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Author Topic: Oswald's shot-1 ricochet was at Z113 or Z105.  (Read 47058 times)

Online Marjan Rynkiewicz

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #144 on: February 08, 2024, 04:45:09 AM »
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Here are the timings for Oswald's shot-1 & shot-2 & for a faux shot-3.
87 ft is the horizontal dist scaled by me, 106 ft is the hypotenuse dist allowing for vertical dist estimated by me.

Oswald Shot ----------- hit at ------ fired at  ------ sound hit JFK at – Carcano = 2170 ft per sec.
1 --- 87 ft = 106 ft ----- Z113 ------ Z112.1 ---------- Z113.9 ----- camera runs at 18.3 frames per sec.
2 --- 184 ft = 197 ft---- Z218 ------- Z216.3 --------- Z219.6
3 --- 255 ft = 266 ft ---- Z313 -------- Z310.8 --------- Z315.2 -------- Oswald did not have a shot-3.
The time tween shot-1 & shot-2 is 104.2 frames, which is 5.7 sec. Holland reckoned that shot-1 was at Z106, which is an extra 7 frames, or 0.4 sec, which makes it 6.1 sec.
The time tween shot-2 & faux shot-3 is 94.5 frames, which is 5.2 sec.
Adding to 10.9 sec.

Here are the timings for Hickey's auto burst, based on there being 6 shots.
Hickey Shot ------------- hit at ------ fired at  ------ sound hit JFK at -------
6 ---- 26 ft---------------- Z313 -------- Z312.8 ---------- Z313.2 --- hit JFK in head & cracked windshield.
5 ---- AR15 = 3250 ft per sec------------ Z310.0 ---------- hit chrome trim on windshield.
4 ---- sound = 1100 ft per sec ----------- Z307.25 -------- went over the windshield, hit Elm St.
3 ---- probly 400 rpm= 6.67 rps --------- Z304.5 ---------- went over the windshield, hit Elm St.
2 ------------------------------------------- Z301.8 ----------- went over the windshield, hit Elm St.
1 ------------------------------------------- Z299.0 ---- probly hit Main St pavement & then kerb near Tague.
My calculation of Oswald's angles based on above is .....
shot-1 at Z113 is -34.8 deg. If at Holland's Z106 it is still -34.6 deg koz either way it is at the signals.
shot-2 at Z218 is -21.0 deg.
shot-3 at Z312 is -16.6 deg.

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #144 on: February 08, 2024, 04:45:09 AM »


Online Marjan Rynkiewicz

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #145 on: October 12, 2024, 01:25:11 AM »
My calculation of Oswald's angles based on above is .....
shot-1 at Z113 is -34.8 deg. If at Holland's Z106 it is still -34.6 deg koz either way it is at the signals.
shot-2 at Z218 is -21.0 deg.
shot-3 at Z312 is -16.6 deg.
Nice work.

Online Marjan Rynkiewicz

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #146 on: January 06, 2025, 08:03:42 PM »
My calculation of Oswald's angles based on above is .....
shot-1 at Z113 is -34.8 deg. If at Holland's Z106 it is still -34.6 deg koz either way it is at the signals.
shot-2 at Z218 is -21.0 deg.
shot-3 at Z312 is -16.6 deg.
-34.8 deg is almost straight down i hear.

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #146 on: January 06, 2025, 08:03:42 PM »


Online Tom Mahon

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #147 on: January 06, 2025, 08:48:58 PM »
Oswald's shot-1 was at  Z113.
Below is a copy of my posting in my other thread that Oswald's shot-2 happened at Z218 based on Zapruder's startle reaction when he shook his camera at Z224, based on his startle reaction time of 3.7 frames. 

In the same way i can calculate that Oswald's shot-1 happened at Z129.8 based on Zapruder's mini-shake at Z134, based on the shake being due to the shock of the sound of the shot directly shaking the camera, based on the sound taking 4.2 frames to get from Oswald to Zapruder.  Actually, if the distance to JFK is say 88ft horizontally & 60ft vertically then that is 107ft, & if the slug moves at say 2200 fps or 120 ft per frame then the slug takes 0.9 frames.  Hence the slug was in the air at Z129.8 & hit the road at Z130.7.

Or if the mini-shake is due to Zapruder's startle reaction then i need to allow another  3.7 frames, which puts Oswald's shot-1 in the air at Z126.1 & it hits at Z127.0. 

When i say hits i mean it misses JFK & hits the signal arm & then it fragments.
(1) The remnant slug puts a non-round hole in the floor of the limo tween the jump seats (we have a photo) & hits the road.
(2) The copper jacket breaks into 2 pieces as is usual (it is made of 2 pieces joined together), giving us CE567 CE569 found in the car.
(3) Small lead fragments hit JFK in the back of his head (as seen on xrays). 
(4) Other larger lead fragments found in the limo might belong to Oswald's shot-1 or they might belong to Hickey's  AR15.

However i reckon that Oswald's shot-1 happened at Z113, not the above Z127 or Z131. 
This is based on the limo at Z133 being one car length past where it was when Oswald fired.  Before today i reckoned that Oswald's shot-1 was at Z123, based on the limo at Z133 being a half car length past, but today i had a closer look at photos etc & i saw that 1 full limo length past was the true situation.

More exactly, the difference is equal to the length of a painted white line on the roadway.  This is about 17ft.  I saw that the limo takes 19 frames to move the length of the stripe, ie from Z133 to Z152, & then the limo takes another 19 frames to reach the next painted stripe.  But if i assume that the limo was accelerating a little prior to Z133 i can round it off to say 20 frames.  Hence Oswald's shot-1 happened at Z113, meaning that it hit at Z113, but Oswald fired at Z112 (the slug being in the air for 0.9  frames).

The slugs hit at Z113 & then Z218 & then Z313 (an auto burst of 4 or 5 shots).

[PREVIOUSLY I SAID]…..Oswald's shot-2 was at  Z218.
Working backwards, Zapruder is startled at Z318 Z319 Z320, which is 5 frames after Hickey's 4 or 5 shots at Z313 Z314 Z315 Z316 Z317.  Zapruder is 84ft from Hickey, & the speed of sound is 343 m/s or 62ft per frame, so that takes 1.3 frames.  Deducting 1.3 from 5 gives a startle reaction time of 3.7 frames. 

Zapruder is startled at frames Z224 to Z229.  Deducting 3.7 from Z224 gives Z220.3.  Zapruder is 264 ft from Oswald, for which the  sound takes 4.2 frames.  Hence Oswald shot at Z216.1.  The slug moved at say 2200 fps which is 120 ft per frame, & Oswald is 197 ft from JFK, hence the slug takes  1.6 frames.  Adding 1.6 to Z216.1 gives Z217.7 as the time that JFK is hit, ie say Z218.

Z218 has always been my estimate based on Connally's testimony re Connally's turning movements.  He said he was turned/looking right, then turned to look over his left shoulder but only got halfway  there when the slug hit him.  That right to left turn can only have happened whilst Connally was hidden by the sign, & Z218 is dead center in that period.
Re Oswald's shot-1, this happened some time before Z133, Z133 being Zapruder's first frame of  that sequence.  We know where shot-1 happened, it happened at the signals, the shot ricocheting off the signal arm. But when is not known.  If it was a half limo length before Z133 then at 1 ft per frame that makes shot-1 at Z123. A full limo makes it Z113.
[END OF QUOTE].


LOL!

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Re: Oswald's shot-1 ricochet was at Z113 or Z105.
« Reply #147 on: January 06, 2025, 08:48:58 PM »