The first deliveries of Russia's long delayed Superjet 100 aircraft will be delayed by another month until December, a senior official from Russian state plane maker Sukhoi was quoted as saying on Wednesday.

Sukhoi said national carrier Aeroflot would receive its first Superjet aircraft in December.

"We plan to deliver the first aircraft in December," Viktor Subbotin, head of Sukhoi Civil Aircraft, was quoted as saying by state RIA news agency.

Aeroflot said it had been promised deliveries would take place in November 2009, already a delay to initial forecasts of first deliveries at the end of 2008.

The Superjet aircraft is Russia's first new passenger plane since the 1991 fall of the Soviet Union and has been pitched by officials as the new hope for Russia's languishing aircraft manufacturers.

A regional jet that can carry between 75 and 95 passengers, the aircraft made its maiden flight -- initially planned for 2007 -- in May 2008 and is still undergoing tests.

Designed to replace older Tupolev-134 and Yakovlev-42 planes on routes between Russia's regional cities, it is a joint creation of the civil aviation unit of Russia's state aviation corporation and US plane maker Boeing.

Aeroflot has said it would fill the temporary gap in its fleet by signing short-term leases on other planes until its Superjets are delivered.