Conversion. Merry-go-round plant. In times of peace, this horizontal bulldozer was used to fashion parts for merry-go-rounds to lighten the hearts of carefree children. The drill press has now been converted so that it can perform a face milling operation on landing gear cases for Airacobras. Mathew Kipa, expert machinist, uses a depth micrometer to check the accuracy of his work. Spillman Engineering Company, North Tonawanda, New York