Ten aircraft are involved in today's search for Malaysia Airlines flight MH370.

Two Chinese military aircraft departed about 8.45am and 9.20am respectively.

A RAAF P3 Orion departed for the search area just after 9am.

Two ultra-long range civil jets departed about 10.10am and 10.30am respectively.

A second RAAF P3 Orion is scheduled to depart about 11am. A third ultra-long range jet is scheduled to depart about midday.

A US Navy P8 Poseidon aircraft is scheduled to depart about 1pm.

The two Japanese P3 Orion aircraft are scheduled to depart after 4pm.

All times are expressed in Australian Eastern Daylight Savings Time.