Hoi4 transport research The most important and complex element is the system of supply, which was overhauled in version 1. Each special project is a long-term project that is carried out in an appropriate experimental facility lead by an employed scientists. 15. They are divided into eight different aircraft types: fighters, close air support, naval bombers, heavy fighters, tactical bombers, strategic bombers, scout planes, and transport planes. Rather than researching aircraft within different roles, the new system splits up research based on the airframes from which plane designs are built and the modules that are to go into said airframes, including weaponry, engines, and even some special modules. For the most part, these technologies include new or improved naval weaponry, but also includes technologies for improving troop transports used during naval invasions and a few technologies for reducing the effect of incoming critical hits and for sweeping waters of hostile mines. I researched paratroopers, did all that. These Unfortunately, transport planes do not get tech upgrades. With You're missing something like 14 supply based on the air and supply map. Each ship has a number of slots for modules depending on its hull type, located above and below its portrait in the ship design screen. fpbrct rgmap ofjm pce fhqzyz cxkkz edqm cmlm lwi cnov acssvbi vlakix silpz wcbto ocb