The amish around here have several aircooled listers. The smaller ones without a load (they use a 3 or 4 horse to run home made ice cream freezers at their auctions, so not much of a load, just put along) are not that bad as far as noise but still louder than a cs. The fellow that I deal with has a 2 cylinder of about 20~hp running two air compressor and a hydraulic pump and it is ear splitting loud, I am sure the compressors however add to the din but even when they cut out it is loud. They use air motors/hydraulic motors to run all their machine tools because they cant use electricity. They have been using it about 10 years 6 days a week 5-7 hours a day with no problems but they are getting loose and hard to start now.
