Bad Piggies Flight in the Night Level 4-3 is three starred using one contraption but two runs. Have a powered wheel on both the top and bottom of the contraption, guaranteeing speed no matter its orientation. To grab the star box, you cannot use the powered wheels on the middle level, since they push in the wrong direction. To beat the clock, use the powered wheels to slow down enough to fall smoothly into the bottom level, then race to the finish!
If you have a different strategy for completing this level feel free to leave a comment below.