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- 48 Why did navies abandon armour?
- 41 What is this aircraft that appeared at Oshkosh 2017?
- 36 Have jet engines ever "Sheared" off?
- 34 What is the difference between a barrel roll and an aileron roll?
- 30 What is the difference between a barrel roll and an aileron roll?
- 27 What are the advantages of more than 4 propeller blades?
- 27 What are these large yellow circles painted across the runway?
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