[quote:ORIGINAL:mranga]
Would it make a lot of sense to attach an external capacitor (I think I've seen something like this advertised on HobbyKing) to deal with such spikes in current draw?
The capacitors you see advertised are for land RC. It would do little more than add additional load to the circuit. It is designed to remove "electrical noise" from the power leads usually caused by electric motors and has been proven and admitted to by many, including JR, to be of no help in a brownout condition. Simply not enough capacity. Don't waste you money.
[/quote]
Thanks for replying. Perhaps it does not help. Two quick questions:
1. How does land RCdiffer qualitativel from the types of radios and receivers used for "air RC"?
2. Why would adding a capacitor to the receiver bus overload the circuit? (Does it really consume much power to charge that capacitor?)
Again, not doubting what you say but just trying to understand.
Thanks