1989. Most M20Ls no longer use this unique engine, as factory support ceased in 2005. In February 1989, the next M20 model was released: the M20M TLS (Turbocharged Lycoming Sabre). It was powered, as the name hinted, by a turbocharged Lycoming six-cylinder engine that produced at 2,575 rpm, and it had a three-bladed propeller. It was capable of cruising at and had a range of and a maximum climb rate of per minute. The first year, the TLS accounted for 30 of the 143 aircraft delivered, and in 1990, this increased to 61 units. Also in 1989, Mooney released a trainer model based on the M20J. Beech, Cessna, and Piper had all stopped production of trainers throughout the 1980s, and the 201AT was designed to fill this gap. From 1989 to 1992, 20 units were delivered. 1990s The next Mooney M20 model was the M20J 201, also designated the MSE, released in 1990 (although few were actually delivered prior to 1991). This was a non-turbocharged model that incorporated many features from the TLS. In early 1991, Mooney decided to offer its Enhanced Flight Screener Trainer model to the general public, given that the Air Force was slow to make a decision on its trainer. It was to have a Lycoming O-540 engine and would be rated for aerobatics. However, it generated little public interest. The TLS continued production through 1995, and the MSE continued, too, until it was replaced by the M20R Ovation in 1994. Once again, Mooney was offering two models: one offering high speed (the TLS) and the other offering high efficiency. The M20T Predator, a canopy-equipped version of the basic M20 design powered by a Lycoming AEIO-540 engine, was Mooney's entrant in the USAF Enhanced Flight Screener competition. The prototype, built in 1991, displayed in a tiger-stripe paint scheme. The sole prototype, registered N20XT, was flown in the Experimental – Market Survey category and was still owned by Mooney Aircraft in 2013, although its registration had expired November 30, 2013. The competition for the Enhanced Flight Screener program was finally held in 1992, and the Slingsby T67 Firefly was chosen instead of the Mooney EFS. Sales continued to drop, only reaching 64 units in 1993. The San Antonio location was sold and all operations returned to Kerrville. Development of the M20 continued, however, and the M20R Ovation was released in 1994. It was designed to fill a