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.
Goff says people tend to underrate landslides, both under and above water, as causes. The largest historic tsunami happened in 1958 when a landslide fell into a fjord in Lituya Bay in Alaska, he says. That one generated a wave 30 metres high.. That mega-tsunami claimed only five lives because of the remoteness of the area, and is legendary because of the freak survival of a father and son fishing.