ANKARA, Turkey — Top aerospace and aviation manufacturers of Turkey and Indonesia have penned a cooperation agreement that industry experts view as a "long-term strategic" deal.

Turkish Aerospace Industries, or TAI, and PT Dirgantara Indonesia (PTDI) signed the framework agreement at a high-profile ceremony July 6 in the Turkish capital, a press release from TAI said.

TAI described the agreement as a strategic "cooperation deal for the development, production and marketing of aerial vehicles." The agreement follows a memorandum of understanding signed by the two companies during the International Defence Industry Fair in Istanbul May 9-12, the company said.

"This agreement will create synergy between the two companies while contributing to the development of aviation cooperation between the two countries," TAI said.

Under the deal, TAI will contribute to the concept development phase of PTDI's 50-seat N245 aircraft. The two companies will also jointly market PTDI's N219 aircraft.

"Not only those," said one senior aerospace industry source. "It seems TAI and PTDI have developed an understanding for a longer-term strategic cooperation that may involve other platforms than the N245 and N219."

A TAI official said on condition of anonymity that the Turkish and Indonesian governments had their full support for the agreement between the two companies.

"The idea, from the governments' point of view, is to create a win-win situation in which both countries' aerospace industries should benefit at a strategic level," the official said.

TAI, Turkey's aerospace powerhouse, produces attack helicopters, drones, trainer aircraft and satellites. It also is developing an indigenous Turkish helicopter with utility purposes. TAI is a partner in the multinational Joint Strike Fighter consortium.