ft below
or through the lowest clamp member would require the shaft centerline
to be at least 3 feet below the upper deck, and this would contradict
Marestier. These questions indicate the importance of a scaled drawing
when deciding arrangement in the reconstruction of a ship under the
circumstances existing in the _Savannah_. Some models have been built
with the shaft below deck by disregarding the structural and
dimensional objections just outlined.

The question of the number of boilers originally was raised by
Braynard. A single boiler with double flues was a common boiler design
in American steamboats of 1818-1828, and this form of boiler is shown
in a number of Marestier's drawings. In general descriptions, "boiler"
and "boilers" are often used interchangeably, and this probably came
about through confusion over the number of flues. A "single boiler,
double flues," would thus become "boilers," apparently. The Russian
description specifically states there were two boilers, and gives
specific dimensions; though these probably are not exact. Either a
single boiler with double flues, or double boilers, each with a single
flue, could have been fitted in the reconstruction. However, fuel
space is affected and, with double boilers, the cross-sections of the
bunkers are reduced to about 20 square feet each; therefore, the
bunkers would have to become much longer. It may be said that the
boiler capacities in relation to dimensions of the steam cylinder as
indicated in the Russian description far exceed those given by
Marestier. As a practical matter of ship design, it seems that the
single boiler would have been a more logical fitting than double
boilers. The boilers were apparently of copper, and expensive.
However, this matter does not affect the hull-form and dimensions
established for the reconstruction, as the drawings proved. The
Russian description does show that the cargo space was extremely small
and practically nonexistent, indicating the effect of the large boiler
capacity.

All requirements that have been given can be approximated for space
necessary in the hull. It is established that the ship carried about
75 tons of coal and 25 cords of wood. The coal would take up from
about 1,700 to 1,850 cubic feet of space, and because of its weight it
would have to be bunkered alongside the boilers in the lower hold,
where there would be ample room, in the reconstruction, for two
bunkers, each in excess of 30 square