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Chris Davidson

Swan-Song -- Math Rules

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The top of JFK's head to the top of his shirt collar was 52.78 - 5.75- 39.24 = 7.79 inches.

That's the backside info.

Thanks to whomever posted this document originally.

44660305970_7b76cc9af8_o.png

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On 11/26/2018 at 11:31 AM, Chris Davidson said:

My shirt collar top to head top = 8.5 inches (wife measured)

 

 

 

 

Now, the frontside.

To begin:

I'm the same height as JFK- 72.5 "

The difference between JFK and me (headtop to shirt collartop) is 7.79" - 8.5" = .71"

The top button on me is 25" above my rear end sitting down. (See bullet hole location in previous document)

Since JFK is .71" shorter from headtop to collartop than I am, I'll add that length to his torso.

The top button on JFK is 25" + .81" = 25.71" + (had to add .1" to make it all work out)

The throat shot is .875" below the button = 25.81 - .875" = 24.935" (See bullet hole location in previous document)

 

 

 

 

 

 

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My torso is 7" in depth from throat to back. (wife measured)

7" over a 16.6" seat depth = 42.1% coverage

.421 x 2.8" = 1.18"

The front of my torso is raised 1.18" higher than the backside because of the seat slope.

 

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The dress shirt I used for my original collar height measurement was 1.875".

It appears the collar height on JFK's shirts were 1.5" tall.

So, my torso height up to the collar top is 28.5" (28.875-.375").

JFK's torso(same span to collar top) was .7" longer than mine.

His length is 28.5" + .7" = 29.2"

His collar top to head top = 7.79"

29.2 + 7.79 = 36.99"

His head top - (torso + collar top) = 52.78 - 36.99" = 15.79" from the ground.

 

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18 hours ago, Chris Davidson said:

Now, the frontside.

To begin:

I'm the same height as JFK- 72.5 "

The difference between JFK and me (headtop to shirt collartop) is 7.79" - 8.5" = .71"

The top button on me is 25" above my rear end sitting down. (See bullet hole location in previous document)

Since JFK is .71" shorter from headtop to collartop than I am, I'll add that length to his torso.

The top button on JFK is 25" + .81" = 25.71" + (had to add .1" to make it all work out)

The throat shot is .875" below the button = 25.81 - .875" = 24.935" (See bullet hole location in previous document)

 

 

 

 

 

 

Throat shot = 24.935 + 1.18 + 15.79" = 41.905" above the ground.

Throat shot height 41.905" - back shot height 39.24" = 2.665" height difference.

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On 12/20/2018 at 12:22 PM, Chris Davidson said:

Add the 3.13degree slope from Elm St and Specter's new angle, created by moving the trajectory from the coat chalk mark to just below the collar top, is approx (20.87 = 20deg52min) supporting shot#1 at Elev 423.07 = approx extant Z217.

Now, the throat shot at approx Z217(which is physically higher than the back wound), becomes the exit for the SBT from the 6th floor snipers nest.

Since clever old Arlen possessed all the material/information, it wasn't hard for him to make it fit.

46397711801_275c5a4c46_o.png

 

A 2.665" height difference moving between a 7" thick torso = the inverse of Arlen Specter's SBT .

 

45576341695_f9afb285ff_b.jpg

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21 hours ago, Chris Davidson said:

The top of JFK's head to the top of his shirt collar was 52.78 - 5.75- 39.24 = 7.79 inches.

That's the backside info.

Thanks to whomever posted this document originally.

44660305970_7b76cc9af8_o.png

.875" below the collar button =

32617117118_d554afc500_o.png

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1 hour ago, Chris Davidson said:

Throat shot = 24.935 + 1.18 + 15.79" = 41.905" above the ground.

Throat shot height 41.905" - back shot height 39.24" = 2.665" height difference.

46438572842_9e4e187388_o.png

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The actual throat wound height off the ground  would have been 41.905" - 1.485 (2.665 - 1.18) = 40.42"

Frazier documented the windshield damage at 14.5" below the windshield top.

The limo roof was 57"

57" - 14.5" = 42.5"

Windshield damage was approx 42.5" - 40.42"= 2.08" above the throat wound = a slight downward trajectory from approx 315ft away.

Shooter on the TSBD 6th floor west end say hello to your friend in the carpark upon the south knoll.

32685838128_31f2a5339d_o.jpg

 

 

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https://www.youtube.com/watch?v=OmvAImRyb3g

The downward bullet deflection(after hitting the windshield) of this head-on(non-angled) shot is 4.8degrees.

4.8degrees = 1" drop per every 1ft traveled

The speed at which the video bullet traveled, after hitting the windshield, was reduced to approx 72.4% of it's pre-impact velocity.

Subsonic specs below:

Range is in Yards.

32687216368_44b72f5e57_o.png

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Posted (edited)

31727822337_42e89e3212_o.jpgMore precise specs for the weapon.  Matching muzzle speed performance

More precise specs for the weapon.  Matching muzzle speed performance

above at 105 (added on edit)133 yards.

Disregard the 105yd graph below.

https://www.militaryfactory.com/smallarms/detail.asp?smallarms_id=686

Just convert the time into frames, the frames into distance traveled, the limo elevation drop thereafter, and distance left for the deflection and it all points to the Warren Specter inverse SBT.

https://farm8.staticflickr.com/7850/31727822337_42e89e3212_o.jpg

 

 

Edited by Chris Davidson

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This may help show the space available for bullet trajectory to enter the back and avoid striking bone, then passing thru the strap muscles/neck muscles  near the trachea/or nicking the trachea  to exit the body just at a point above the Suprasternal notch.

3d-male-muscular-system-3.jpg.bbe9cbe6c87626efc7a70e039dc940a0.jpg

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