Hawker Beechcraft has delivered the first four of 15 Beechcraft T-6A military trainers scheduled to go to the Iraqi air force under the terms of a pair of contracts signed last August and September, the company announced here yesterday. Plans call for the air force to take delivery of the rest of the aircraft in the first and fourth quarters of this year.

Along with the 15 airplanes, the contract includes ground-based training systems, spares, contract logistics support, maintenance, post-production support and technical publications. Some 20 countries have used the T-6 to train its military pilots, and the aircraft recently reached one million flight hours.