We had a message from lab_13 Ghana, it was a very enthusiastic video about their boat competition! We wanted to win so we read the rules very carefully then we got Miss Draper’s tool box and got to work.
First we made the base of the boat, it was really fun! We made it out of balsa-wood as it’s a soft wood. We did a point at the front of the boat so it’s stream lined. We stuck it together with hot glue: it won’t leak and it won’t unstick. The first glue-gun we tried wouldn’t work, but luckily Miss Draper had a different one, though it still took 10 minutes to warm up! While we waited we got the design ready on the board. To make the right pieces we measured wood then cut it with a saw, sanded it smooth then stuck it together- making sure there were no gaps! We then started thinking about how it would move. Ollie got a load of motors and batteries, then connected them together to make the motors spin. We made propellers like on an aeroplane then attached them to the motor. We used a drill to add holes to the boat to put the propellers through. The propeller span really fast but when we put in the water it went in circles. So we had to change the design, we put propellers out the sides instead as paddle wheels- that worked! We each made a different design of propeller to test which one was the fastest.
We made a film about how we made the boat, and showed it floating and travelling the 1m it had to do to enter the competition. We’ve sent it to Lab_13 Ghana, now waiting for the results!