So, lets build a plane. Stock. That fits in a mk3 cargo bay. A jet, naturally. So the wings MUST fold. Say they tilt forward 90 degrees and then move back flat against the fuselage. Then it moves on powered wheels. I know. It's absurd. But it's a challenge. Get building!!! Any suggestions, @Azimech and @selfish_meme? Because you two are good at building hinges stock. Is it even possible with ksp physics?