Well done for what it is
A rather overplayed genre, but a very nicely made flash anyways. Great graphics, smooth, no visible glitches, though I did find the heavy gravity and occasional overlap of hazard objects outside of their expected areas (i.e. windmills that kick out into the open space outside) to be frustrating. A bit of physics retuning and level design tweaking would make this even better.
The lack of countdown timer, fuel, or other constraint, as well as the simple need to collide with the target (instead of landing) made it easier in theory than many such games, so the addition of some such constraint, along with the above fixes, should keep the difficulty about the same while adding more interesting considerations into the gameplay.