Drop the gradient as well as the text. Flip the whole logo vertically so that the lines are moving in a "forward" direction, think "propulsion," then enlarge the lines so that they take up a majority of the inner circle. Take a look at some popular logos and see how they combine their logo with text at times and not at others. If you want the gradient then you will need create a larger distinction in black to blue, they feel too close in tonal range.
Remember, as already said here in previous posts, the logo, if successful, should work at various sizes.
These ideas are just that, ideas, in the end I really think just coming to terms with what propulsion means and then asking yourself does this logo do that? currently I would say it does not but some simple alterations might get it there.