Whenever Kirk would fly DeHavilland Otter N6868B his adult children would say to their kids, "There goes Grandpa," as he would fly by. It wasn't long before the kids would hear an airplane and immediately look to see if it was "Grandpa's Plane." The story came about as Kirk heard accounts of his grandchildren getting excited as his airplane would fly overhead and hearing the grandkids say, "We saw you fly by today Grandpa." Constant requests for rides from the grandkids cemented the storyline.