World’s coolest grandpa and his SR-71

Do you have a cool grandfather? Do you think you are a cool grandfather? Well, you’ll have to go a long way to beat this guy.

He’s built an absolutely amazing remote controlled plane – a scale model of the SR-71 “Blackbird”. Not only did they build its jet engines and include retractable landing gear, the thing sounds amazing.

My grandfather made aquariums. Nice but not nearly as cool as jet planes!