A Radial engine was used on old bi-planes - many (round)cylinders around one shaft - Rotary engines have a triangle type piston - not round. Instead of going up & down ,they move in a somewhat triangle circle.
The largest tsunami on record strucky Lituya Bay in a  remote portion of Alaska in 1958. It was overâ¦ 1,700 feet tall. The  meteor impact associated with the extinction of the dinosaurs is  believed to have generated a tsunami 3,000 feet to 1 mile tall.
The biggest tsunami recorded was 1,720 feet tall and chances are good it will happen again. The tsunami that hit Japan in March 2011. Fifty years ago this week, the Great Alaska Earthquake ravaged the Pacific Northwest, killing more than 100 people.