I am quite certain that no aircraft ever has been produced that can fly with a whole wing missing. Many planes can fly with a pretty good chunk of one gone but not the whole thing. In here its pretty easy to bring most planes back with tip missing if you get control as soon as you realize what has happened. Trim full aileron and rudder against the direction the plane is trying to roll and if you in a two engine plane, chop throttle on the engine that is on the good wing and go full power on the engine on the crippled wing. Dropping the flaps may or may not be a good idea. In some planes, dropping the flaps may give you enough lift on the bad wing, so that you can continue in controlled flight. Other planes need to be kept fast so that the control authority on the good wing is enough to keep the plane level. Find power, and trim settings that allow you reasonable control then look for the nearest field. Avoid changing speed and sudden moves if possible. Set a shallow glideslope for the field far out, and fly it right to the ground without cutting power from that setting. Once the wheels are on the deck chop power completely and use differential braking and rudder to keep the nose pointed straight. Its pretty easy in many planes in here, others are quite impossible.