Airliner A37

This is a medium-range, narrow-body passenger jet airliner with a single-aisle cabin, designed primarily for scheduled flights between cities and airports. Its design features a pressurized aluminum-composite fuselage, swept wings with wingtips, an empennage, retractable tricycle landing gear, and two under-wing turbofan engines. The aircraft's engine utilizes a gearbox positioned between the fan and the low-pressure turbine. The aircraft measures 37 m in length, has a wingspan of 35.50 m and a height of 11.75 m, and reaches a maximum takeoff weight of 79 tonnes. A two-class configuration accommodates 180 passengers. The fuselage interior houses the passenger cabin, flight deck, forward and aft galleys, lavatory modules, and under-floor cargo compartments. The passenger cabin is 3.7 m wide and is equipped with seats arranged in a 3+3 layout, overhead bins, individual service panels, and emergency exits. The passenger compartment volume is approximately 139 m³, while the total pressurized fuselage volume is around 330 m³. Fuel is stored primarily in integral wing tanks with a capacity of 23,750 liters. During engine operation, air enters the intake, the fan generates the primary thrust flow, and compressors compress the air for delivery to the combustion chambers; following fuel combustion, the expanding gas passes through the turbines and the nozzle, generating jet thrust. The landing gear bears loads during taxiing, takeoff, and landing, while wing high-lift devices modify aerodynamic characteristics at low speeds.