The Russian aircraft engine PD-8, developed by the United Engine Corporation (ODK), has successfully passed one of the key stages of certification tests – a check for the impact of squally hail.
The tests were conducted on an open stand using specialized equipment. More than three tons of artificial hail with a diameter of about 16 mm were prepared for the tests. Of these, about 2.5 tons were used for system setup and commissioning before the main check.
During the tests, engineers simulated an aircraft entering a powerful hail cloud at different altitudes, speeds, and air temperatures. The engine was tested in several modes – from start-up to acceleration and deceleration.
The key stage took about 30 seconds: during this time, approximately 220 kg of ice particles were released into the engine from a special installation with four barrels. The speed of the "projectiles" reached 240 m/s, which corresponds to real conditions of heavy hail in flight.
Following the tests, the PD-8 maintained stability and continued to operate normally. The results obtained confirm the reliability of the power unit when operating in difficult weather conditions.
The PD-8 is a turbofan engine with a thrust of about 8 tons, designed for short-haul aircraft, including the "Superjet". It is equipped with a modern control system and is designed for operation in a wide range of temperatures and loads.
