thumb|right|A rescue hydrocopter in Kuopio, [[Finland]]
thumb|right|A rescue hydrocopter in Kuopio, [[Finland]]
A hydrocopter is an amphibious propeller-driven catamaran with a boat-like hull, small wheels and pontoon skis (as in a seaplane). An aircraft engine with a propeller and air rudder powers the vehicle over water, ice, snow and land.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).