Evgeniy Evseev

ANALYSIS OF THE DESIGN AND OPERATING CHARACTERISTICS OF THE SIGMATIC PS WIDE‑WIDTH IRRIGATION MACHINE WITH A SWIVEL PIVOT SHAFT

Based on the technical description, factory operating manuals, and archival materials of the VHJ Sigma Olomouc concern (now Sigma Group a.s.), the article provides a comprehensive historical and technical analysis of the Sigmatic PS wide‑area circular sprinkler machine with a swi...