was partially upside down. The angle and speed are why an engine was buried, and the attitude of the aircraft play a role, as would the roll rate at impact. It was flight 93 that hit; what we see is what we get for the flight parameters of 93 in a high speed dive into the ground.

As for the aircraft being fragmented, it depends on the speed at impact, like car crashes, low speed less damage, high speed more damage. The impact of Flight 93 had 7 to 10 times the kinetic energy of a "normal" aircraft crash people might be use to seeing. This is why Flight 93 was destroyed beyond recognition.

Flight 93 at impact, from 93's FDR buried in the ground.
pitch -41.1 degrees (not near an approach to landing pitch of 2.5 to 3 degrees)
roll angle 142 degrees (rolling about 10 degrees a second)
airspeed 487.5 knots (lots of kinetic energy)

#### Oystein

##### Senior Member
The null hypothesis is that Flight 93, a Boeing 757, did crash at Shanksville, fragmented and ended up largely inside the crater. Because that is what photos, radar, FDR, witnesses, the coroner, the NTSB, United Airlines, their insurers, the victims' relatives, etc etc etc etc etc agree on.

If someone claims that "Newton's 3rd" somehow invalidates all that, it's their burden of proof: Have them actually show work and apply Newton's 3rd! List assumptions, state the formulas and terms they are gonna use, plug in specific numbers, compute, show results, and interprete them in context.

Newton's third states that for any two bodies A and B that interact, the forces mutually exerted follow the equation F(A) = −F(B).
In order to show that something is impossible because of Newton's 3rd, they would have to define the two interacting bodies and evaluate the forces they can exert on one another.
Has any Truther actually ever done that? -> Hell no.

Have the person you are debating link to a truther actually applying Newton's 3rd with testable specificity. You will find that they can't and won't. And that removes Newton's 3rd from consideration.

#### vodking

##### New Member
Fragmenting does not mean things immediately stop. Shoot a .50 round at water and it will fragment. That does not mean it stops on the surface of the water.. Here's an example.

Mick, first of all I wanted to say I really appreciate what you do and I'm honored you replied.

Although this video is a sensible refutation, I bet this guy would somehow spin it in his favor.

#### vodking

##### New Member
As I was reading the OP... Something occurred to me as a possible reason why so few giant sized fragments existed, or would exist.... See if this makes sense to anyone:

Assuming that flight 93 flew into the ground relatively straight (nose) down into the ground at a fairly high rate of speed. Wouldn't the fuselage buckled and compress down like a cigarette being pressed into an ash tray? When you do that, the tobacco inside gets pressed further into the body of the cigarette and the outer paper tends to split and rupture with the increased tobacco being pushed up inside. Wouldn't the air and materials inside the plane do the same? I would think that this would cause the plane skin to rupture and split as the nose and front of the plane was pressed into the ground. Because it happened so fast, it would probably act more like an explosion of air and materials and cause the fuselage to burst into smaller fragments; thus explaining the limited number of big plane parts found. The fact that the ground was very soft meant that it would have been happening at or just below ground level, reducing the amount of plane fragments that were expelled out onto the surrounding landscape.

Just a thought. Does that make sense to any of the more scientific minds here?

This does make a lot of sense.

#### vodking

##### New Member
Here is some of the latest from this stubborn truther (redundant, I know)

Last edited by a moderator:

#### vodking

##### New Member
Outstanding reply from a fellow debunker on this. Can't wait to see how he'll spin this one.

Last edited by a moderator:

#### Trailblazer

##### Moderator
Staff member
Well that first line is clearly incorrect, so everything that follows from that misconception is invalid.

Things don't magically lose their momentum just because they have been "severed". Ever seen a clay pigeon being shot? It fragments into pieces when struck by the shotgun pellets, but the individual pieces sill have their momentum. The fragments don't just instantly stop in mid air and drop to the ground!

#### Martin Irving

##### Banned
Banned
The main fuselage at the crater in Lockerbie also left very little evidence of aircraft components, they calculated what hit the ground by counting rivets, if you look at the main crater picture, there are no disernable aircraft pieces at ground zero, I cannot comment more on my involvement but it's perfectly reasonable to deduce what happened at one location happened at the other, unless of course you wish to deny both events, insulting many people including those who lost life.

Replies
48
Views
4K
Replies
6
Views
16K
Replies
28
Views
17K
Thread starter Related Articles Forum Replies Date
Debunked: Demolition “squib” is visible at top of WTC North Tower before Flight 11 crash 9/11 67
Debunked: Mysterious Explosion Before the Flight 11 Crash 9/11 48
EgyptAir flight MS804 Current Events 52
Air Algerie Flight AH5017 carrying 116 disappears from radar General Discussion 10
MH17: Video of flight activity before and after the crash Flight MH17 32
Asiana Flight 214 crash "faked". Conspiracy Theories 4
Flight Tracking Tools for Investigating and Debunking 0
Debunked: Explosions preparatory to demolition of the WTC North Tower are visible as Flight 175 crashes into the South Tower 9/11 7
Serpentine flight pattern over Los Angeles Skydentify - What is that Thing in the Sky? 18
USS Ford : leaked footage of UFO seen on flight deck [CGI] UFOs and Aliens 7
Antipodal Flight Flat Earth 18
Explained: Jet Chasing UFO: X-45A and F/A-18B Formation Flight Skydentify - What is that Thing in the Sky? 6
Ethiopian Airlines Flight 302 and 9/11's United Flight 93 9/11 6
Debunked: Air Map of the World 1945 is a flat Earth map Flat Earth 0
Flight data for Flights 11 and 175 9/11 4
Inexperienced Pilot Recreating 9/11 Flight 77's Descending Turn into the Pentagon 9/11 77
American Airlines Flight 77 Missing from Bureau of Transportation Departure Report 9/11 12
American Airlines Flight 77 Aircraft Accident Package lists no. of Passengers/Fatalies as "Unknown" Conspiracy Theories 3
Explaining the 9/11 Murray St Engine from Flight 175 (N612UA) that hit WTC2 9/11 14
Halifax, NS: Regularly Spaced Gaps in Contrails [Ethiopian Flight 501] Skydentify - What is that Thing in the Sky? 47
'Strange' Flight Path on FR24 Skydentify - What is that Thing in the Sky? 10
A Plane Flying Across the Face of the Sun, with Contrails [Virgin Flight 353] Skydentify - What is that Thing in the Sky? 7
Contrails filmed from commercial flight over the Irish Sea - 6th May 2017 Skydentify - What is that Thing in the Sky? 2
UK Flight Reporting 115,000 feet Skydentify - What is that Thing in the Sky? 5
Flight Tracking Over Oceans and Emergency Landings Flat Earth 27
Jet Airways intercept video "UFO" (airliner, flight LH998 or LH66?) Skydentify - What is that Thing in the Sky? 14
Identified: linear clouds seen from Virgin Australia flight ['morning glory'] Skydentify - What is that Thing in the Sky? 7
Flight Radar 24 glitch? Skydentify - What is that Thing in the Sky? 4
Explained: Chilean Navy "UFO" video - Aerodynamic Contrails, Flight IB6830 Skydentify - What is that Thing in the Sky? 186
A Flight over the Antarctic Sea Ice From Chile to Australia (QF28) Flat Earth 23
Relative Humidity at Flight Altitudes. Resources and Contrail prediction. Contrails and Chemtrails 11
I'd appreciate help IDing this very odd contrail flight Contrails and Chemtrails 12
I'm trying to ID the flight for this old photo of mine, Feb 19, 2014 5:25 pm Contrails and Chemtrails 5
I can't ID this flight of Oct 5th [Alaska 577] Skydentify - What is that Thing in the Sky? 6
Horizon Air Dash 8 making many circles from Seattle Skydentify - What is that Thing in the Sky? 3
Help to ID a plane? [N90 - FAA Flight Inspection Aircraft] Skydentify - What is that Thing in the Sky? 30
Unusual flight paths over SW England Skydentify - What is that Thing in the Sky? 12
New fuel dump "chemtrail" video [Munich, Thai Airways Flight 925] Contrails and Chemtrails 33
Flat Earth Theory Debunked by Short Flights (QF27 & QF28) From Australia to South America Flat Earth 276
Belfast Observer Skywatch claiming that airliners do not appear on Flight Radar 24 - 10th March 2015 Skydentify - What is that Thing in the Sky? 0
Omega loop contrail over Toronto: Veni Vidi Volavi?.. [Likely Bombardier Test Flight from Montreal] Skydentify - What is that Thing in the Sky? 27
Gary Cameron Clydebank, Scotland Video, 1st May 2015- Claim of aircraft not being on Flight Radar 24 Skydentify - What is that Thing in the Sky? 11
HAL47 and HAL9981 Two Hawaiian Flights Diverted to Oakland Skydentify - What is that Thing in the Sky? 2
Issue with Flight Radar 24? General Discussion 10
Plane with Yellow Tail over Redding, CA [Polar Air Cargo Flight] Skydentify - What is that Thing in the Sky? 119
Flight BOE1 Skydentify - What is that Thing in the Sky? 7
Hoax: Fuel Dump video on Facebook [Flight BA244 from Buenos Aires to London] Skydentify - What is that Thing in the Sky? 181
Solved: Portsmouth UK, "Alien Flight Path" UFO Contrail [Private Jet + Perspective] Skydentify - What is that Thing in the Sky? 11
N22387 Zig-Zig flight path near Sacramento [LIDAR data collection] Skydentify - What is that Thing in the Sky? 3
Related Articles