TTS-IS (Russian Тяжелый транспортный самолет интегральной схемы (ТТС-ИС), heavy transport aircraft integrated circuit (HTA-IC))[1] is a project by TsAGI for a very large wing-in-ground-effect, lifting-body cargo aircraft with a take-off weight of 1000 tons, a payload of 500 tons, with a flight range of over 6000 km, a cruising speed of 500 km / h.[2][3][4][5] Although the aircraft typically flies at 6 to 12 metres (20 to 39 feet) above water, ice, or ground to reduce drag, it is designed to take off and land at conventional airports, unlike most ground effect vehicles but similar to the Boeing Pelican.
The two cargo areas are separated by an insulated fuel tank stretching the length of the center fuselage, holding cryogenic liquefied natural gas (LNG).
[6] The HCA-LB is nominally powered by a row of four turboprop engines positioned behind the cargo, atop the fuselage in a pusher configuration, although the propulsion method will be investigated with greater detail in the future.
[7] The HCA-LB has a pi-tail empennage, with the twin vertical tails extending from near the back outer corners of the cargo sections.
Outboard of the cargo sections are non-cargo bearing, shorter, thinner swept wings with downward-pointing wingtips.