Steamboat Building

Work has begun building a section of launch #199. We are building the launch true to HMCo techniques as best we can. The section will be about 2/3 of the length of the 30 foot  launch (frames 7 to 26) – enough to include the engine cooling line underwater.

The first step was to build a lofting table on which the forms for the ribs will be built:

loftingtable-copy

Notice the supreme concentration……

The lofting table was built to allow full size creation of the rib forms.

Using a table of offsets, each rib mold was laid out on the table:

formlayout-copy

All the forms were then combined upside down to form the basis for actually building the boat:

199hullmolds

While the boat hull is being built, the layout of the engine and boiler is under study. The drawing we are working from shows a little detail on the installation:

engineinstall-copy

 

Unfortunately, some detail is missing on piping and peripherals. So we are reaching out for help from others. One interesting museum near us is the New England Wireless and Steam Museum (www.newsm.org) that actually has a much bigger version of an HMCo steam engine on display that actually runs! See our visit earlier in this blog.

 

We have also enlisted Chris McMullen from New Zealand as a technical advisor. He is building FROM SCRATCH a copy of our engine and the associated Marsh Pump and is also building a replica of the vessel “Vapor” to put it all in! Amazing!

 

Here is more information on Chris’s boat:

https://waitematawoodys.com/2014/07/07/chris-mcmullens-herreshoff-steam-launch/

Next up will be more information on our progress!

 

 

 

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