What would be this red decal in the side of the S-24?

[Biggus_Dikus]

Was wondering what means this decal in the side of the cockpit, but couldnt find it anywhere (Think Im a bad searcher lol)

The logo just below the the pilot window → Ref image:

Thanks in advance!

[da12thmonkey]

It’s Sukhoi’s old logo

[Biggus_Dikus]

I can finally sleep!

Thanks you sire.