Super-Sonic Transports has always been on the to-do list of HKAS engineers. When fuel prices were low the management board gave the greenlight for the "112" project. 112 was supposed to be an airliner that can cruise above Mach 2 and carry 40 passengers with comfort and luxury. The Engineers gave it a large delta wing and 4 high power jet engine to make sure that 112 would reach and stay super sonic.

However when 112 was beginning test flight, the oil price spiked due to oil companies collectively driving prices up, which suddenly made fuel hungry SSTs fell out of favor for airlines. Management stop what the engineers were doing after that and gave them a new task of making 112 more efficient. Realizing their ultimate wet dream has just been foiled by oil companies, the whole Engineering department of HKAS worked to make sure that the 112 uses as little fuel as possible. Aerodynamics of the air frame is further improved while the 4 engines was replaced with a single high bypass turbo fan. The aircraft now carries 60 passengers and uses less fuel then other regional airliners.

The HK 112 achieves a decent sales figure and routinely flies long range low demand routes. Some have converted in to large business jets.