The Yak-40 flying laboratory, operated by the Siberian Aeronautical Research Institute (SibNIA) and named after S.A. Chaplygin, successfully completed the first test flight with the VK-800 turboprop engine, developed by JSC “UZGA” (Ural Civil Aviation Plant).
During the experimental flight, the engine’s performance was evaluated under various operating conditions. The aircraft remained airborne for approximately 15 minutes, reaching an altitude of 700 metres and a speed of up to 340 km/h. According to the test engineers, the VK-800 operated stably throughout all stages — taxiing, takeoff, cruising, and landing.
+ Click here to watch the video
“Based on the first flight, the VK-800 demonstrated reliable operation, with all systems functioning normally. A report will be prepared based on the results obtained to proceed with additional testing,” the project engineers stated.
+ MiG-29 Ukrainian jet destroys Russian drone centre with GBU-39 guided bombs
Strategic Development for Regional Aviation
The VK-800 is a new-generation turboprop engine with a standard architecture, featuring a centrifugal compressor, reverse-flow combustion chamber, single-stage compressor turbine, and a two-stage free turbine. Its development is part of Russia’s strategy for technological self-sufficiency in regional aviation. 
The engine is being developed under contract with the Russian Ministry of Industry and Trade to power aircraft such as:
- LMS-901 “Baikal” – multifunctional light aircraft
- UTS-800 – training aircraft
- LMS-192 “Osvey” – Russian-Belarusian regional aircraft
- Re-engining programmes for locally operated L-410s
A published video shows the Yak-40’s pre-flight preparations, test flight segments, and a statement from Honoured Russian test pilot Vladimir Barsuk.
The successful flight marks a significant milestone for the VK-800 programme, which aims to ensure Russia’s independence in light turboprop engine production and modernise the country’s regional aviation sector.
Source and images: SibNIA | Telegram @AviaCT. This content was created with AI assistance and reviewed by the editorial team.
