The new generation the most amazing construction machinery showing more flexible more grip go elevaved more mobility. The mudmaster isn't a copy of soviet tech. Henry ford invented that back in 1920's for his model "T"s and tractors. Could you not use the 620 haul road sweeper for airport application? Sweeping for run way clearance of snow, whilst putting down ISOMEX runway de-icer? Electric equipment? Really? Do you think the 4 to maybe 6 hours of work is going to pay for the cost to recharge it, let alone pay wages? I don’t think so, if it ain’t moving it ain’t making money.