2020 Autumn Semester Flying Robot Project Team D Article 2October 31, 2020


At the beginning, we modified our trihedral drawing since it was pointed that aspect ratio was too big in the last class After modifying it, we analyzed it by Xflr5. According to the analysis, a tail angle should be -3 degrees in order to stabilize the plane when it lurches ahead.
Then we discussed the structural drawing for our plane, chose the material, and planed how to make it.
Fusion360 was used for the structural drawing. When we made it, we referred to other hydroplanes, especially designing the floats. When the back of floats is cut, a plane will move on the water. Therefore, we decided the shape of the floats like this.
Carbon pipes are planned to be used for the body and main girder, balsa wood for the other parts of the winds, and EPP for the floats. Balsa wood will bend when it gets wet, so its surface is planned to be filed and covered with water repellent spray. EPP is lighter and more durable than EPS. Therefore, it will be more suitable for its floats.
We plan to make a hydroplane, so we selected for flying membranes not paper but waterproof sheet.
By the time we begin to make it, we have to decide in detail how to enable it to take off the ground and from the water and how to prevent devices from getting wet.