The final boat design consists of a bowl covered with tape and aluminum foil to prevent water from leaking in. Based on prior tests, the boat that held the most mass did not have a balloon. So the final design removed the balloon and cup, which were unnecessary weights not needed to carry pennies. In tests, the new boat design held over 400 grams on average.

1. Final Design
Mckenzie Patrick

2. Blueprint

3. Rationale
In the final design blueprint, the boat consists of a bowl,
tape, and aluminum foil. The tape and aluminum foil
cover the majority of the bowl to prevent water from
leaking in. The cup and balloon have been removed
from the boat due to the results of the prior investigation.
In the prior investigation, it was discovered that the boat
with a balloon reduced to a circumference of 0 cm held
the most mass, 408.5 grams. The boat with a balloon of
a circumference of 35 cm held only 9.5 grams. Since the
balloon had a circumference of 0 cm, the balloon was
just more weight. So, it was removed. The cup is also
an unnecessary weight as it was used to carry the
pennies. Now that the bowl isn’t holding the balloon, the
pennies can occupy its space.

4. Data Table
Mass of
Mass
the
Boat
Held
(g)
the Boat (g)
Trial
1
Trial
2
Trial
3
Trial 4 Trial 5 Trial 6 Trial
7
Trial 8 Trial
9
Trial
10
Average
20 420 430 425 442.5 415 432.5 430 430 417.5 422.5 426.5

5. Photos

6. Photos