The same maths I posted in my previous comment. Just look at the B-2. It has 4 7.7-ton thrust engines and a MTOW of 170 tons. Even the WS-10A has a 14-ton thrust with afterburner. If we go pessimistic for dry thrust and take 60% of the wet thrust, we still end up with 8.4 tons. I will be surprised if the H-20 comes with a MTOW of less than 190 tons because even the WS-10A allows it. If the old news about WS-10 variants with 15.5-ton were true, then up to 210 tons are possible.And this bolt statement is based on what??