- #1
karlmartin
- 11
- 0
Hello awesome science people.
I am a an aerospace engineering student and I am currently engaged in completing an assignment regarding a fictional re-design of the wing on a DeHavilland Twin Otter. I do have some difficulty though, since suddenly I have to independently manage to think about a lot of the details involved in the design of a wing.
The current uncertainty I am facing is that the original airfoil for the Otter had a design lift coefficient of 0.5. I have to see if I can find a better airfoil for the tasks of a maneuverable utility aircraft. Now, when I am trying to find a better airfoil, should I still aim to keep that design lift coefficient as the same number or can I change it? What are the consequences if I choose an airfoil with a different design lift coefficient? I know that if I choose one with a lower design coefficient, the airplane would cruise at a design coefficient that will correspond to a less than desirable lift coefficient. However, I am confused about what happens if my design lift coefficient is higher than the 0.5 of the original airfoil. Would a higher design lift coefficient be beneficial in some way? Could you guys please explain? Any help is greatly appreciated.
All the best,
Karl
I am a an aerospace engineering student and I am currently engaged in completing an assignment regarding a fictional re-design of the wing on a DeHavilland Twin Otter. I do have some difficulty though, since suddenly I have to independently manage to think about a lot of the details involved in the design of a wing.
The current uncertainty I am facing is that the original airfoil for the Otter had a design lift coefficient of 0.5. I have to see if I can find a better airfoil for the tasks of a maneuverable utility aircraft. Now, when I am trying to find a better airfoil, should I still aim to keep that design lift coefficient as the same number or can I change it? What are the consequences if I choose an airfoil with a different design lift coefficient? I know that if I choose one with a lower design coefficient, the airplane would cruise at a design coefficient that will correspond to a less than desirable lift coefficient. However, I am confused about what happens if my design lift coefficient is higher than the 0.5 of the original airfoil. Would a higher design lift coefficient be beneficial in some way? Could you guys please explain? Any help is greatly appreciated.
All the best,
Karl