Context: The constraints of constructing a flight deck affect the role of a given carrier strongly, as they influence the weight, type, and configuration of the aircraft that may be launched. For example, assisted launch mechanisms are used primarily for heavy aircraft, especially those loaded with air-to-ground weapons. CATOBAR is most commonly used on USN supercarriers as it allows the deployment of heavy jets with full loadouts, especially on ground-attack missions. STOVL is used by other navies because it is cheaper to operate and still provides good deployment capability for fighter aircraft.

Question: Why do the constraints of constructing a flight deck affect the role of a carrier?
Answer: they influence the weight, type, and configuration of the aircraft that may be launched

Question: What are assisted launch mechanisms primarily used for?
Answer: heavy aircraft

Question: What does CATOBAR allow for?
Answer: deployment of heavy jets with full loadouts

Question: Why is STOVL used by other navies?
Answer: it is cheaper to operate

Question: Why do the constraints of deconstructing a flight deck affect the role of a carrier?
Answer: Unanswerable

Question: What are assisted launch mechanisms secondarily used for?
Answer: Unanswerable

Question: What doesn't CATOBAR allow for?
Answer: Unanswerable

Question: Why is STOVL not used by other navies?
Answer: Unanswerable

Question: What is more expensive to operate?
Answer: Unanswerable