Specifications:
Ws-15"
Material -0.75mm balsa wood

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@kiran rc
Nice build and nice test glide.
Excellent, actually.
Especially your CG estimation and accuracy of build. Even the amount of rudder you had!
Exactly the kind of experimentation, building and flying I want to encourage.

Next.
1. Notice what happened when the speed was high and when it was low?
2. What will happen when you throw it harder?
3. Will it launch as well as it glides?
4. Will it loop? Will it dive straight down like a dart?

Incidentally, the 30 sec challenge assumes launch and landing from/on level ground. Not from a higher elevation to a lower one. But you know this already...