I think all human beings are visual learners (unless you are vision impared of course) as it’s the way we were designed/evolved (but let’s not get into that discussion right now). But we are capable of so much more than that.
I agree that a picture is much more efficient in the process of the explanation of some ideas, but I think that in the process of that we miss the opportunity to actually think as deeply about the idea as when you try to describe it.
Maybe I’m a bit twisted, but I actually enjoy trying to decipher the ideas hinted at on here by those with a lifetime of experience on the subject. Supposedly the written word is one of the things not hard wired into the human brain, even though verbal language is. Arguably mankind’s greatest achievement, despite the amount of shit that has been written since it’s invention. But that’s more of an application issue than anything else.
And of course you (and all of us) are well within our rights to ignore, speak or double speak as we see fit. Although ideally I’d pefer the double speak to be left to those who have pearls to share. I don’t mind if the answers don’t come easy. That’s half the fun.
I own a 9’ Brewer Gun and have seen Brewer describe the bottom contours of a standard Brewer Gun. And I don"t remember Brewer using the term “spiral” At All.
Thank God for Bob Cooper, Dennis Ryder and Tom Hale. Because they took Mctavish’s rather crude and ineffective design, refined it, redesigned it ETC. and made it into something that is the basis for everything we shape today, Lowel
Ive never heard the original vee-bottom described as a spiral vee ?..not in Australia , anyway…Ive always regarded a spiral vee to have the vee apex , in front of the fin , and the rail line accelerating gradually above the stringer line @centre , creating a spiral in the bottom contour , from the apex of the vee , and out through the tail ?..early ones were convex , not concave…they were often used in conjuction with multi-flyer tails , and could pull amazingly short arcs…and they were , in fact , a true spiral… I think “spiral vee” is a term commonly misused .
The 7’-11" sounds like a Foley board , or a product of the extreme length reductions…most things went over my head when these things took place …I was 13 , and wouldn’t have known if my arse was on fire…(lol)