1842年的墨西哥铁甲舰？

The Ironclads

The first ship of this dual threat, by name the "Guadeloupe", was being constructed from French Naval Plans in the British shipyard of Jonathan Laird in Birkenhead, England and was specifically designed to operate in the shallow waters of the Gulf.  She drew only 10 feet of water and was further designed to be fully dependent upon steam power for movement, and her weapons battery was as modern as her propulsion.  She was of 788 tons displacement, 183 feet in length, and had the means within her propulsion system to develop a full 180 HP.1 She had two 32 pdr. long guns and two 68 pdr swivel Paixhan's pivots--"the guns with the explosive shells as large as good-size pumpkins."2 Ultimately this was armament that would render all other weapons of the period obsolete. "Guadeloupe" was the first iron steam warship in the world to be launched and when she was launched, the largest iron vessel ever built.3 A further feature that was unusual for the period was her construction in the use of watertight compartmentation throughout.4 Although not accepted into the Royal Navy, the British Admiralty maintained a careful surveillance of this vessel and her performance throughout her seafaring career and added many of her particular features to later vessels built for seaborne warfare.

The second vessel of discussion was the "Montezuma."  She was a wooden hulled iron-clad and even larger than the "Guadeloupe."  She displaced 1164 tons, extended in length to 203 feet, and possessed a surprising 280 HP in her engines.  Her extensive armament consisted of two 68 pdr swivel and six 42 pdr long Paixhans guns.5 She was built in London in the shipyards of Greens and Wigrams.  She was a heavy-timbered wooden vessel constructed along what were then ultra-modern lines.6 With such heavy guns, and under able management, these two steamers alone were (on paper) far more than a match for the Texan Fleet which did not mount a gun heavier than several long 24 pdrs.The Ironclads

The first ship of this dual threat, by name the "Guadeloupe", was being constructed from French Naval Plans in the British shipyard of Jonathan Laird in Birkenhead, England and was specifically designed to operate in the shallow waters of the Gulf.  She drew only 10 feet of water and was further designed to be fully dependent upon steam power for movement, and her weapons battery was as modern as her propulsion.  She was of 788 tons displacement, 183 feet in length, and had the means within her propulsion system to develop a full 180 HP.1 She had two 32 pdr. long guns and two 68 pdr swivel Paixhan's pivots--"the guns with the explosive shells as large as good-size pumpkins."2 Ultimately this was armament that would render all other weapons of the period obsolete. "Guadeloupe" was the first iron steam warship in the world to be launched and when she was launched, the largest iron vessel ever built.3 A further feature that was unusual for the period was her construction in the use of watertight compartmentation throughout.4 Although not accepted into the Royal Navy, the British Admiralty maintained a careful surveillance of this vessel and her performance throughout her seafaring career and added many of her particular features to later vessels built for seaborne warfare.

The second vessel of discussion was the "Montezuma."  She was a wooden hulled iron-clad and even larger than the "Guadeloupe."  She displaced 1164 tons, extended in length to 203 feet, and possessed a surprising 280 HP in her engines.  Her extensive armament consisted of two 68 pdr swivel and six 42 pdr long Paixhans guns.5 She was built in London in the shipyards of Greens and Wigrams.  She was a heavy-timbered wooden vessel constructed along what were then ultra-modern lines.6 With such heavy guns, and under able management, these two steamers alone were (on paper) far more than a match for the Texan Fleet which did not mount a gun heavier than several long 24 pdrs.