On the Michelin Tire website there is a video explaining what to do in a front end tire blow out. Its worth watching.
I have had several blowouts on RV's , one being on the front end while traveling in LA at 65 MPH. You should not use your brake, but instead maintain steady throttle, not accelerate, and move to the side as soon as safety allows.
If you brake , it is actually harder to steer. If you maintain throttle the vehicle maintains its path of travel and allows you to steer .
http://www.michelinrvtires.com/miche...Critial_Factor