What aerodynamic data exists for the Yak-130?
The Yak-130 has a maximum g-loading of +8g to -3g and is capable of executing the flight manoeuvres specific to current operational and developmental combat aircraft, including Su-30, MiG-29, Mirage, F-15, F-16, Eurofighter, F-22 and F-35. This aircraft is of classical swept-wing and empennage monoplane design and light alloy construction with carbon-fibre control surfaces. Kevlar armour protection is fitted to the engines, cockpit and avionics compartment.
Flight angles of attack &lt; 40°.
Speeds:
– level flight, maximum   1 050 km/h
– takeoff (full fuel load)    200 km/h
– landing 195 km/h

Side lift and flight envelope is kind of hard to come by, but I got this information from https://thaimilitaryandasianregion.wordpress.com/2015/10/25/yakovlev-yak-130/.
I would also recommend http://www.airforce-technology.com/projects/yak_130/ as another source to look through. Hopefully I was of any help to you in writing your essay.