Redundancy in electronics
 

Hello,


To what extend is redundant electronic systems used in Giant Scale RC Aircraft?


Is it common (or necessary) to have redundant receivers? Batteries? Servos?


I would like to learn more about this if anyone is willing to share.


Thanks,

Wings

RE: Redundancy in electronics
 

Hi,

This being a hobby, there are all sorts of strong opinions.

I personally use dual switches and dual batteries with a single rx on any rc plane under $500 in value.

Planes valued from $500 - $15,000 are equipped with dual rxs and dual batteries. Others will swear that a single rx and single battery is good to go, no matter the size of the airplane or value.

While careful installation and maintenance reduces the failure rate of equipment, the use of dual systems (dual rxs with individual batteries), each controlling 50% of the airplane insulate the plane from any failure other than RF interference.

Elson

RE: Redundancy in electronics
 

It's hard to fathom people exchanging strong opinions on RCU! lol :)

Thanks for your response!

RE: Redundancy in electronics
 

personally i use duel batterys and switches and one receiver in all my giant scale planes, 120 size and smaller 1 battery, switch, and receiver. but it is to each his own.

RE: Redundancy in electronics
 

ill throw in my 2 cents here... I have 2 giant scale planes a 40% Staudacher and 50% Pitts special which both planes have 2 li-ion 4800mah batts for one receiver feeding into a regulator then into a smart fly power expander with one switch. have had both set ups for at least 2 years now and countless flights on the staudacher and no problems what so ever... thats just one way of doing it. I love the way they are both set up and would not do it any different!

on my ailerons on the staudacher i do have 2 5955 servos on each wing half and 2 5745 servos on the rudder. no problems what so ever and they do great!
so i guess if you are asking about redundancy, the only major place i have that is with my battery packs and servos.

RE: Redundancy in electronics
 

just got a carden yak how do you set up dual switches and batteries? will be using a futaba 8 ch rec and a 9c radio, with one is supplying power or both, witch one to turn on first or off or does it matter thanks frank

RE: Redundancy in electronics
 

hi iv got a 50% taylor craft set up with two complete systems. one receiver operates right ail and left elev the other receiver operates left ail right elv ,rud and throtel very simple not much to go wrong.
i did have a receiver failer on the maiden flight, i was able to land off field without damage with only one ail and half the elv ,
set up is important eng and rud nead to be on the same receiver then right and left on ail and elv. dont use a power exspander as this becomes the weak link

RE: Redundancy in electronics
 

hi

RE: Redundancy in electronics
 

this is an aproved setup for aircraft over 55 lbs, and it works

RE: Redundancy in electronics
 

when you have up to $4000 in an airplane as I do in my 42%weeks solution, two recievers two switches and two batterys is cheap insurance. I figure with my JR 2.4 equiptment it cost me maybe $150 for those 3 items