ORIGINAL: djensen623
a because there is one less connection to potentially fail, a marginally small amount of weight savings, and just because I like the fact that I can adjust each servo separately.
Not to knock dual aileron channels, actually it's the other way around.
Having a "Y" connector installed reduces complexity and a potential failure point.
It is far more common to accidentally change a setting on the TX that will completely throw off the plane's handling in a dual channel setup.
Also if one channel goes on the RX, they all go.
As you'll see advised time and again here, it is important to NOT rely upon the radio to get your linkages set up correctly.
Better to set things up with your "Y" adapter if possible.
On most TX's the signals for each of the channels is sent out in a serial manner.
So your right aileron will get it's position signal first, then, the elevator, throttle, rudder and left aileron.
That causes a noticible delay in surface movement, particularly on larger surface, as you bounce from one extreme to another.
Some TX's try to work around this by resequencing linked channels (e.g. what Spektrum calls "Servo Sync" ), but that underscores yet another small problem that comes into play.
As I said I'm not knocking dual or multichannel use for various surfaces or channels, but to call a "Y" adapter "more complicated" or introducing more failure points is a bit disingenuous.