Battleship
From Niftytricks
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Battleship
Other wise known as: House Rail
“Damn, she just threw a three over the flat on the battleship!”
A snowboarding rail that angles up then flattens out then angles down again. It is meant to be ridden up, across and down again.
However with enough speed one can use the upwards slanting angle on the first part to launch them up and over the flat and then to land on the downward sloping section of the rail at the end. This is called gapping the flat.