by DrPR » Tue Nov 29, 2016 1:09 am
Joe,
"LL" means long length. Longer than stock lengths.
"Bottom Plating" is that part of the shell plating that is below the water line. The immersed plating from bilge to bilge. "Bilge" is the rounded portion of a vessel's shell which connects the bottom with side.
I would guess the "bottom curve" is the curvature of the hull bottom plating from keel to knuckle, from frames 1 to 7. Aft of that the buttock lines set the curvature.
A "stringer" is a fore and aft girder running along the side of the ship. It makes up the framing of the ship along with the vertical frames. Hull plating is attached to this framing.
The "bottom stringer" rests on the top of the keel. The top of it is straight and probably supported the lowest deck.
A "wing" is the outboard part of a ship. Looks like the "wing stringer" was at the knuckle between the bottom and sides of the boat.
****
I came across an invaluable little book years ago at a used book store - "Ship Structure and Blueprint Reading" by H. L. Heed, printed by the Cornell Maritime Press, New York 1942, 258 pages.
The inner dust cover says "This book is written for the sole purpose of teaching the men who are building the ships to read the prints."
It has chapters describing the parts of ships and how they are drawn in blueprints, a list of abbreviations, and a glossary. It looks like it was the draftsman's bible for ship building in the 1940s. It is small enough (5 1/4" x 7 1/2") to be carried in a large coat pocket.
On many occasions it has helped me to decipher the hieroglyphics embedded in ships blueprints. I keep it on my work desk.
No, I won't consider selling it!
Phil
Joe,
"LL" means long length. Longer than stock lengths.
"Bottom Plating" is that part of the shell plating that is below the water line. The immersed plating from bilge to bilge. "Bilge" is the rounded portion of a vessel's shell which connects the bottom with side.
I would guess the "bottom curve" is the curvature of the hull bottom plating from keel to knuckle, from frames 1 to 7. Aft of that the buttock lines set the curvature.
A "stringer" is a fore and aft girder running along the side of the ship. It makes up the framing of the ship along with the vertical frames. Hull plating is attached to this framing.
The "bottom stringer" rests on the top of the keel. The top of it is straight and probably supported the lowest deck.
A "wing" is the outboard part of a ship. Looks like the "wing stringer" was at the knuckle between the bottom and sides of the boat.
****
I came across an invaluable little book years ago at a used book store - "Ship Structure and Blueprint Reading" by H. L. Heed, printed by the Cornell Maritime Press, New York 1942, 258 pages.
The inner dust cover says "This book is written for the sole purpose of teaching the men who are building the ships to read the prints."
It has chapters describing the parts of ships and how they are drawn in blueprints, a list of abbreviations, and a glossary. It looks like it was the draftsman's bible for ship building in the 1940s. It is small enough (5 1/4" x 7 1/2") to be carried in a large coat pocket.
On many occasions it has helped me to decipher the hieroglyphics embedded in ships blueprints. I keep it on my work desk.
No, I won't consider selling it!
Phil