Lesson plan
hydrocopter
, 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. Hydrocopters are used in Arctic coastal regions, primarily Sweden and Finland, during "menföre" (Swedish, bad going), or "kelirikko" (Finnish broken going), when melting ice cannot support ground vehicles and boats are hindered as well. Hydrocopters are often used as a low-cost alternative to hovercraft and helicopters. Hydrocopters are primarily produced in small machine shops or made by hobbyists and have never been mass produced.
Article summary
, 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. Hydrocopters are used in Arctic coastal regions, primarily Sweden and Finland, during "menföre" (Swedish, bad going), or "kelirikko" (Finnish broken going), when melting ice cannot support ground vehicles and boats are hindered as well. Hydrocopters are often used as a low-cost alternative to hovercraft and helicopters. Hydrocopters are primarily produced in small machine shops or made by hobbyists and have never been mass produced.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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