What happens if Marine One's rotor blades fail? While I was reading news, I came across this image of Marine One:

This is Sikorsky UH-60 Black Hawk


Citation of Image 1

Citation of Image 2

On a closer look, I see there are two big exhausts just under the blades at the top of Marine One. And there is also a big wing at the end of Marine One.

I know I would be wrong, but I am not sure about it: I thought these two things are inter-related to each other in case of rotor failure, i.e if the rotor fails then the exhaust would pump out air backwards like a blast giving it forward thrust, and the wing at the end would help it in direction or upward/downward thrust balance (just like in F1 racing cars). Essentially making it work like a plane for some time until it lands safely.

I tried searching about it, but could not get information about it. I did come across an older Marine One image whose exhaust is too small and is at the side rather than at the back and this does not have a wing at the back:

This is Sikorsky SH-3 Sea King



Citation of Image 3

Citation of Image 4

I have 3 questions:


Why is the exhaust at the back of new Marine One so big now?
Why is there a wing at the back of the new Marine One ?
What would happen if rotor blades of Marine One fail ?  




Citations
No helicopter can fly if the blades fail.  The overwhelming majority of the lift produced, required to counter gravity, is from the blades. There is some lift from lots of other parts of the helicopter but all combined, nowhere near enough to keep it flying.  The blades are also required to manoeuvre the helicopter. 

It is also most probable, and this what usually happens, that if one blade fails, or is lost, the resulting imbalance in the heavy, fast rotating rotor assembly leads to instant breakup of the aircraft.

The wing at the rear is called an horizontal stabiliser and its job is to push the tail up or down, depending on the load and speed of the helicopter, to keep the fuselage more or less level throughout the operating range of the craft.

Marine One would simply plummet if the blades failed.