The Ayres LM200 Loadmaster was a small cargo aircraft developed in the 1990s by Ayres Corp. largely for the needs of small-package carriers. In 1996, urged on by Federal Express, development was begun, designed to carry four demi containers. The aircraft was to be powered by a LHTEC CTP800-4T turboprop, which was composed of two CTP800s driving a single five-bladed Hamilton-Standard propeller through a combining gearbox.