Airbus’ backlog got a boost last month when an unnamed customer ordered 52 of its single-aisle A320 jets.

The request lifts Airbus’ net order tally to 194 through the first 11 months of 2009, the company said Thursday. The European jet maker leads rival Boeing in net orders this year. Boeing, which updates its orders Web site weekly, lists 93 net orders through Dec. 1.

Boeing won an order for two 737s in the last week from an unidentified customer.

Airbus has delivered 437 aircraft through the end of November. Boeing has delivered 430 jets this year.