10-02-2015, 04:56 AM
Hi David
My head is reeling from all of the numbers, and the obvious contradictions in a lot of the data. Chris Davidson is helping me design a model over at the Ed Forum, and supplying me with most of the numbers.
So far, this is what I have for a head shot at z313.
Trajectory, from the WCR - 265 feet at a downward angle of 18°
Vertical height from street to rifle on 6th floor - 61.2 feet
Drop from TSBD to z313 (3.13° downhill slope) - 11.76 feet
I created a right angle triangle with a hypotenuse of 265 feet and a vertical rise of 61.2 + 11.76 = 72.96 feet and, using C² - A² = B², found the base of the triangle to be 255 feet. The only mistake I may have made is not adding the height of the curb, in 1963, to the vertical side of the triangle. I think Chris mentioned something about this, and I am awaiting a reply from him.
Do all of the numbers above seem okay to you? I am trying to lay out a triangle based model that will have an additional line running uphill the the vertical side of the triangle at 3.13° that will represent Elm St. By placing the limo and follow up car on this line, it should be possible to determine, at various separating distances, if a six foot man riding a foot above the asphalt on the running board of a '56 Cadillac will block the view of JFK or not.
My head is reeling from all of the numbers, and the obvious contradictions in a lot of the data. Chris Davidson is helping me design a model over at the Ed Forum, and supplying me with most of the numbers.
So far, this is what I have for a head shot at z313.
Trajectory, from the WCR - 265 feet at a downward angle of 18°
Vertical height from street to rifle on 6th floor - 61.2 feet
Drop from TSBD to z313 (3.13° downhill slope) - 11.76 feet
I created a right angle triangle with a hypotenuse of 265 feet and a vertical rise of 61.2 + 11.76 = 72.96 feet and, using C² - A² = B², found the base of the triangle to be 255 feet. The only mistake I may have made is not adding the height of the curb, in 1963, to the vertical side of the triangle. I think Chris mentioned something about this, and I am awaiting a reply from him.
Do all of the numbers above seem okay to you? I am trying to lay out a triangle based model that will have an additional line running uphill the the vertical side of the triangle at 3.13° that will represent Elm St. By placing the limo and follow up car on this line, it should be possible to determine, at various separating distances, if a six foot man riding a foot above the asphalt on the running board of a '56 Cadillac will block the view of JFK or not.
Mr. HILL. The right rear portion of his head was missing. It was lying in the rear seat of the car. His brain was exposed. There was blood and bits of brain all over the entire rear portion of the car. Mrs. Kennedy was completely covered with blood. There was so much blood you could not tell if there had been any other wound or not, except for the one large gaping wound in the right rear portion of the head.
Warren Commission testimony of Secret Service Agent Clinton J. Hill, 1964
Warren Commission testimony of Secret Service Agent Clinton J. Hill, 1964