Balloon Project #4

Yesterday we ended up going to class.  The Balloon Fiesta was canceled due to weather.  We worked on our constructions and did some more testing.  We looked at the pattern that we drew out on Monday, and realized that the side flaps were all different lengths.  The pattern we had cut out on Monday had different length sides, and did not fit together well.  We attempted to fit the cut out design together and test it.  Sadly, one of the sides caught fire because we could not center the flame.  Luckily the fire was not terrible because of our fire retarding techniques.  We are thinking of trimming the sides so that they are all the same length, and continuing our tests.  Meanwhile, we flipped over the paper we had drawn our pattern on and made a slight modification to the design.  We are going to try the equilateral design for this model.  We also re-applied alum to this model and started cutting out the design.  We took the cylindrical model out for another test run, this time with more candles.  This time it showed more buoyancy than last time, yet still did not have enough lift to fly before the birthday candles burnt out.