"Big Wind"—A fire engine made by mounting two MiG-21 jet engines onto a Soviet T-34 tank chassis to blow out Kuwaiti oil fires like a candle
(thelemmy.club)
Two big fat jets of 750mph wind and an insane 220 gallons a second of water mixed into the air stream, according to the article.
Tanks are also very heavy.
I somewhat question the 220gpm per second figure. That seems maybe too high. You know those big streams of water you see coming from ladder trucks for building fires? It would take the equivalent of 12 or 13 of those to flow that much water. It's just a whole fucking lot of water. Fill a swimming pool in 1 minute.