What does "aerotow" refer to in the context of gliding?

Aerotow refers specifically to the process of launching a glider by being towed into the air by a powered aircraft. This method allows for the glider to achieve altitude quickly and efficiently, as the tow plane pulls the glider up to a suitable height before the glider pilot releases the tow line. This technique is widely used because it allows gliders to take advantage of thermals or other lift sources in the air once they are airborne, providing greater flexibility and access to lift than some other launching methods.

The primary benefit of aerotow is the efficient ascent it provides, as well as the ability to reach higher altitudes compared to ground-based methods like winching. The powered aircraft can also navigate to areas with favorable soaring conditions, making aerotow a popular choice among glider pilots.