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Frequently Asked Questions >> Why does it matter which side of the gas station the plane flew on? Couldn’t the plane have flown on the north side of the gas station and still hit the light poles and building?

As made clear in the video presentation National Security Alert, it is impossible for a plane on the north side -- let alone one in a significant right-hand bank as described by all witnesses who were in the best locations to observe the plane's flight path as it approached from over the Navy Annex -- to hit the light poles, hit the generator trailer, and/or to cause the required low and level directional damage to the building.

I. THE DOWNED LIGHT POLES

The five downed light poles are along a straight path to the alleged impact spot. Only a plane flying in a straight trajectory on a south side flight path can hit all five light poles. There is virtually no room for error.  Even a minor deviation from this flight path would have caused the plane to miss one or more of the poles. A plane on the north side misses all five downed poles, yet would have to fly over other light poles and obstacles which were not struck or downed (see third and sixth image below; also explained in more detail later on this page).











II. DIRECTIONAL DAMAGE TO THE BUILDING

The damage to the Pentagon, starting with the damage to the facade and leading up to the curious, almost- perfectly round hole in the C ring, is directional, meaning that it delineates a very specific trajectory for the plane.

This was noted as early as September 15, 2001 by Pentagon Renovation Manager Lee Evey, who said in a DoD News Briefing:

...this is the damage pattern that we see to the columns inside the building, and you can almost trace the path of the aircraft. This is why we believe it came in at an angle. The key here is, the red dots are where the columns are missing or cut completely.

That statement was made while he was showing a slide show containing this image (which is still available here on the DoD's website):


The specific trajectory required is the same straight south side flight required for the plane to hit the light poles.





The white image depicting the damage to the building leading up to the C ring hole, which has been scaled down to size and overlaid on top of the Pentagon in the image above, is taken directly from page 53 of the ASCE Building Performance Report.  Here it is as it appears in that document:



The directional damage to the building is also established by the photographic evidence, beginning with the E-Ring "entrance" hole on the facade of the building and ending with  the C-Ring hole, which is labeled "Hole in wall" by the ASCE in the image above.





As you saw above, the south side flight path aligns with the damage path from the ASCE report image, and the fuselage lines up with the C-Ring hole.  This is not the case with even the closest-possible hypothetical north side flight path, and remember, this path had the plane much closer to the station than all but one witness reported, and does not account for the significant bank reported.  With these things taken into account the plane would have hit the building closer to perpendicular, causing a damage path that is even more blatantly inconsistent with the one documented by the ASCE and photographic evidence.





Three of the images below are also from the ASCE Building Performance Report, and they all depict a south side flight path.
 

 
           
 


(Image from ASCE report, p. 19)





(Image from ASCE report, p. 36)


(Image from ASCE report, p. 39)

III. THE GENERATOR TRAILER

Furthermore, the damage to the generator trailer outside of the building is also irreconcilable with the north side flight path described by the witnesses.

In the September 15, 2001 DoD News Briefing cited above, Pentagon Renovation Manager Lee Evey continued:
On its way in, the wing clipped. Our guess is an engine clipped a generator. We had an emergency temporary generator to provide life-safety emergency electrical power, should the power go off in the building. The wing actually clipped that generator, and portions of it broke off.
    





This allegation was also made by the ASCE.

On page 13 of their report they published this image, showing the plane approaching on a south side flight path and in line with the generator:



Then on page 18 they said:
The aircraft flew over the grassy area next to the Pentagon until its right wing struck a piece of construction equipment that was approximately 100 to 110 ft from the face of the building (0.10 second before impact) (figure 3.14)
Here is the image that they published on page 20 of their report as Figure 3.14 with the caption "Aircraft at impact with generator".



It's impossible for a plane approaching on the north side flight path described by the witnesses to have caused the damage to the generator trailer.



IV. THE REQUIRED LOW AND LEVEL IMPACT VERSUS STANDING POLES & OBSTACLES ON THE NORTH SIDE PATH

The damage to the building is at ground level, and the foundation is relatively undamaged.

The ground-level damage is acknowledged by the ASCE.  On p. 17, they published the following image, with the caption "Impact location before collapse".



On p. 28 they state:
With the possible exception of the immediate vicinity of the fuselage’s entry point at column line 14, essentially all interior impact damage was inflicted in the first story:  The aircraft seems for the most part to have slipped between the first-floor slab on grade and the second floor.

One does not need to consult the ASCE, however, to know that the damage is primarily to the first floor, since it is also documented by the photographic evidence (click a thumbnail to load larger image).


         

Here are some composite images created by stitching together various photos.  The creator of the second image has added a scaled CGI 757.  (Click an image to load larger version)





The ASCE does not list any significant damage to the foundation, and it appears relatively undamaged in all of the photographs, such as this one taken by Jocelyn Augustino on 9/21/01, just ten days after the event.



More photographs of the foundation can be found in this article.

The ground-level damage combined with the lack of foundation damage means that the plane -- if it had struck -- would have had to have done so extremely low and virtually level with the ground (i.e. not in a descent).

However, the photographic evidence shows all poles and obstacles on the north side path fully in tact.  This means that a plane approaching from north of the Citgo station would not only have missed the downed light poles, but would also have flown OVER numerous other light poles and other obstacles an instant before reaching the building.



 




 




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This further underscores the fact that the plane did not hit the building, and could only have continued on over the building after clearing all of those obstacles on the north side flight path.

Note: As seen in our video National Security Alert, eyewitness Robert Turcios, who was at the Citgo Station, said that he saw the plane "pick up" over the highway to clear these obstacles.



V. EXPERT ANALYSIS BY PILOTS

Click here to read "NORTH APPROACH IMPACT ANALYSIS" by Robert Balsamo, an FAA certified pilot and certified flight instructor with 4000+ hours of total flight time.

Right click here and choose "Save As" to download the PDF verison (0.91 MB)

This is a new tech paper, complete with calculations and animations, that formally and scientifically demonstrates that a plane on the north side of the gas station cannot cause the physical damage photographed and documented at the Pentagon, starting with the light poles.

The paper was reviewed and approved by Captain Jeff Latas and Commander Ralph Kolstad.  Before going to work for JetBlue, Latas spent over 20 years in the United States Air Force, and his exemplary military record includes nearly 5000 hours in fighter aircraft, the Distinguish Flying Cross for Heroism, four Air Medals, four Meritorious Service Medals, and nine Aerial Achievement Medals.  A detailed bio can be read here and is summarized on his LinkedIn page.  Commander Kolstad (picture), who has logged 23,000 of flight time, spent over 20 years in the US Navy flying fighters off of aircraft carriers, achieving TopGun twice   He spent 13 years flying Boeing 757/767, mostly as an international captain for American Airlines.  He has command time in tail number N644AA, the very plane dispatched as American 77.

Conclusion: "It is impossible for any fixed-wing aircraft to cause the directional physical damage to the light poles, generator trailer, and the Pentagon leading to the C-ring hole approaching from directly over the Navy Annex and north of the former Citgo gas station. The flight paths illustrated by the witnesses would require G forces beyond the physical limitations of any aircraft for it to transition to an approach that lines up with the physical damage. Additionally, a hypothetical least challenging scenario at low speed would require bank angles that are irreconcilable with the physical damage, as well as the witness statements, and require an instantaneously performed roll that is impossible for any fixed-wing aircraft.."