Kingsley Coach Inc., manufacturer of high-end motorhomes on heavy-duty truck chassis, reported its losses narrowed during the six-month period that ended June 30.

The Middleburg, Pa.-based firm lost $581,000 during the first half of this year, compared with $478,000 lost during the first half of 1999.

However, the firm’s sale revenue increased 95% during the first half of this year to $1.1 million.

The loss was anticipated because of design and development expenses, said Terry Watkins, CEO.