PDA Engineering, a Costa Mesa computer software company, named John E. McDonald, president, to the new post of chairman Monday. McDonald will remain chief executive officer.
New arrival Louis A. Delmonico moved up from executive vice president to replace McDonald as president. Delmonico was also named chief operating officer. The company said he will direct PDA's day-to-day operations while McDonald concentrates on long-term strategy.
The company licenses software used by engineers to design new products. It also does engineering consulting.
Delmonico joined the company in May, shortly before it announced disappointing earnings for its 1987 fiscal year. PDA profits peaked in 1985 at $1.6 million, then fell to $1.4 million in 1986 and to $320,000 during the latest fiscal year, which ended June 30.
PDA blamed this year's slump on a $1.5-million reserve the company had to set aside to pay the lease on its old corporate headquarters in Irvine. PDA moved to new headquarters in Costa Mesa this year, before the lease on the old building had expired. The $1.5 million would otherwise have been counted as profit this year.