Yet the very next day, I heard the same Judicial Watch president live on a radio show sing a completely different tune about what could be seen, and that "more footage is to be released soon." The reason for his flip-flop opinion will probably never be known, unless his bank account (or JW) had a mysterious large deposit of untraceable origin that day. Supposedly more footage is to be released, but has not as of this writing. One can imagine the bickering going on inside the pentagon over this matter. After all, this isn't like doing post-production work on a motion picture that can take months. All an un-named employee must do is to take 5 minutes and make a copy of good RAW video footage and release it. No credits, no music, no editing. Period.

Unfortunately, with professional video editing workstations used in motion pictures today, the next footage that shows a plane will be perfect and undetectable as a fake. And it will appear near election time or about the time Iran is to be invaded, when voters at the polls will remember it and think the "war on terror" is justified. Even though no jumbo-jet was ever there. The biggest problem the government has? There never was a plane.

WHERE ARE THE OTHER CAMERA TAPES?

The current video footage recently released has a very slow frame rate of about frame per second, which could never be used to conclusively prove a plane was actually present that never touched the lawn or the giant wooden cable spools in the way. But what of the other 80+ video cameras from various businesses all around that side of the pentagon? Why are these videos still missing? We know that at the hotel across the road from the building, the staff were rewinding and watching the surveillance camera video tape over and over when the feds came in and took it. What was it they saw, and why haven't any of them come forward to testify what they saw? In the following analysis, we will look at whether or not a standard, real-time video camera such as those commonly used will actually be able to capture the image of an aircraft. For worse-case speed in the following analysis, we will assume that the fictional aircraft has an average airspeed just before impact of 500MPH.

A SHORT PRIMER ON NTSC VIDEO

This is by far the most common surveillance camera video standard still used in the United States and Canada. NTSC is an acronym for the National Television Systems Committee. Use of this standard [1] insures low cost recording on almost any standard American VCR. The NTSC video specification defines a fixed video field rate of 59.94 FIELDS (not completed images) per second. There are TWO randomly interlaced FIELDS of video in each video FRAME. Each field has 262.5 scan lines, for a total of 525 scan lines required to form the completed image. (In actual use, about 486 scan lines are usable, since many scan lines are reserved for sync, retrace and other network signals such as color control, data, closed captioning, timing, etc...) With LCD televisions, almost all of the 486 scan lines are visible. About 400 lines are visible with CRT-based televisions, as a result of intentional overscanning off the screen at the top and bottom. The missing scan lines are used to compensate for power line and television circuitry fluctuations which may cause a reduction in vertical picture size, producing a black bar(s) at the top and/or bottom of the screen.

On older televisions when the picture shrank vertically from a defective electronic component, one could see a fat black arrow in the middle of a thick black bar at the top of the screen. That was just the appearance of the video sync.embedded in the video scanning. However, it is not what the sync. signal actually looks like. (Normally these lines are never visible.)

The actual NTSC video frame rate is 59.97/2, giving us 29.98 completed frames of video/second. This is why when you look at something off to the side of a CRT-based television screen you can perceive a slight flicker. The peripheral vision of the retina in your eye has a higher frequency response than at the center of the retina. Therefore, you can perceive the video frame rate.

PROOF WHY A PLANE WILL BE SEEN ON VIDEO IF PRESENT

No one that I know of has attempted to analyze this issue purely from a video frame rate perspective. A video camera can be thought of as a crude stroboscopic still camera capturing 60 individual still fields (NOT frames) per second when played back on a recorder or computer, with a pause or still frame capability that can display the individual fields. We will be concentrating on the camera's horizontal viewing distance, since this is the expected path of the plane at ground level.

Standard NTSC video is still used in many low cost surveillance cameras. It does not create the jerky, slow motion video one sees from a web or computer network camera running at 1 to 5 frames/sec. using considerable compression. With NTSC video, no compression is involved. (The actual NTSC spec. predates all forms of computer video compression by many decades.)

With two interlaced fields per NTSC image frame, each complete frame requires 0.0333 seconds (33 milliseconds) for a complete video frame. For our point of reference, let's consider an outdoor camera that could easily cover approximately 500ft. or more of horizontal distance. This could easily be the situation with a camera at the gas station across the street from the pentagon. It will probably cover an even wider field, since any camera's field of view is an infinitely widening cone (although the focus of the camera's lens and resolution drop off with distance.)

With all that said, let's do some numbers to see if the plane will be captured by an ordinary NTSC video camera. Some readers may see this as the long way to calculate it, but this will clearly illustrate my point:

1. First, let's convert the plane's distance it travels into feet so it can be compared to the horizontal view of a video camera. A plane traveling at 500MPH (500MPH x 5,280ft (or 1 mile) travels 2,640,000 ft. in one hour.

2. There are 3600 seconds in one hour. 2,640,000ft. per hour/3600 seconds = 733.333. Therefore, our missing plane travels at 733.333ft. per second, which is slightly more than twice as fast as a Formula 1 race car. Although this is fast it won't be invisible.

3. As stated eariler, we will assume that a typical surveillance camera conservatively covers about 500ft on the horizontal axis (from left to right.) This will equate to 68% of the 733ft. our plane travels in one second. Of course, this would require an unobstructed field of view. Many outdoor cameras have the focus set to infinity (or near infinity) to capture everything in the camera's field of view. Therefore, the length of time that the camera will capture images of the plane will be considerable longer.

4. Let's return to our video calculations above. Every 33 THOUSANDTHS OF A SECOND we have a completed, interlaced video field which covers about 500ft. of horizontal space. If we take 68% (from step 3 above) of 29.98 complete frames/second, we are left with 20.386 usable frames/sec.

Conservatively, this means that some or all of an aircraft will be visible in AT LEAST 20 FRAMES (or 40 FIELDS) OF VIDEO.

And even though it will be blurred, an aircraft will be visible. We will NOT see any background buildings or trees in the distance wherever the body of the plane is in any video frame.

Consider a race car at the track covered by today's NTSC video cameras. Even when the car zips past a fixed track-side camera only a dozen or so feet away from the lens at more than 200MPH, one can still see something in the video image. If the same car was moving at 500MPH twice the distance away from the same camera, the effect would be about the same. The farther an object is from a camera, the slower it will appear to move. When you look up in the sky at a jet traveling at 550MPH just a few miles above you, it appears to move very slowly simply because of the distance. When watching planes land at a nearby airport, one may not imagine that the aircraft land at speeds around 100MPH.

From this analysis we have been able to prove that not just one frame, but that 20 frames or more will show any aircraft in the distance. And if the camera ran at a slower video rate, such as 15 full frames per second? Then we would see the image of the plane in at least 10.2 frames.

Now all we need is just ONE of the missing 80+ tapes that shows an aircraft.

That is - if any of these recordings still exist.

Ted Twietmeyer

www.data4science.net

VIDEO STANDARD REFERENCE: http://en.wikipedia.org/wiki/NTSC