Vintage WW1 biplane in flight, 1972

The transcript discusses the evolution of aviation materials from wood to tubular steel, highlighting the efforts of pioneers in achieving safe and reliable flight. It also marks the summer of 1914 as a significant period in aviation history.

What material replaced wood in the construction mentioned in the text?

• Plastic

• Aluminum

• Tubular steel

• Concrete

Describe the state of frailty in aviation within five years as mentioned in the text.

What was the target that many pioneers aimed for in aviation?

• Speed

• Safety

• Reliability

• Altitude

What did the pioneers believe was now within reach?

In what year is the summer mentioned in the text?

• 1910

• 1912

• 1914

• 1916