Off topic question. Seeing as there are no planes in Blockland, I'm gonna assume you either downloaded an add-on and can't use it, want to download an add-on, can't control a flying vehicle, or have not yet seen the vehicle spawn list. I'm gonna assume the last one, in which case, you need to open the bricks menu, hit "Special", choose "Vehicle Spawn", plant it, then use the wrench on it. If one of those tasks troubles you, try the tutorial. If I did not answer your question, rephrase it.