MANILA, Philippines—The Philippines signed a 32 billion-peso ($624 million) deal Tuesday to purchase 32 Black Hawk helicopters in the largest military aircraft acquisition contract under outgoing President Rodrigo Duterte, defense officials said. Defense Secretary Delfin Lorenzana signed the deal with Janusz Zakrecki, president of Poland-based aerospace manufacturer PZL Mielec, to acquire the S-70i Black Hawks, which can be used for troop transport, combat operations, and disaster response. The deal includes a training package for pilots and maintenance crews and logistical backup, Department of National Defense spokesperson Arsenio Andolong said. Lorenzana said it took time for the Department of Budget to allocate funds for the deal, which was signed by Duterte, and he was concerned because the president’s six-year term ends on June 30. “We barely made it,” Lorenzana said. “I think we will not be here anymore to receive these helicopters, but nonetheless, we will be happy to see the …