David Barford is one of a small group of amateurs experimenting with man - powered aircraft . His glider is 22-meters wide and can take flight under David 's man - power . If you walk past the Barford family garage in Northampton , England on a Sunday afternoon , there 's every chance you 'll see a 10-meter-long wing sticking out into the driveway , and a dad and his two kids building a peculiar transparent airplane . It is the hand - powered aspect that most appeals to him .
David Barford is one of a small group of amateurs experimenting with man - powered aircraft . His glider is 22-meters wide and can take flight under David 's man - power . It is the hand - powered aspect that most appeals to him .