simple continuous acceleration

Dear folks,

I have done some clips with tempo changes but somehow still could not figure out how to do a simple continuous acceleration - without the s-shaped curve function of the curve editor.

02.jpg (29.57 KiB) Viewed 429 times

This is what I am aiming at:

03.jpg (32.57 KiB) Viewed 429 times

Is this possible at all?

Thanks for your help!

I think the best we can do is grab the Bezier handle and drag it out.