Almost immediately, the Norseman proved itself to be a rugged, reliable workhorse with steady sales. This engine was also upgraded into Jeep's 4-liter workhorse. He especially detested the American-born practice of studying fruit flies, the workhorse of modern genetics. This further shifts the ute away from the traditional workhorse market. For much of its lifespan, it was the business "workhorse" of the Macintosh line. "Thunderbirds Are Go" while still retaining its traditional role of the team's workhorse. The "workhorse" of the unit is Ceremonial Flight. The Transporter is the commercial workhorse in the T5 range, available in over 100 combinations. Cruisers were one of the workhorse types of warship during World War I. About 54,000 were produced and the set was a military workhorse until the 1970s. The MOSFET is considered the "workhorse" of the electronics industry. The Earl treats Sham as a workhorse, albeit kindly. Skipper Brendon McCullum described Wagner before the Test as his "Workhorse". The Panzer IV was the workhorse of the German tank force during World War II. The 4th ACCS was the workhorse of ALCS operations.