The chain reaction of the Internet is to be taken with a grain of salt. "Information" is taken from one site, repackaged, and reported in another. With all respect, most of what is available on any given thread should be held at arm's length. Self affirming opinion is rampant.
For me, photography is nice. Text not so much. I believe, and have an opinion here, relative to velocity, which I estimated from a video that was fortuitous.
The range of velocity opinions here runs from 30 knots to over 100. Unless and until some actual published and offical data is forthcoming, who really knows?
Argumentation is silly, til more is known.