That's right - Sluggo posted about this in response to Hangdiver:

"Sluggo_Monster
Jun 12, 2008, 5:29 PM
Post #2503 of 56871 (52435 views)
    Re: [hangdiver] Skydivers, I need your HELP! [In reply to]

The forward throw would be about 1,200' @100mph in no wind. kellend's calculator gives a great simulation of the forward throw. An unstable body flailing around is a bit harder to calculate. Back in the day when I learned to jump it was arch thousand, two thousand etc. up to a 10 second delay. A 15 second delay was the first time I checked altitude with an altimeter. Counting past 10 seconds gives a much larger error for altitude. If Cooper was only relying on his count for his altitude he needed to open fairly soon to avoid loss of altitude awareness especially at night with a bag tied to him. Just some thoughts on what his plan was.
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Thanks hangdiver,

BTW: It is my understanding that the skydiving expert (a NWA Pilot and skydiver) on the LZ Zone team along with data from Boeing, set the “no pull” path as 2,600 feet along the aircraft’s track if Cooper free-fell [sic] all the way to the ground in the “least drag” (tucked) position.

Sluggo

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If you go by the FBI plot it's just too far to splash into Smith lake. even with the plane turning it's not going to fling him almost the same distance as the altitude of the plane....it's not even forward in the throw...

That aside, the Columbia drainage basin with its marshes offers a means for Cooper, his chute, and his money vanishing until 1980. But an alternate version of the FBI flight path and timeline are required. I think it's worthwhile to explore these options especially since they were never explored before on Dropzone. Just my 2-cents.
 

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If you go by the FBI plot it's just too far to splash into Smith lake. even with the plane turning it's not going to fling him almost the same distance as the altitude of the plane....it's not even forward in the throw...

That aside, the Columbia drainage basin with its marshes offers a means for Cooper, his chute, and his money vanishing until 1980. But an alternate version of the FBI flight path and timeline are required. I think it's worthwhile to explore these options especially since they were never explored before on Dropzone. Just my 2-cents.
 

Do you have a date by which the money must be on Tina Bar?

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Do you have a date by which the money must be on Tina Bar?

Are you thinking 1978...

That is one of the sixty four dollar questions. Tom thinks the money had been on T_Bar before 1978; weathered out from an earlier arrival date.

What I note is the 'stable looking' condition of the bills which includes uniform deterioration of the bills around all edges. Suggests little movement for some time, maybe years. There are holes from bacterial attack in the middle portions of the bills some of which pass through several layers of bills. The central parts of the bills, especially bills from the middle of the stack are in remarkably well preserved condition. All of that suggests a stable condition with little movement for some years. It is hard to conceive of the bills having moved very far in the found condition, or the stacks would have fallen apart and there would have been nothing left to find at all. These facts of condition suggest a protected condition which had been a fact of life for this money for some years. 

Several FBI agents speculated the money had arrived in ice, but ice and temp records for the area don't seem to support that happening. The absence of conditions to support ice is almost a disappointment because it's a novel solution and could account for the money stacks being protected and transported over a long distance.   

Whenever the money arrived it almost certainly had to be covered over from sight along with its arrival. Otherwise money would have been seen and found earlier. That could be siltation during a flood or covering from dredge deposits (1974).

At one point Tom speculated 1/8th inch edge deteriorate per year. I don't know how valid that is. I think Tom was trying to account for the money having been at Tina Bar since late 1971 or in 1972. It is the lack of metrics like this or any other measurable metrics that makes it difficult to nail down a time at which the money "had" to be on Tina Bar.