I've been thinking about whether there's any merit to sticking EDF units in ramjet configuration... One of the issues with a lot of EDFs is that the motor is fast, but sacrifices significant torque to achieve its thrust, making the motor run at low efficiency and consequently produces excessive heat. If two EDF units are mounted end to end, would they be more efficient?
In my mind, the output from the front one would act like a supercharger, giving the rear EDF higher efficiency at low speed. As long as there's enough airflow around/through the front EDF, it shouldn't affect the rear EDF's airflow.
What do you think? Am I nuts?
In my mind, the output from the front one would act like a supercharger, giving the rear EDF higher efficiency at low speed. As long as there's enough airflow around/through the front EDF, it shouldn't affect the rear EDF's airflow.
What do you think? Am I nuts?