According to the Flightradar24 tracking of RA-73051, the flight test MC-21-300 has been busy. On September 13 Irkut announced that it started the second stage of flight testing. During preparation to the second stage tensometric (strain-measuring) sensors were installed to measure stress and some software bugs were fixed.
The aircraft has flown several times recently. Because of the poor coverage in Irkutsk, the activity only shows up on ADS-B well into the flight. (The same thing applies to the E2 program tests). It would be great if the Irkutsk and Araraquara airports got FR24 receivers (hint).
- September 22 – 4 Hours 3 minutes
- September 23 – 5 hours 1 minute
- September 24 – 4 hours 21 minutes
- September 26 – 2 hours 50 minutes There some steep climbs a few speed dashes. IRKUT also notified that thrust reversers were checked. The aircraft is getting ready to relocate to the Zhukovsky test base for certification. This move could come some time in October. There is appears to be growing confidence in the aircraft.