10 inch Rodman Gun Pattern 1861 on a Seacoast Barbette Carriage 1/32 scale resin model kit
made in USA by Old Steam Navy
# OSN-1
$59.95
temporarily out of stock
Other photo (click on thumbnail for larger
view): 
#OSN-1 In order to bring you the
very best kits, Old Steam Navy used a wonderful new technology which is known as
stereolithography. All of these kits used 3-D CAD and stereolithography to
produce the master copies. This technology is very expensive, but it is
superior. Stereolithography uses a laser beam and a special laser sensitive
material. Directed by the computer aid design software the laser produces parts
to the exact tolerances found in the historical blueprints. The attention and
reproduction to historical detail as found in all of Old Steam's kits is without
precedence in the world
of modeling. Kits include the 4 pages of original blueprints as part of the
instructions. Old Steam's kit contains resin barrel, a new pewter seacoast
barbette carriage, 3 shells, 3 bolts; 6 iron spherical shot. There are over 35
parts in all!
History: Captain Thomas Rodman, responsible for increasing and improving
endurance of heavy ordinance, changed the current foundry methods for casting
large hollow cylinders. He revived a long abandoned hollow casting method
with a critical difference. Captain Rodman substituted a patented
“core-barrel” cooled inside by air or water. His idea was to freeze molten
metal from its bore outward, pushing impurities toward the exterior. He
understood that casting as an outward succession of thin concentric rings that
in turn while cooling would solidify and then shrink. The shrinkage would
compress those already cooler within, producing compression stresses to oppose
firing pressures. Today, this technique is known as pre stressing. The 10-Inch
Rodman gun (Pattern 1861) weight was 15,050 pounds; had zero preponderance.
Confederate Columbiad's copied Rodman's construction.
Back to Old Steam Navy Scale Model Kits Page