skyarrow1

I have a TF Cessna 310 and with all the servos, I will either need 8-9 channel receiver or use y-harnesses for the throttle, flaps and ailerons.

Which way is better... just getting into giant scale, so I am not sure.

Mike

foodstick

I have Y harnessed a lot of large NON 3D planes and never had a problem. In fact I am not sure if I have ever in 25 years put the second aileron on a second channel. It should be fine on a 310 I would think ?

karolh

I have used both setups in my models and have never had a problem with either of them.

Boomerang1

It depends on what you would like to achieve & whether your transmitter is sophisticated or not.

Like the other guys said the Y leads will work fine but, if your transmitter has the smarts, the seperate
servos will give you flexibility. You could:

Have the two throttles on individual channels so you could control them individually for starting & then
mix them together for flight.

Use the ailerons drooped for use as additional flaps, usually with less travel then the actual flaps.

Move both ailerons up with flaps down for crow braking for better speed control on the landing approach.

Set the aileron throws individually to match the angle of them more easily.

Mix throttles with rudder for better ground handling.

It's entirely up to you. - John.

skyarrow1

Thanks for all of the great ideas... I just wanted to make sure it was safe more than anything. I have a Spectrum 6i, so not a lot of mixing is available, but I am looking to get an 8i soon.

Mike

hrrcflyer

Mike,

I have never had any problems with y-harnesses in the past, but reversing y's are another story all together. I've had reversing y's change travel amount with changes in temperature on a given day and I've also had servo response times change during the course of a day as well. Since then I've bought a Futaba 12Z and I haven't used a y-harness since.

Good luck with your 310, it's a nice plane.

Take care,
David

carlgrover

I've had problems with Y harnesses and was told (by Radio South) that it depends on the radio you are using. The newer radios are better off not using them.

BarracudaHockey

My Feedback: (11)

On Spektrum 2.4 a Y-harness is fine, I do it all the time.

Amplified or reversing Y's cause issues, don't use them.

skyarrow1

I am using a Spectrum 2.4 radio...

Thanks for the input.

Mike

ROGER RUSSELL

My Feedback: (12)

http://www.spektrumrc.com/experience...practices.aspx

Saw this elesewhere.

Might help to read!

pettit

My Feedback: (23)

If you have the soldering skills, I would Y the two servo leads together permanently, unless they have to be disconnected at some time.

This eliminates a number of servo plug and socket connections that could go bad over time.

Be sure to use shrink tube on the solder joints too.

vertical grimmace

My Feedback: (1)

One of the issues not using a Y harness, is having enough ports in your RX. If you have 2 elevator servos, 2 aileron servos, a throttle kill, retracts etc, you run out of ports quick. Mainly because of this I use Y's most of the time.
Planning the servo install will allow you to never need a reversing lead.

stevenmax50

My Feedback: (1)

I solved this problem with my 7ch futaba by using a power expander.  It gave me the option of plugging in up to 3 servos per channel, regulated power to the reciever and servos, and an optical kill switch.  Costs 200 bucks.  But I think it was worth it.  That being said, I have also never had a problem with a Y harness.  I mainly bought the power expander for the power regulator and kill switch.