I know, Sumburgh is not an airport meant to receive the Antonov 225, even less with the Russian space shuttle Buran as cargo. In fact, this aircraft and Sumburgh exclude each other mutually. But if you want to try an almost impossible virtual flight , now is the opportunity.
You must forget about the weight of the aircraft on the runway, the limited space to taxy and park, and the required distance for an eventual take-off. It is probable that once in Sumburgh, this aircraft will stay there forever.
It is interesting, though, to remember the exceptional performances of the Antonov 225. While flying over the Bourget for a demonstration, it was able to maintain a 45 degree turn with the 62 tons Russian shuttle mounted on top.
The approach can be made at a surprisingly slow speed for an aircraft of that weight and the breaking performance is known to be excellent. In Sumburgh, you have the choice between two runways (4700 to 4900 feet). Forget about a safe final approach, you must fly it like a daredevil. It is possible to download the Antonov 225 and the shuttle for free. As for the Sumburgh airport, it is a creation of ORBX and is available for a very reasonable fee.
For other flights of that type, head to the “unhinged virtual flights” of my web site.