Winnebago Industries Inc. reported its net income basically doubled during its fourth fiscal quarter, which ended Aug. 25.

The motorhome manufacturer’s earnings increased 96% to $15.5 million during the June-through-August period.

Winnebago’s sales revenue also climbed 8% during its fourth fiscal quarter to $178.1 million.

“We are encouraged by the continued reduction in interest rates and the acceptance of our new products,” said Bruce Hertzke, chairman, president and CEO. “However, the economic environment since the Sept. 11 tragedy leads us to be cautious about the next couple of quarters.”

For the year ended Aug. 25, Winnebago’s earnings declined 12% to $42.7 million and its sales revenue slipped 9.5% to $681.8 million.

Winnebago shipped 5,666 Class A motorhomes to its dealers during the year ended Aug. 25, which was a 17% reduction from the 6,819 Class A’s it shipped to its dealers during its fiscal year 2000.

Winnebago’s diesel Class A motorhome shipments also were down 7% to 1,367 units during its fiscal year 2001.

Additionally, Winnebago’s Class C motorhome deliveries were lowered 8% to 3,410 units and shipments of its EuroVan Camper Class B motorhome were reduced 18% to 703 units during the year ended Aug. 25.