625 ton Venetian Carrack circa 1450, in 1/700 scale
Posted: 2009-10-20 09:52am
This is my first attempt at scratchbuilding; carracks are a ship type perhaps nearer and dearer to my heart then even my beloved pre-dreadnoughts.
In the Conway's History Of The Ship volume "Cogs, Caravels, and Galleons", length and beam, among other dimensional tidbits, are given for a carrack listed in the Timbotta Manuscript, 140 feet by 38.6 feet.
This gives a length to beam ratio of roughly 3.6:1, a tad on the narrow side from what I've read about carracks, but it's exactly the ratio that Bjorn Landstrom gives in his book "The Ship" for a ship of 125 feet in the same manuscript.
The stempost is mentioned as being 51 feet above the keel, and 12 feet taller then the sternpost...I've been a little dismayed by the appearance of my work so far, the amount of freeboard seems extraordinary, but the height of the stem above the waterline scales out to 34 feet; guesstimation makes me think that 16 feet of draught is in the "acceptable" range...
Here's the Timbotta Manuscript illustration I'm using as my guide:
The amount of curvature in the sheer strake seems excessive to me, too excessive; I'll be playing around with that.
Masting and rigging will be based on WA's "Kraeck" woodcut of circa 1468, with some free interpretation as needed/desired.
I began with seven layers of .020" Evergreen stock laminated together, and roughed some lower hull contours into it forming a raft.
Doubting the dimensions I mentioned above, went with a straightforward 3:1 length to beam ratio.
It didn't look "right", yet I persevered and began adding and shaping by eye some templated onto the raft.
It was looking even less satisfying.
I pared about .080" of beam off of my beginning, creating a very slab sided and awkward looking thing, with ratios more fitting for an 18th century frigate, so I re-introduced some beam in the form of slabs of .020" stock slapped to the sides, remembered that I didn't take into account the amount of overhang the stempost has in the overall length, so I removed the appropriate amount of stern, and went to work with the sandpaper to achieve this hull shape, up to the upper deck:
A little forward motion with the fitting of the of the stern counter piece (correct term?) with the tiller opening:
You can see where I've marked the locations for false ribs that will be visible; I'm only going a semi plank-on-frame route; it uses less plastic, mail order is my only source for Evergreen stock, and I'm impatient!
In the Conway's History Of The Ship volume "Cogs, Caravels, and Galleons", length and beam, among other dimensional tidbits, are given for a carrack listed in the Timbotta Manuscript, 140 feet by 38.6 feet.
This gives a length to beam ratio of roughly 3.6:1, a tad on the narrow side from what I've read about carracks, but it's exactly the ratio that Bjorn Landstrom gives in his book "The Ship" for a ship of 125 feet in the same manuscript.
The stempost is mentioned as being 51 feet above the keel, and 12 feet taller then the sternpost...I've been a little dismayed by the appearance of my work so far, the amount of freeboard seems extraordinary, but the height of the stem above the waterline scales out to 34 feet; guesstimation makes me think that 16 feet of draught is in the "acceptable" range...
Here's the Timbotta Manuscript illustration I'm using as my guide:
The amount of curvature in the sheer strake seems excessive to me, too excessive; I'll be playing around with that.
Masting and rigging will be based on WA's "Kraeck" woodcut of circa 1468, with some free interpretation as needed/desired.
I began with seven layers of .020" Evergreen stock laminated together, and roughed some lower hull contours into it forming a raft.
Doubting the dimensions I mentioned above, went with a straightforward 3:1 length to beam ratio.
It didn't look "right", yet I persevered and began adding and shaping by eye some templated onto the raft.
It was looking even less satisfying.
I pared about .080" of beam off of my beginning, creating a very slab sided and awkward looking thing, with ratios more fitting for an 18th century frigate, so I re-introduced some beam in the form of slabs of .020" stock slapped to the sides, remembered that I didn't take into account the amount of overhang the stempost has in the overall length, so I removed the appropriate amount of stern, and went to work with the sandpaper to achieve this hull shape, up to the upper deck:
A little forward motion with the fitting of the of the stern counter piece (correct term?) with the tiller opening:
You can see where I've marked the locations for false ribs that will be visible; I'm only going a semi plank-on-frame route; it uses less plastic, mail order is my only source for Evergreen stock, and I'm impatient!