Hot Air Balloon 5m

This model allows you to understand the principles of thermodynamics in a fun way. For launch, you can use heat from an outdoor barbecue (away from open flames) or an indoor fan heater. Once the envelope is filled with hot air, it rises majestically. The kit includes 30 metres of line on a manual reel to maintain control. Please note this is an educational model and not a toy: the envelope is flammable, so launching must be performed by an adult, away from any direct flames.