I vaguely recollect reading many years ago, in a bound volume of Meccano Magazine another land-clearance method tried in Australia.
It consisted of a massive steel ball, some 8 or 10 feet diameter I think, and probably hollow but still weighing a few tons, towed via a bridle by two caterpillar-tractors moving parallel though the bush. Presumably two tracks would be cleared first, then the cables and ball used for pulling down and crushing the intervening woods.
I don't know how successful or widespread this was – has anyone else encountered it?
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BTW I gather the (45ft?) paddle-steamer 'Monarch', presently used for pleasure-trips on the lower R. Frome in Dorset, is up for sale. Her oil-fired boiler feeds a twin-cylinder, simple-expansion, diagonal engine. The two pleasure-trip boats there – Monarch and a small diesel launch – have started cruises again with appropriate limits etc. on passenger numbers, but whether the latest pandemic-rules changes will send any such vessels back to their moorings, I cannot say.