Versatile Landing Gear
I had fun and quite a challenge with this project when attending college. There are many places in the world where it is hard to land an airplane to deliver and pick up mail. I elected to use the Cessna 208 which is used by Federal Express to do short carrier routes but they need paved runways to do so. I fitted a landing gear that can deploy and be used on water, snow, ice and runways to safely land the 208.