Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
Unless you have very complex driveshaft paths, mechanical transmissions can be made with high efficiency (say 98-99% per geartrain) and reasonable weight, whereas with an electric power distribution you have the weight and efficiencies of:- a generator (efficiency no more than 98%)- inverter (dunno, maybe mid nineties)- cabling (losses in heat)- electric motor (efficiency around 95%)you end up with a powertrain efficiency of 86-87% and possibly more weight.In the case of a tail rotor replacement, there may be advantages found in redundancy that make up for the added weight and power requirements.
Unless you have very complex driveshaft paths, mechanical transmissions can be made with high efficiency (say 98-99% per geartrain) and reasonable weight, whereas with an electric power distribution you have the weight and efficiencies of:
- a generator (efficiency no more than 98%)
- inverter (dunno, maybe mid nineties)
- cabling (losses in heat)
- electric motor (efficiency around 95%)
you end up with a powertrain efficiency of 86-87% and possibly more weight.
In the case of a tail rotor replacement, there may be advantages found in redundancy that make up for the added weight and power requirements.
