Mr. Budzichowski cut out the foam board for us and we followed the tutorial and built the glider.
Picture of the Gilder Body
We used hot glue to put the pieces together.
Picture of the Wing
We use a pen to create the creases instead cutting the foam off at an angle because it had a higher risk of damage the board.
Picture of the Intact Body
The wood stick is plug into the body to hold the wing together using rubber bands.
View of the Glider at an Angle
Side View of the Glider
Back View of the Gilder
Top View of The Glider
Before I added the weight, the tail was heavier, which means Center of Gravity (COG) was far behind.
After I added the weight, the glider became more balanced. However, it was still slightly tail-heavy, which caused stalling in my first trial.
In my first trial, I decided to make the glider for tail-heavy. The tail-heavy, eventually resulted in the stalling for the plane. Clearly illustrated in the slow motion video, the glider first went straight up, and then drops straight down to the ground. Eventually, the weight came off the glider and the nose was opened. I had to use tape to fix the nose. The stalling was cause by the position of the Center of Gravity on the glider. It was too far back when the tail is heavy.
After my first trial, I adjusted the weight and made the glider more balanced. Now the glider is more flat when it is on the jig. I asked one of my fellow student Andrew Puky to fly my plane. This time it glided so well and flied a really long distance. However, the gilder ended up banking, which means it steered to the right once again. I checked the wing and found out that the wing was not perpendicular to the body when I flied it. The right wing was more tilted behind than the left one.
Since I already had a almost perfect trial on my second go, I decided to test the glider when it is head-heavy. I first straightened up the wing. Next, I changed the position of the weight and made it more head-heavy. This time, the gilder dive straight to the ground. It was because the COG of the glider was too in front and caused the dive.