After modifying the variables that have been constrained by unusual circumstances, we are now on the stage of preparing for the experimental drop phase with a parachute. With new adjusted variables, we’ll need to revise our data procedures and edit our data table and reset some of the criteria we set before the process of building the parachute.

In case you forgot what the purpose of our delivery is, we are going to restate the use of Project Collision. We, DJBT is a delivery company that is focusing on small electronics from smartphones to tablets, we promise our customers that they will be able to receive their package within a radius of 30 centimeters inside the targeted destination. There won’t damage dealt with delivery from a 3.82 meter or above drop. Therefore, we will need to secure the air resistance the parachute is going to make is sufficient enough to slow down the falling speed, which will ensure a soft landing.

As part of the team contribution, my partner Harry and I have been researching how the size of the parachute affects the drag/air resistance of the falling object. If we were to follow the original project procedures, we are supposed to record down the parachute analysis. And put it into the data table, however, because of exceptional conditions. The team is forced to move on with the project more independently. This means we will have to modify the variables, evaluate new constraints to the project, and estimate new challenges all by our self. For me, I practically changed every base variable. First of all, I changed the height of the drop from 5 meters to 3.82 meters. Thus, I can only find one box at my house. I’ll have to deal with it, the dimensions of this box are much smaller than the one originally, we are going to use. Second of all, I changed the object we are going to put inside the box to represent small electronics, from books to plastic water bottle with measured amount inside that’ll weigh the box to approximately 400 grams. Third of all, which is the most critical part. I have decided that light and large enough canvas can be used to build the parachute, instead of plastic bags. The most challenging part of building this parachute for me is that I need to find something that can substitute for suspension lines. Although I am facing a lack of materials situation, I will find a way to solve this problem eventually.

Data procedure:

  1. Bring a device that can record and the box with parachute on.
  2. Set up the device where it can record the whole drop
  3. Make sure no one is near the drop zone
  4. Put the box on the cabinet near the staircase handle edge
  5. Push the box down the cabinet
  6. After the box landed stop the recording
  7. Repeat the process a minimum of thrice before switching parachute size.

Dimensions of the box:

Length: 15.5 cm

height: 24 cm

width: 7.5 cm