I am against allowing distinct questions for each plane's L/D ratio, which isn't normally published to begin with.
- There is no value from such specific questions.
- This site is not for asking where to find aviation-related data, in this case, each plane's L/D ratio.
Asking about and to understand the underlying physics (L/D ratio) is more on-topic than asking for plane-specific data.
I think the suggested duplicate, How far can airplanes glide? is more than enough to address would that plane fall like a rock or glide.
In general, and similarly, if the older question were about a specific plane, then it too would suffice answering a future general question about the same thing.