Model 1- Boss Baby
Results
This RRV gets a solid 7.5/10 from me. I am not sure if the octagonal base had that much of a notable effect in the fall of the RRV. The real star of the show here are the wings. It had a good amount of drag because of the size of the wings, so it fells fairly slow. The flaps on the wings did exactly what I predicted.... it made the RRV rotate. In the future I would make the flaps a little bit wider, because then more air would get caught under them, causing more rotation.
This RRV gets a solid 7.5/10 from me. I am not sure if the octagonal base had that much of a notable effect in the fall of the RRV. The real star of the show here are the wings. It had a good amount of drag because of the size of the wings, so it fells fairly slow. The flaps on the wings did exactly what I predicted.... it made the RRV rotate. In the future I would make the flaps a little bit wider, because then more air would get caught under them, causing more rotation.
Model 2- Creepaaaa
Model 2 wing diagram
In all her beauty. I can practically here that dreaded sound.... psssssssss
This model has a simple cubed bass with layers of duct tape added to the bottom for weight.
|
Model 2 base diagram
I made rectangular wings taped diagonally to the bass.
Here are the results after dropping it off senior deck.
|
Results
I am pretty happy with how Creepaaaa fell. I purposefully made this RRV the exact opposite of the other two I made previously. I made it very small with a tiny yet heavy bass and instead of putting flaps in the wings I attached them at an angle. It fell very fast and rotated more than any of my other RRVs. It looked really cool falling. however, it would most likely not support an egg because of how small it is and how fast it fell. If I were going to improve this model, I would add more surface area so that it had more drag and would fall more slowly.
I am pretty happy with how Creepaaaa fell. I purposefully made this RRV the exact opposite of the other two I made previously. I made it very small with a tiny yet heavy bass and instead of putting flaps in the wings I attached them at an angle. It fell very fast and rotated more than any of my other RRVs. It looked really cool falling. however, it would most likely not support an egg because of how small it is and how fast it fell. If I were going to improve this model, I would add more surface area so that it had more drag and would fall more slowly.
Summary
I really enjoyed this project. I was able to get all three of my RRVs to rotate which made me pretty proud. In both of my RRVs, I really only focused on the wings, and just put random shapes on the base. My two bases served as a weight to make the center of mass on my RRVs at the bottom so they would stay on a straight up and down axis, allowing it to fall at an quick angular velocity, and not tip over. I also added more mass to the bottom to make the gravitational force stronger on the RRV and cause it to gain acceleration sooner so that it would begin to spin earlier. In the future, I would like to get a better understanding for how different sizes and shapes effect the way an RRV falls.
Although the wings on my two RRVS were different, they were both used to control the vessels degree of freedom called yaw.. There was one aspect of the wings (the flaps for model 1 and the diagonal angle on model 2) that caught the air and caused a force to be applied sideways, causing torque. As it fell, this torque was iterated due to the law of inertia, and as more and more air hit the side of the wings it caused rotation. If I just had flat wings, the air could not get caught on anything and just flow straight up, causing the RRV to fall in a straight line, which is translation.
My first RRV has large wings that allows for a lot of drag, so it fell at a slower velocity than my second smaller RRV. My second RRVhad diagonal wings which left a big surface for the air to catch on. I plan to take these two observations with me to my next RRV design.
Although the wings on my two RRVS were different, they were both used to control the vessels degree of freedom called yaw.. There was one aspect of the wings (the flaps for model 1 and the diagonal angle on model 2) that caught the air and caused a force to be applied sideways, causing torque. As it fell, this torque was iterated due to the law of inertia, and as more and more air hit the side of the wings it caused rotation. If I just had flat wings, the air could not get caught on anything and just flow straight up, causing the RRV to fall in a straight line, which is translation.
My first RRV has large wings that allows for a lot of drag, so it fell at a slower velocity than my second smaller RRV. My second RRVhad diagonal wings which left a big surface for the air to catch on. I plan to take these two observations with me to my next RRV design.