For the countries of the world, the technology of jet engines is no longer something incomprehensible. At least in principle, many engineering technicians have already approached the threshold of jet engine technology.
However, it remains a very complex technology, with manufacturing and materials constraints affecting almost every country attempting to develop its own engines.
The Great Tang Empire can export corresponding technology to some friendly countries, but these technologies are obviously somewhat outdated, capable of producing only engines that the Great Tang Empire exports.
Even so, the engines that the Great Tang Empire agrees to export are still advanced, at least to those countries.
Using these imported equipment, materials... the Poplar Empire assembled and produced its first Elf jet fighter: the F-104 Fighter Jet.
