Me ol' RAF Computer Dead Reckoning Mk. 4A. and I think the following could be ball park figures:
35000' M0.82 TAS 470 IAS 275
30000' M0.79 TAS 460 IAS 295
20000' M0.66 TAS 405 IAS 310
At about 170kn I've known a chunk of rubber from a B747 tyre burst go forward, bounce off the wing and damage the fan of an engine well forward of the tyre. Or perhaps the bit which left the mark on the wing wasn't the same piece which entered the engine which, I may say, continued to run perfectly (RR RB211).
Since, in real circumstances you'd be doing about 460kn, I think it may be a bit difficult to depict accurately. I'm sure you will be able to edit the speed up a bit
