Yak-40 Cruise Speed

[Vostok]

Its stated on here to only have 275 knts cruise speed but several sources say closer to 300knts.

http://www.airliners.net/aircraft-data/stats.main?id=386
http://en.wikipedia.org/wiki/Yakovlev_Yak-40

Also janes all the worlds aircraft. says around 295knts

[Sami]

Max cruising speed (295kt) is not the standard cruising speed.

https://www.airwaysim.com/forum/index.php/topic,41739.0.html