No argument from me - you are right, of course. The Constitution represents our first foray into wood ships. Normally we work on wood planking for armored ships, where the planks are laid over steel.
I considered precise alignment of the ends, but I was hard pressed to get exact plank lengths and to know exactly where the butts were - short of visiting the ship itself and marking them out. Unfortunately, most books on the subject to do not provide this detail, and the occasional photo of the ship's deck in small pieces is insufficient to set a full pattern.
I will visit the Constitution some day, and take those meticulous notes for every plank and how it is laid.
Let me confess, too, to this "deliberate" error: the "jogging" (or "nibbing" as it is called on armored ships) on my pattern follows the traditional rule. There is an excellent reference to this is the fine book on the Cutty Sark (*See note), which also closely follows the pattern that I have personally inspected on the Iowa Class Battleships. But the Constitution seems to get it wrong on the actual ship, and the pattern seems to be "inverted" going into the curve, with the cuts going completely the wrong way...
Here is a link to a fantastic photo:
http://www.history.navy.mil/ussconstitution/Images/Photos/WebRes/Restoration/20100105-N-5403C010.JPG
I am providing the link because it is high-resolution, and if you click on it you get a great close-up look at the planking. Look closely at the planks between the two diagonal ropes at the left of the image, and note where they meet the bulwarks.
In all my studies, and personal visits to ships, the blunt end would be forward on the plank, and exactly half the width of the plank, and the angle cut would sweep aft. But notice the cut here - it is a sharp point forward, and the blunt cut forms a notch at the rear, with a crude cross-cut into the wood visible between the ropes and just below the snow. You can see another "backwards" cut in the lower left corner of the image, too.
Can somebody help me with this here? To me, it seems like the actual ship got it wrong. I chose, instead, to replicate a traditional jogging pattern - because I thought it looked better. Here is a "blunt ends forward" image from a ship model
http://i1021.photobucket.com/albums/af335/seagull47/Ships/Fair%20Rosamund/plank-bow.jpg
If you want to see many more examples, Google "Ship Deck Nibbing" and look at the images that it finds.
Again, it seems like the actual USS Constitution in Boston got it backwards. Was there some other nibbing technique that I am not aware of?
*Note: The "Cutty Sark" book that I mention is a two volume set, sometimes sold as a combined volume, by C. Nepean Longridge. If sold in two volumes, you want Volume 1 for info on decking, which bears the ridiculously impractical title
"The Cutty Sark, The Last Of The Famous Tea Clippers V1: An Account Of The Ship Itself, With Plans And Full Instructions For Building The Hull, Bulwarks And Deck Fittings Of A Scale Model."
Volume 2 is entitled:
"The Cutty Sark, The Last Of The Famous Tea Clippers V2: Describing The Masts, Spars And Rigging Of A Scale Model, And Including The Builder's Specification For The Construction Of The Original Ship"
They are available on Amazon for about $20-$30 each. I bought the two separate volumes, but they are offered in a single combined edition as well. And the meticulous detail of the titles is a good indication of the quality of the content of these books! They are an invaluable resource for any builder of model sailing ships, and well worth the investment.