10 Best Experimental Airplanes to Build and Operate - Dwayne's Aviation Watch in HD on YouTube! Share on Facebook! Experimental airplanes are great, they are freedom, the broad flexibility it offers in terms of upgrades and maintenance is completely awesome. You are at liberty to do what you like with a homebuilt. Nothing feels better than having a plane you can modify to your taste, improve, and personalize in ways that factory airplanes forbid.