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| USS Pennsylvania (1837) Scale: 1:64 Cross Section at the main mast | ||
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| Mike 41 |
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  Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | History USS Pennsylvania was a four-decked 140-gun ship of the line of the United States Navy, named for the state of Pennsylvania. She was the largest sailing warship ever built for the Navy, and the equivalent of a first-rate of the British Royal Navy, but her only cruise was a single trip from Delaware Bay to Chesapeake Bay. She was just as large as the Spanish four-decked ship of the line Santisima Trinidad, built over 60 years earlier. Pennsylvania was one of the "nine ships to rate not less than 74 guns each" authorized by the US Congress on 29 April 1816. She was designed and built by Samuel Humphreys in the Philadelphia Navy Yard. Her keel was laid in September 1821, but tight budgets slowed her construction, preventing her being launched until 18 July 1837. She had three complete gun decks and a flush spar-deck and her hull was pierced for 136 guns. Exploding shell guns were replacing solid shot by the time Pennsylvania was fitting out. A Bureau of Ordnance Gun Register for 1846 records her armament as follows: Spar deck: two 9 pounder (4 kg) cannons and one small brass swivel. Main deck: four 8 inch (203 mm) chambered cannons received from Norfolk in 1842, and thirty-two 32 pounder (15 kg) cannons. Middle deck: four 8 inch chambered cannons received from Norfolk in 1842, and thirty 32 pounder cannons. Lower deck: four 8 inch chambered cannons and 28 × 32 pounder cannons. Pennsylvania shifted from her launching site to off Chester, Pennsylvania, on 29 November 1837 and was partially manned there the following day. Only 34 of her guns were noted as having been mounted on 3 December 1837. She stood downriver for New Castle, Delaware, 9 December, to receive gun carriages and other equippage before proceeding to the Norfolk Navy Yard for coppering her hull. She departed Newcastle on 20 December 1837 and discharged the Delaware pilot on the 25th. That afternoon she sailed for the Virginia Capes. She came off the Norfolk dry dock on 2 January 1838. That day her crew transferred to Columbia. Pennsylvania remained in ordinary until 1842 when she became a receiving ship for the Norfolk Navy Yard. She remained in the yard until 20 April 1861 when she was burned to the waterline to prevent her falling into Confederate hands. Source Wikipedia I revised my gantry to accommodate the new model made it wider and taller and added a level.     | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | The keel and first frame are finished. I am using Harold Hahn’s method to make the frames. As you can see I will have plenty of room to work on the model with the enlarged gantry.   | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | These are a few photos showing how I made the blanks for the frames.     | ||
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| Patrick (Paddy) |
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  Registered Member #4100 Joined: Thu Jan 10 2013, 03:49pmPosts: 207 | Hi Mike, Great to see you off and running on the new project. Thanks for posting the new mods to your gantry system. Your gantry design has been a great help in my X-section project. Regards | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | Hi Paddy, Thanks, I got a little bored after I finished the Pinta and thought I would do another cross section. I am glad you are having good luck with the gantry. Mike | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | The frames have all been cut out and I did a little more work on the keel. The next few photos show the frames dry fitted in the jig.        | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | I really liked the way Gene used boxes for the gunports on his HMS Ontario and I am going to do the Pennsylvania gunports the same way. This is a few photos of the 30 gunports for the section.    | ||
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| Gene Bodnar |
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 Registered Member #126 Joined: Tue Jul 21 2009, 11:20amPosts: 1778 | Mike, You have a great start on another fine project. Question on your gantry -- do you glue one frame at a time and let it dry completely before gluing another frame, or can you glue multiple frames in a sitting? I still can't understand how you keep the frames upright and perfectly level without a standard notched jig to hold the frames in place while they are drying. On top of that, there is nothing to guarantee that the keel remains perfectly upright during the framing process, not even any stops on either side of the keel. This is the main problem that I experienced with my gantry. Gene | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | Hi Gene, Thanks this project is going to be a real challenge with the way the gunports are laid out. I will start with the keel it has two 3/32” holes drilled in the bottom with pins made from 3/32” brass tubing and project into the base board ½” the fit is very tight and holds the keel firmly in place. The end frames are in one piece and can be leveled and glued in place that is the easy part. The next frame to be installed is in three pieces I marked the elevations on the first frame installed and glued four spacers to the first frame then leveled and glued the bottom of the second frame in place photos 3185, 3186 and 3187. The third frame is also divided into three sections; I glued it to the second frame with a spacer then leveled and glued the first two gunport frames in place photos 3188 3189 3190. Next I added the middle section of frame 2 to the top of the gunport frame and glued it to the spacers on the first frame photos 3191 3192 3193 3194 3195 3196. I have continued this process for four frames and the look ok so far I know it is not perfect but I don’t seem to be getting much deviation from the plans. I used spreader bars on the top of the frames to keep them on center. Photos 3199, 3200 and 3201 show the frames after sanding. I usually glue a frame or parts of a frame in place with the spacers attached then work on the next piece for 15 of 20 minutes and add it to the model I don’t wait for the glue to be fully dry before moving to the next task. You might want to give the gantry another chance using pins in the keel makes a big difference and can be used to mount the model to a display stand. Mike       | ||
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| Mike 41 |
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| Registered Member #702 Joined: Fri Feb 05 2010, 10:37pmPosts: 1249 | Gene, This is the rest of the photos. Mike    | ||
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