Challenge 1
any changes
Original constraints
I had to make some few changes to create the glider that would fly. The wing location is 13cm and the wing span was changed from 50 to 47 cm, as the root chord was also changed to 7.50 cm. The stabilizer has a span of 20cm instead of 25 cm and changed root chord to 7cm. This changes were made to have a center of gravity at the right place.
Glider
conclusion
1. Explain which glider or aircraft term were difficult to understand and the correct definition.
The terms that were difficult to understand was horizontal and vertical stabilizer. I thought of it as since they are named as horizontal and vertical stabilizer, they should stabilize the way that were named not opposite direction. But, I now learned that vertical satbliizer stand vertically and stabilzes horizontally. And, vice versa for horizontal stabilzer.
2.Explain any challenges if someone else were to construct your design using the AERY print.
The main challenge would be the horizontal stabilizeer. Because it does not show the actual measurement of angle that needs to be cut. Another problem is that it doesn't show the thickness of the material.
3. Explain any challenges faced using the AERY software and how you overcame these challenges.
My only challenge was how to work with this program. When I did the analysis of my glider, it gave me a recommended changes which should be helpful. But, it didn't gave me a specific measurement. It would be more helpful if this program gave more adjustment with some details instead of giving us thhte general feedback. It took me a lots of trial to figure out right measurement.
The terms that were difficult to understand was horizontal and vertical stabilizer. I thought of it as since they are named as horizontal and vertical stabilizer, they should stabilize the way that were named not opposite direction. But, I now learned that vertical satbliizer stand vertically and stabilzes horizontally. And, vice versa for horizontal stabilzer.
2.Explain any challenges if someone else were to construct your design using the AERY print.
The main challenge would be the horizontal stabilizeer. Because it does not show the actual measurement of angle that needs to be cut. Another problem is that it doesn't show the thickness of the material.
3. Explain any challenges faced using the AERY software and how you overcame these challenges.
My only challenge was how to work with this program. When I did the analysis of my glider, it gave me a recommended changes which should be helpful. But, it didn't gave me a specific measurement. It would be more helpful if this program gave more adjustment with some details instead of giving us thhte general feedback. It took me a lots of trial to figure out right measurement.
challenge 2
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changes are in blue
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Conclusion
1) Explain difficulties faced with this second design challenge compared with the first challenge.
It was difficult to get the vertical tail to be within the restriction and pass the inspection. This program always wanted me to increase the area of the wing. After many trials, I decided to change the size of my glider. As a result, I was able to create a glider that actually fly.
2) Explain how these constraints impacted your glider design compared to the first.
With canard wing, the horizontal stabilizer shifted the center of gravity more towards the back. It was hard to balance the glider.
It was difficult to get the vertical tail to be within the restriction and pass the inspection. This program always wanted me to increase the area of the wing. After many trials, I decided to change the size of my glider. As a result, I was able to create a glider that actually fly.
2) Explain how these constraints impacted your glider design compared to the first.
With canard wing, the horizontal stabilizer shifted the center of gravity more towards the back. It was hard to balance the glider.
Glider (Final)
video by: Andrew Miller
I was not able to reach 50ft. My longest flight was the first test flight which flew 25ft. I think it would fly if I placed my wing at the accurate location. Because, if my glider didn't turn to the right during my first test flight, it would've reach the goal.
conclusion
1. Explain differences between your glider's performance through flight testing that was unexpected based on the AERY software predicted flight characteristics.
when I started to build my glider, I didn't expect my glider to be this small. Even though the AERY showed the measurement of my glider, I wasn't able to picture it. And another thing that I unexpected was the velocity. During my glider design in AERY, I set my velocity as 20km/hr. But, once I finished the construction of glider, I realized it's not possible to reach that speed.I think my glider would fly better if it actually reached the velocity of 20km/hr.
2. Based on the entire flight test data, from every group, explain conclusion that you can make about optimal glider designs for long distance flight.
I think optical glider design seems to be a larger wing span and longer fuselage which is just making the glider bigger. When I saw my classmate flying their glider, bigger glider tends to fly straight and longer distance.
1.Was the glider as stable as you expected? Why or why not might this be so?
I actually made 2 gliders. Since my first one was unstable, I used my leftover parts to create a stable glider. Because, I misplaced the center of the wing. But, my second glider was stable with accurate location of the wing.
2.What techniques did you use to trim the glider for straight and gently descending flight?
I was going to use the metal tape on the aileron to set my glider. But, I couldn't find the metal tape.
3.How many test flights were required to get the glider trimmed for long distance, straight line flight? Was this expected? Why or why not?
During my first flight, I noticed that my glider turned to the right in the midair. So, I went back to the lab and analyzed my glider. I found that I labeled the center of the wing wrong place. When I created new glider, It flew much better with the pitch and directional stability.
when I started to build my glider, I didn't expect my glider to be this small. Even though the AERY showed the measurement of my glider, I wasn't able to picture it. And another thing that I unexpected was the velocity. During my glider design in AERY, I set my velocity as 20km/hr. But, once I finished the construction of glider, I realized it's not possible to reach that speed.I think my glider would fly better if it actually reached the velocity of 20km/hr.
2. Based on the entire flight test data, from every group, explain conclusion that you can make about optimal glider designs for long distance flight.
I think optical glider design seems to be a larger wing span and longer fuselage which is just making the glider bigger. When I saw my classmate flying their glider, bigger glider tends to fly straight and longer distance.
1.Was the glider as stable as you expected? Why or why not might this be so?
I actually made 2 gliders. Since my first one was unstable, I used my leftover parts to create a stable glider. Because, I misplaced the center of the wing. But, my second glider was stable with accurate location of the wing.
2.What techniques did you use to trim the glider for straight and gently descending flight?
I was going to use the metal tape on the aileron to set my glider. But, I couldn't find the metal tape.
3.How many test flights were required to get the glider trimmed for long distance, straight line flight? Was this expected? Why or why not?
During my first flight, I noticed that my glider turned to the right in the midair. So, I went back to the lab and analyzed my glider. I found that I labeled the center of the wing wrong place. When I created new glider, It flew much better with the pitch and directional stability.