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Old 08-13-2003 | 01:59 AM
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Aero330LX
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Default Crash90's Q on Dual Rx. Setup

Hi,
Sorry I couldn't answer sooner. I had a few things to do, but have some time now. This is the way My 35% RadioCraft 330LX (the plane in my avatar) is wired up. I have two JR 940S Rx.'s using two Fromeco Reliaswitches going into two Duralite Plus 6v regulators and Dual 3600 Duralite Plus Packs. I split the airplane down the middle lengthwise. One side is on one reciever/battery/reg/switch setup and the other side is on the other. On the left side I hook up the throttle, left elevator, and left aileron. on the other side I hook up the right aileron, right elevator, and both rudders which are tied and plugged into a smart fly Equalizer which has one input that goes into the rudder channel on the right reciever. If the right side is lost the rudder will obviously be lost, but rudder would not be a primary control in an emergency landing situation. If the left side is lost, I lose the throttle. If it's lost at flight speed, it is simply flown out of gas. If idle, it is landed. All one needs to get the airplane down without issue is one good aileron, and one good elevator. There is no aesymetrical yawing or any funky flying tendencies at all with this setup. You may notice a slight decrease is roll rate, and pitch rate, but it not a problem. My airplane is setup very soft and smooth for precision type flying and I had plenty of control authority to make a completely controlled and perfect landing when I lost the side at the meet I talked about in my previous post. It was completely in control and there was no incident or anything dangerous at all. In fact, the landing was very smooth. I flew 20 minutes later after correcting the problem. This is not the only way to do this...in fact I like the powerbox setup much better as it eliminates some potential failure points, and also has the advantage that if you lose something the the other 'side' powers both sides. There is a new powerbox made exclusively for Duralite Plus batteries that is an outstanding piece of equipment. It also has a failsafe switch that is electronic and gives a visual representation with LED's of the status of both power sides. It also has the added advantage of allowing multiple servos on a control surface without the need for using up all the channels and mixes in a radio. Only one input goes into the reciever and all servos are connected to that channel on the powerbox...the ports are amplified so that signal integrity is not lost due to long leads. The unit was used at the last TOC with great success, and many jet modellers rave about this unit. Now that the unit is designed with the new technology Duralite Plus batteries I don't think there is better setup made. I can't imagine having anything safer or higher performance. The dual reciver setup is a good one and I use it in my 35% 330 with peace of mind, but the new powerbox setup has some very distinct advantages that I just can't pass up for my new 40% project this winter. There are many ways to skin a cat so to speak, but this is what I have found to work very well for me, so that is what I recommend to others. I only pass on what I know works well. I know about the powerbox setup because a buddy that I fly with in the same class as me, and at the same club I fly at has one and it works VERY well. None is this stuff is cheap, but neither is an GS Aerobat. I only use the highest quality stuff in my planes. I don't skimp on airborne equipment because I can't afford failures. I work very hard to do well in competition and have faired pretty well. I could not do that if my equipment let me down. Failures for me are season enders. It takes many months of exaustive work to build and setup these planes so they fly correctly. It also takes many hours of flying one to trim it, and get used to them, and that is why I cannot afford failures. I am so glad that the redundancy I put in my plane proved to work when it really counted. You would not believe the amount of work that was put into that airplane. It saved that airplane, and for that I am very grateful. That's what I hope will happen when others have a failure. If I can save just one airplane (hopefully more) by telling what I did and how it worked, then that makes me very happy. I like to see people succeed and not have failures that cause crashes. Everytime I see that broken hearted look on somebody's face it hurts me just as much. Hopefully this will help someone...I really hope it does.

If anyone needs pictures to help them, let me know. I have a digital camera and would be glad to take pictures if this isn't a clear explanation of how the plane is setup.