7/30/2011

CONSTELLATION
A Radio-Controlled 1:36 Scale Model

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click pictures for a larger version
October 2009: Getting Wet

On a day we took Lydia my 16 foot sailboat out, I tossed the hull in the truck and after retrieving the sailboat at the end of the day, took the hull out and let it float.

Genius that I am, I forgot the rods that hold the ballast to the hull, so the best I could manage was pushing the hull down to the waterline by hand.

Take Two:

Three days later I tried again - remembering the rods this time, and even stuck the lower masts in her.

The "ballast torpedo" is a 2" i.d. PVC pipe, 48" long, capped at each end and filled with lead bird shot. There are two section of 5/16" i.d. pvc set through the pipe where a stainless steel cap bolt and washer threads into a stainless connector. A stainless 5/16-18 threaded rod slides down a tube in the hull and into the connector holding the "torpedo" to the keel. The ballast torpedo weights 42 pounds. I estimate the model will require 12-15 pounds of internal ballast to sit at the waterline I want - about 1" below the top of the copper at the bow, and 1/2" at the stern.

The rods have a nylon lined nut at their top, and a slot cut into the top end so a screw-driver can be used on them. The forward one will be hidden by the galley stack and the aft one is inside the skylight in front of the wheel.

The torpedo itself will be painted either black, dark gray, or dark green - I haven't decided yet.

The great thing about this set-up is that the rods can be loosened, and the model lifted away leaving 42 pounds of ballast on the cart.

I still have to design a launching cart..

like this maybe? Probably not.

January 2010 Trimmings and Gunports

Constellation had an enclosed head, typical of ships of her era. This was framed with some wood from a broken window shutter, and planked in basswood. There were heads up here, and I imagine some grating, but my information on what to put in here isn't complete. I do know there was a pipe that ran down where the planking meets the stem to the waterline to guide the effluent to it's destination.

The stern moldings were different in 1856 than what the ship carries today. The stripe didn't carry around the transom then.

Constellation drydocked at Boston ~ 1859

Tracing the stern off the model onto paper, I then scanned the tracing and created a template to get the moldings on right.

and further detailed the quarter galleries..

The model is meant not only to actually sail, but to do so in the Chesapeake Bay as opposed to some nice placid lake or pond. That why she was made to this scale and why I though it better to not model the gundeck and interior - it's that much less water access to worry about.

The real ship had split gunports that closed around the muzzle of the gun with a tampion in the muzzle. I opted to mold the whole thing in resin. I made a simple stamp of wood with bits of dowel to represent the gun muzzle and a smaller bit for the tampion. This I pressed into clay, then pressed in other details like port lights with a tube, hinge straps were thin wood glued to the stamp, bolt heads using an allen wrench, etc.

On the hull, each gun port was cut out through the outer glass layer and the wood battens, leaving the glass mat inner layer intact. The resin gunports where then glued into each hole with plenty of slow cure epoxy to fill any gaps or voids.

The ports in the transom were cut out, but they'll get windows placed there with open gunport lids.


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