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Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
That said, ballistically, a logical scenario for a missed (over the limo top) DalTex shot around extant z152 (imo) would probably transpire this way: Slant distance to grass of approx 439ft. Slant distance to JFK in limo at z152 approx 179ft. DalTex platform approx 4ft above sidewalk. Gun barrel slightly above the platform (angled at approx 1.11° .53°) is approx 4.5ft above the DalTex platform (Red X's) which is approx 8.5 above the DalTex street height. 179/439 = .4 x 8.5ft = 3.46ft 8.5ft - 3.46ft = 5.04ft x 12" = 60" Top of JFK's head = 52.78" Limo top = 57" Limo descends 1.7ft(extant z film-1.08ft per frame) in the time it takes a bullet fired at 2160ft per sec to reach its first 179ft mark. JFK hears gun shot and reacts with head turn (not as fast as in the extant zfilm) but a reaction, none the less. Shooter miscalculated slightly, the limo's declination and overshoots target. Edits in Bold Addition to graphic reflects new angle aimed at JFK's head. Shooter sitting or lying on the platform. -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Height? No. The back and throat wounds didn't completely traverse JFK's body. Location, I believe so. Official story- Compound angle problems. -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
David, Building up from the 2nd to 3rd floor @ 3.27ft above ground from elev 423.07(shot#1-SS/FBI Dec-1963 plat) According to Drommer , the DalTex 6th floor ledge was 10.5ft higher than the TSBD 6th floor ledge. Four floors from the 2nd to the 6th floor = 10.5ft/4 = (2.625ft per floor + 10ft per floor + 24.46 = 37.085ft) The same base distance (as the 2nd floor) is necessary so a match from the DalTex 3rd floor window ledge would look like this: -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Extending the Sprague Dal-Tex shooter location: The 4 red boxes consist of: 1. Photo depiction 2. LOS crossing JFK's path at approx z152 3. PositionA 4. Sprague's shooter -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
The cumulative affect resulting in a recreation reflecting the intersecting point approx 2.21" below the collartop: -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
In regards to the HSCA 9ft rise integration approx match, the overall rise/run looks like this (imo): 13.54”rise/36”run = 20.61° + 3.13° = 23.74° overall reduced by a rise of 2.21” = 20.60° In essence, a 2.21” rise/run reduction, eliminates the 3.13° Elm St slope in an equation where the location was 9ft above the 6th floor window sill connected to the chalk mark @ 3.27ft above the street, essentially creating the same matching angle of 20.6° -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
And, since they started 5.75" down from the collartop and eventually tried to move it back up 3.54"(5.75-3.54) = 2.21" this difference through a 7" torso equals 20.65°(17.52+3.13) and would have lessened the overall rise/run of 13.54"/36" to a rise/run of 11.33"/36" which = (17.47+3.13)= 20.60°. Both landing between the CE884 span of approx z217.5(shot #1 determination via SS/FBI- Dec1963 plat) and CE884 z222. -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
A bigger picture (imo) would look like this, where 13.54"(52.78 - 39.24) is the vertical span between the chalk mark and JFK's headtop and a 36" run includes 7" for Connally's torso: 490.9 - elev 423.07 = 67.83 - 3.27 = 64.56 13.54” rise 36”run = converted to ft = 1.1283ft. 3ft 3.20ft = Right Triangle Sides 1.1283 / 3.20 = .352.. x 183.08 = 64.552ft 64.56ft@20.65°(2.21"/7"- rise/run) = 183.06 slant -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Equals a simple equation of: 10.04" - 1.18(2.8-1.62) = 8.86" -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
You can obtain the 8.86” height difference using other sources previously made available. Sources include the building block height. In case you couldn’t figure that out(building block height), the building block spans from JFK’s shirt collartop(back of neck) to T3. Minus the height difference between this: http://educationforum.ipbhost.com/topic/22692-swan-song-math-rules/?do=findComment&comment=405207 and this: http://educationforum.ipbhost.com/topic/22692-swan-song-math-rules/?do=findComment&comment=390945 Would give you this: http://educationforum.ipbhost.com/topic/22692-swan-song-math-rules/?do=findComment&comment=390993 -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
In turn, this would closely match the same angle through JFK's torso(neck/throat) using the thinner 5.5" HSCA figure: And closely match, the rise/run created by a 2.21" (5.75-3.54) movement: -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
It would have been easier to acquire the 25° using WC documentation and my torso measurement(back of neck to throat) as part of the proper rise/run calculation: 29" - 7" = 22" -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Referring back the HSCA document, the next conversion would be the distance stated between JFK's throat wound and Connally's back wound = 60cm = 23.62" The height between the two is 22.5cm = 8.86" (rounded from 8.858) for syncing comparisons, will explain/show in a little while. This doesn't get them to their desired 25° mark, but the slant distance matches from a location 9ft higher (as stated in the HSCA document) than the sixth floor snipers nest: -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
The HSCA document lists 14cm (first length translation) as the run between JFK's SBT wounds. This = 5.51" My wife (female) who is slender at 5'10" tall has approx that same run. My run (male) is 7". If you run the same rise/run figures, but substitute 7" for 5.5", this is what you arrive at: Refer to the approx last paragraph in the HSCA document for the match. Remember, 5.75" down from the shirt collartop then back up 3.54" gives you a rise of 2.21". -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
The HSCA weaving begins with the answer to the question above: Snipers nest 6th floor window sill = elev 490.9 - 423.07(shot #1 determination via SS/FBI- Dec1963 plat) = elev 67.83 - 3.27(coat chalk mark up from pavement)= 64.56ft btw, 20.65° translates to 20°deg39' in keeping with CE884. -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Some HSCA intertwining too come: -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
The other sequence of building blocks previously provided would consist of: 5.75" + 2.665" + 1.625" = a total building block height of 10.04" Start from JFK's collar top, moving downward, and apply these blocks(note the connecting points) to end up at the desired location. Mr. SHANEYFELT. Yes; there was. After establishing this position, represented by frame 161, where the chalk mark was about to disappear under the tree, we established a point 10 inches below that as the actual point where President Kennedy would have had a chalk mark on his back or where the wound would have been if the car was 10 inches lower. And we rolled the car then sufficiently forward to reestablish the position that the chalk mark would be in at its last clear shot before going under the tree, based on this 10 inches, and this gave us frame 166 of the Zapruder film. I'll do my own translation for you: Our building block height range was directly related to the 10" chalk mark alteration. Ballistically, we were unable to connect the wounds between Connally and JFK (via the official snipers nest) without this alteration. Furthermore, a 10" vertical alteration translates to a 15.25ft horizontal transfer onto Elm St. Our official range of the SBT occurring between z210-225 (14.9ft) approx 1ft per 1frame, matches our 10" vertical alteration. Our initial re-enactments used a range consisting of (the limo front end to JFK's position in the limo) a distance of 15.11". We felt this distance synced well with the 10" vertical alteration. -
Mark, I don't want to hijack this thread, I'll just briefly point out in the upper right-hand corner, just before the camera jiggle(notice the right side film edge) the flash that occurs. This occurs after the extant z313 head shot seen on Z. I pointed this out in another topic long ago. Watch the slowing limo and Jackie's hand in concurrence with this.
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Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
It looks like a rise/run ratio of 1.664"/7"(16.5°) was used, instead of the 1.625" (16.2°- close enough) I obtained through self measurements. You can see by plugging this back into the SS/FBI-Dec5,1963 plat, they were looking at a different location for the SBT to work. It was obvious via the extant zfilm, this would not fly. Mr. SIMMONS. Yes; we did. We placed three targets, which were head and shoulder silhouettes, at distances of 175 feet, 240 feet, and 265 feet, and these distances are slant ranges from the window ledge of a tower which is about 30 feet high. We used three firers in an attempt to obtain hits on all three targets within as short a time interval as possible. -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
If you answered Position A, you are correct. You now know (at least some of) why the WC plotted their B.S. recreation (PositionA) with the SS car starting kiddie corner from where the limo actually turned. -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Guess what else aligns with that same Dal-Tex shooter location when you run an LOS on through to Z161/8? -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Would a person be out of view from Altgens within that corner nook? -
Swan-Song -- Math Rules
Chris Davidson replied to Chris Davidson's topic in JFK Assassination Debate
Directing your attention to the two people in the lower left part of the video within the brick framing. Did the protruding brick leave enough of a relief for a person with a weapon? https://drive.google.com/file/d/15I8aP3NhgkEe0hBaRgge8Jd86e6xgA0f/view?usp=sharing