Zohan , the problem is not that it wouldn't be possible . The problem is there just weren't very many VIb's around . Think of the biggets beach you ever say and 10 grains of sand are painted pink . The majority are T-34's and Shermans , the pink are Pzkw VIb's . Notice the responses to my posts . Make your statements clear about what you believe ,and what you know . I would have stated it is easily possible that a King Tiger could be flipped and they can't say anything . Ok I watched the IED several times . My bet is it wasn't even the = of 10 82 mm mortar rounds , it wasn't more than 4 feet deep . That tells me this , the 500 pounder will flip any tank ever made period . I will bet 2 months subscription on that . Second bet is , and I am looking for a way to get the AAR on this , the IED event that bounced the M-1 wasn't more than the equivalent of 20 82 mm MB's 10 feet deep . That one I am so sure of I will bet a years subscription on it . I gave myself a whole ton of safety margin on that too . Any takers from the 500 lbs won't flip a Tiger II crowd ? Estimate it was like 3 122 mm arty rounds 3 feet deep . Thats somewhere around 100 lbs . Thats my best estimate on the IED .