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Question 1 of 10
Pbh
medium
What is the typical maximum envelope temperature for a hot air balloon and why is it limited?
A
A. 250°F — limited by basket wicker integrity
B
B. 120°C (250°F) — limited by FAA regulation only
C
C. Approximately 250°F (120°C) at the crown — limited by the melting and degradation temperature of the envelope fabric (nylon or polyester)
D
D. 400°F — limited by propane combustion chemistry
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