After the end of World War II, negotiations were held to acquire modern fighter aircraft, both jet and propeller-driven. Of the propeller-driven aircraft, there was great interest in the Spitfire MK.XVI and Tempest Mk.V. The negotiations were successful and ten aircraft were promised to be delivered. The coup in February 1948 ruined everything, but the first three aircraft had been delivered before that. Assembly and repairs were carried out by Avia Letňany, where a refit was also carried out in the early seventies. The last two aircraft served with the SNB highway patrol, then were stored. In 1989, they were reactivated and used against demonstrations. For the first time on 21.8.1989, and then on 17.11.1989, they patrolled Národní třída. One aircraft is currently on display in the Technical Museum in Brno.
Alternative engine for L410 was developed by Department of airplane engines. It lost the competition in favor to Motorlet engine and one example is on display at Technical Museum Brno