The cooling off of the RV market in April and May did not impact Winnebago Industries Inc., the company reported today.

Winnebago’s earnings increased 11% and its sales revenue was up 10% during the three-month period ended May 27. Specifically, the company earned $16.3 million on sales of $211.1 million during the March-through-May period.

During the first nine months of Winnebago’s fiscal 2000, which also ended May 27, the company’s earnings increased 18% to $40.5 million. Its sales were a record $580.8 million, a 15% increase over the figure for the first nine months of its fiscal 1999.

Retail sales of Winnebago motorhomes during the March-through-May period outpaced the industry and the rate of sales that Winnebago experienced a year earlier, according to Bruce Hertzke, chairman, CEO and president. “The inventory of Winnebago units on our dealers lots are at normal levels for this time of year,” he added.

“While Winnebago Industries’ retail sales have been strong to date, slowing sales industrywide, along with added competitive pressures may make the next quarter or two more challenging for us,” Hertzke added.