Why helicopters are so expensive?

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5. Are helicopters or planes more dangerous?
6. How much does a helicopter pilot make?
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Tags

1. #aircraft
2. #helicopters
3. #keeps
4. #helicopter
5. #vehicle
6. #production
7. #higher
8. #which
9. #complex
10. #expensive
11. #moving
12. #complexity
13. #price
14. #parts
15. #produced
16. #automobile