The entire cockpit is made of glass! Or so you'd think. Apparently someone realised this was a bad idea and decided that cockpit windows in Star Wars are actually made of something called transparisteel.
Phew!
Transcript
Han: Where's the starter button on this thing?
Chewbacca: I've started the engines. We are well underway.
Han: Is this the nav computer here?
{Luke and Obi-Wan enter}
Luke: Whoa, that's a lot of window.
Han: Ha ha, good flying, eh Chewie? Do you like the way I evaded their fire while simultaneously programming the nav computer?
GM: You've blasted off, but there are Imperial destroyers waiting in orbit.
Luke: That can't be good.
Chewbacca: Ah, our esteemed passengers. Please enjoy the beverage and space chess facilities in our passenger lounge, while your captain and I prepare for the jump to light speed.
Han: Hit the hyperdrive, Chewie. Maybe it's that one?
Luke: What?!
Chewbacca: My dear fellow, I have no intention of being ejected from my seat at this time. I suggest we try another lever.
Han: I say we mash the controls until something happens.
{external shot of ship}
[SFX]: mash mash mash
Luke: Try flying up-up-down-down-left-right-left—