Which aircraft uses a "jaw lock" clamp tow bar?

The B737 utilizes a "jaw lock" clamp tow bar due to its design specifications and operational requirements. The jaw lock mechanism provides a secure attachment to the aircraft's nose gear, ensuring safe and efficient towing. This feature is particularly beneficial for the B737, which is a popular aircraft in the fleet and has a specific tow bar configuration designed to handle its weight and balance during ground operations.

The use of a jaw lock clamp is essential for maintaining a firm grip while towing, minimizing the risk of accidental detachment. This is crucial for maintaining safety protocols and ensuring that the aircraft can be moved without incident on the ramp or taxiways. Other aircraft models, like the B757, B767, and A350, may have different tow bar requirements or configurations that do not involve the jaw lock clamp, thus explaining why they are not the correct answer.