Trak Auto yesterday reported that its profit more than doubled during its third quarter ended Oct. 31, while Trak's corporate cousin, Crown Books, reported a 9 percent rise in net earnings.

Trak, the Landover-based chain of auto supply stores controlled by the Haft family, said it earned $1.1 million (18 cents per share) in the quarter, up from $450,000 (7 cents) a year ago.

Sales rose 14 percent, to $55.7 million from $48.9 million. For the nine months ended Oct. 31, Trak's profit rose more than fourfold, to $3.3 million (54 cents) from $774,000 (13 cents).

Sales increased 16 percent, to $157.1 million from $135.2 million in the nine-month period a year ago.

Crown Books, which also is based in Landover and is run by the Hafts, said it earned $745,000 (14 cents) in the quarter ended Oct. 31, up from $681,000 (13 cents) a year ago. Sales rose 10 percent in the quarter, to $37.6 million from $34.1 million.

For the first nine months, the company reported that it earned $2.56 million (48 cents), off slightly from $2.62 million (39 cents, with more shares outstanding) a year ago. Sales rose 8 percent during the nine months, to $108.1 million from $99.6 million.