To set an official record, an around-the-world flight
must meet certain requirements. Click here
to see a summary of the rules for around-the-world balloon
2. Which jet stream(s) offer the
best path that meets the rules for an around-the-world
3. During which season do jet streams
appear to offer optimal conditions for around-the-world
balloon flight attempts?
4. Suggest two reasons
why you might not want to use the northern polar jet
stream for an around-the-world attempt.