Queensland has more than doubled its aerial firefighting fleet as it prepares for more high-risk days after an active start to the season.

Eight waterbombing planes and helicopters will be based at regional centres under an 84-day contract with the National Aerial Firefighting Centre.

The state has already responded to more than 1400 bushfires since the season officially began on August 1.

“The aircraft may be called on to protect people and property or used to map fires burning in difficult terrain that firefighters may otherwise be unable to access and monitor,” Queensland Fire and Emergency Services Commissioner Katarina Carroll said.

About 300 crew from the Fire and Rescue Service, Rural Fire Service and State Emergency Service will support the air operations.

The contract is due to finish in December, subject to a review of bushfire conditions and weather outlooks.