History's Most Dangerous Aircraft Models

The XB 15

This was an Airforce titan. This plane was so big that they could barely find engines big enough for it to fly faster than 200 mph. It was never developed any further than this, but it did make a decent cargo plane!

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The More You Know

  • There are snakes with two heads, which compete with each other for food.
  • The world's most densely populated island is the size of two soccer fields.
  • John Tyler, the 10th president of the United States, was born in 1790. He has a grandson that is alive today.
  • The word "muscle" comes from a Latin term meaning "little mouse."
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