Why racket head oval, and not a circle?

[pcll99]

Why is racket head oval, and not a perfect circle?

[SolsticeOfLight]

You shouldn't be using the sides of the racket
And increasing the length of the main vertical strings has its advantages.

[phili]

I guess your sweet spot would be really small compared to oval heads or even isometric head shape

[SolsticeOfLight]

Isometric head shapes have a larger sweet spot ...

And actually, whether the sweet spot is larger or not depends on how you transform it into a circle. If you do it by making the head wider (without changing the length of the head), then your sweet spot will increase in size. If you make it a circle by decreasing the length, then the sweet spot will be smaller.

[phili]

Oh right, I meant to write that isometric heads have even larger sweet spots than oval heads.

I was under the assumption that the size of the surface area stays the same, then you will have a smaller sweet spot compared to real badminton rackets.

[SolsticeOfLight]

The sweet spot is where the longest vertical strings coincide with the longest horizontal strings (approximately).

[pcll99]

how would the size of the sweet spot be different if the tension is 24V:24H as opposed to 23V:25H?