Pop PopBoat Submitted to: Mr. O’driscoll Submitted by: Kassidy, Hailey & Stephanie
Problem Situation Your group has to design and build a boat that will be powered a distance of 12ft. Each Boat is released at the same time, to race the 12ft distance.
Statement We have to design and build a fast boat.
Specifications and Limitations The maximum length of the boat has to be 40cm, the minimum length is 20cm. The minimum width is 8cm. You can’t use AC or DC power. The boat has to move under it’s own power.
Generate Options This is a pop pop boat, this was our favourite boat. This boat is made of household items and looks very easy to use. It’s very light weight and looks like it will be easy to use. This is a rubber band boat, it looks like our fastest option. All you have to do is wind up the rubber band and let it rip! The balloon powered boat is not as fast, and doesn’t go straight, but the way it works is really cool!
Materials * Coke can (boiler) *Tea Light Candle * 2 1L milk carton (structure) * Glue gun or sticky tack * 2 straws * Water * Stapler
Procedure Step 1: Design or draw an outline of your boat. Step 2: Gather all of the materials needed. Step 3: Put on safety goggles. Step 4: Cut your carton in half, to the shape of a boat. Step 5: Cut the top and bottom off your coke can. Step 6: Cut the can so it’s 6cm wide and 18cm long in a rectangle shape. Step 7: Fold the rectangle in half. Step 8: Mark out a 1cm line around one half of the boiler. Step 9: Cut the 1cm line that is on one side of the rectangle. Step 10: Roll the sticky tack out to be a line of ½cm fat. Step 11: Outline the longest sides of the cut rectangle with sticky tack. Step 12: Fold the rectangle in half, push hard to ensure that it sticks. Step 13: Seal the edges with more sticky tack. Step 14: Fold over the tabs and seal it with pliers. Step 15: Take scissors and cut off the access tabs. There should be one long tab left at the bottom of the rectangle.
Procedure Continued.. Step 16: Roll out some sticky tack that is flat and about 1cm wide , and lay the top of the straw on the tack, roll the tack over the top of the straw, then follow it by another straw. Step 17: Make sure the two straws are sealed well together with the sticky tack. Step 18: Open up the end of the boiler, and push in the two straws, add more sticky tack around the opening of the boilers. Step 19: Take your scissors, cut the bottom tab beside each straw. Step 20: Fold the tabs over, and squeeze them to make a nice seal. Step 21: Boiler is now complete! Step 22: Get a tub of water, place the boiler in it, blow into the two straws and look for bubbles. If there are bubbles, it means you need to squeeze it again or add sticky tack. Step 23: Take your carton and draw a line down the middle of the carton, cut the carton in half. Step 24: To make the cabin, take the other half of the carton and cut the bottom off. Step 25: Cut a small hole in the bottom of the boat and stick the 2 straws down in the hole. Step 26: The hole should be half way up the carton and in the middle. Step 27: Put a thin layer of sticky tack around the hole on the bottom of the boat. Step 28: Take your boiler, and poke the straws through the hole in the bottom of the boat.
Procedure Continued.. Step 29: Fix the straws, firmly in place with clear tape. Step 30: Cut off the straws sticking off the back of the boat. Step 31: Using a stapler, put the cabin in place Step 32: Make sure the sticky tack ring is secure around the straws in a tight seal. Step 33: Our boat is now water proof, and complete!! Step 34: Before we use it, we need to prime our boiler with water. Step 35: Take a straw, split the end of it. Step 36: Poke it into one of the straws at the back of the boat. Step 37: With a mouthful of water, blow it into the straw, if water comes out of the other straw your boat is ready for the water. Step 38: Place a tea light candle under the boiler, and wait for it to warm up. Step 39: The boiler will then start popping, and off she goes! *Note: if your boat doesn’t start moving right away, try adding another tea light candle for speed.
Conclusion • 1. Did your boat complete the assign task? Why or why not? No, our boat did not complete the assign task, our first boat which was the pop pop boat caught on fire because the epoxy glue wasn’t dried and the flames caught the boat on fire. If we had another heat source to put under our boiler I think the boat might have worked. The candles didn’t heat up enough to work the boiler, so the boat didn’t move. Instead it started to burn the epoxy and we had to put the boat in the water so it didn’t completely burn.
Conclusion • Did you redesign your boat? Did it work any better? Yes, we did redesign our boat. We redesigned because our first boat caught on fire. We didn’t want to try and burn another boat, so we settled on a rubber band boat. The rubber band boat was made out of Styrofoam for light weight. It went a lot further than we expected, we now know how to improve our last boat, but perfectly centering the keel, it would probably steer straight.