Hello everyone,
I've got a question that's been puzzling me all day. What's bothering me is I don't understand how two engines drive one shaft or rotor shaft on a helicopter. The picture I get in my mind is the gears are being driven by one engine while the other engine doing something but I just don't know what it is. I know that the other engine is driving the rotor shaft too, but how? I guess my question is how does two turbine engines drive the helicopter's main rotor shaft together at the same time? Someone please help me understand.:helpsmilie: