Hi Nick

The main reason for the "twin receivers" in the big planes was the major current draw due to all the digital servos. 6 aileron servos, 4 rudder servos, 4 elevator servos all digital. It then made sense to do a redundant receiver setup. In the jets we are probably getting there with the bigger jets. Believe me that if you get "lockout" on one receiver, you will get it on both receivers as well. Powerbox and Emcotec and some others make boxes to handle the higher current required by the number of servos used in these big planes. And now the argument begins about - one more thing to go wrong!

My 2c worth!

Regards

Zane