Drones need low-medium power high bypass turbofans not low bypass engines for maximum efficiency.With the J-35 entering service I think the issue of lack of medium power turbofan for drones should be solved.
Drones need low-medium power high bypass turbofans not low bypass engines for maximum efficiency.With the J-35 entering service I think the issue of lack of medium power turbofan for drones should be solved.
Technically speaking anything more than 5 can be considered "High BPR" but IMO definition is sorta of murky. AE3007 used by the RQ-4 is a bizjet engine with a BPR of exactly 5. Your right that smaller drones usually use medium bypass engines with 2-4 BPR.Definitively not high bypass. Maybe more bypass than military jets, something more like a business jet.