The Defence Ministry has again invited a single-round open tender for the sale of 24 decommissioned Mig-29 fighter planes, daily Népszabadság said on Friday. The deadline for submitting bids for 18 Mig-29B and six Mig-29UB aircraft, as well as 21 RD-33 replacement engines is June 14. A minimum purchase price has not been specified in the tender but, if successful, it is expected to yield HUF 9.8 billion, the paper said. An earlier tender for the sale of eight Mig-29 aircraft produced eight bids, but none were valid. The Hungarian Air Force got 28 MiG-29s from Russia in 1993, as a partial repayment of government debt. The MiG-29s have been phased out and replaced with Swedish-made Gripens.