Applicant’s invention comprises a method to test a tape drive and its mid-tape recovery abilities. The anchoring device is adapted to maintain at least part of the device within a pyloric portion of the patient’s stomach and to intermittently engage, without directly attaching to, stomach tissue. Only if the certain condition is met, processing for recognizing the specific image is executed by a recognition unit. A gripper carried by the launch carriage can have at least one grip portion in contact with the aircraft while the launch carriage accelerates along the launch axis. Duplex calls are also able to be interrupted with a request for a simplex call. In one example, driveline disconnect clutch operation is adjusted in response to vehicle mass so that the vehicle may operate similarly at lower and higher vehicle masses.