How Much Gas Would You Use to Travel the World in a Hot Air Balloon?

We were wondering how much gas you would need to travel the world in a hot air balloon and what it would take to accomplish this feat. Balloons are made of reinforced nylon fabric – they are light but very strong. The most common fuel for balloons is Common Liquid Propane gas (LPG). A two-person balloon costs over £17k, not …

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