Fair enough... none of what you listed would need redundancy ('cpet maybe the turbine)
I saw the Aeroworks name and forgot that they made this smaller model....
I am in complete agreement..for a 60 to 90 size there is absolutley no need for 2 batteries........
just put a good 1450mAh or larger 5 cell pack and go fly.....
ORIGINAL: j.duncker
In response to Exeter acres.
I do not fly giant scale but I do fly a wide variety of models from ultra light indoor stuff, through 12th scale combat, club 2000 pylon racers, 3D profiles, 1/4 scale bipes and a high speed Gas Turbine scale model.
I fly a lot, my own models, other peoples on buddy box set ups [ I am an instructor at my local club] and am often asked to test fly models after checking them over.
I am an old fart who has been flying RC since the days you built your own RC equipement.
I agree with you if it was something like a 15 foot span B17 then it makes sense to use 2 RXs with separate batteries and drive multiple surfaces with sufficient redundancy to get the model back on the ground if one system fails.
However the original post relates to An Edge 540
SPECIFICATIONS
Wing Span 60"
Wing Area 693 Sq. In.
Length 55"
Weight 5.5 to 6 pounds
Engine .46 to .61 Glow
Radio 4 Channels minimum
If this was mine I would use a single battery single switch set up. I fly Futaba and would be happy using an unregulated 5 cell 6volt NiMh pack of 1800 mah capacity and would expect to use substantially less than 200 mah per flight in the above model even with an all digital set up.