Space Vehicle control

hi im modeled my first model ever and i wanted to make it fly when my character gets in it i wasnt try to get into complicating scripting write away like making my character disapear and drive the rocket but i would like my rocket to simply accelerate upward i was thing all i had to do is vector 4 up or something like that all i need is for my modell to accelerate up slowly off my planet when i press and hold spacebar for acceleration and A and D to turn how would i do something like this?