(Ads for the notorious Mini-500 single-seater kit from Revolution Helicopters claimed that owners could build one in 40 to 60 hours, but after a spate of well-publicized fatal crashes, hard ...

In this final installment of the Hangar 9 MB339 RC jet build series, we put on the finishing touches and complete the assembly! Watch as we assemble the last parts, calibrate everything, and prepare ...