2All achievement begins with an individual who says “I can do it.” ChallengeTo design and construct a model hot-air balloon. Flights will be timed and the balloon that flies for the longest time is the winner.All achievement begins with an individual who says “I can do it.”Approximate project completion time: 2 hours.
3BackgroundA typical hot-air balloon consists of an envelope which is commonly made of nylon or polyester.
4BackgroundThe envelope is made of a combination of sections, called “gores”. Balloons often have 8, 12, 18, 20, or 24 gores.
5BackgroundLoad tapes are sewn into the gores as they are manufactured. The load tapes are then connected to the attachment cables for the basket or gondola.
6BackgroundHot-air balloons have a deflation port at the top, and a maneuvering vent on the side.Propane is the most common fuel source for the burners.
7Supplies Dry cleaner bags Kite string Rubber bands Paper clips Masking tapeStrawsTyping paperBecause of the station arrangement of the tools, not every student will perform each step at the same time.
16Discussion Why did the winning design perform as it did? How could the winning balloon design be improved to increase flight performance?What was your group’s strategy?Allow the students to brainstorm among themselves to answer the questions.
17Discussion Did any leaders emerge from the group? If so, how? How well did your group work together and how could it have been improved?Allow the students to brainstorm among themselves to answer the questions.
18All achievement begins with an individual who says “I can do it.” Applause! Applause!We hope this activity has helped you feel that you “can do it.”