Back in September my family got together and purchased me a Park Zone Sukhoi SU-29MM.
An incredible plane for someone who is interested in learning to fly 3D aerobatics.
Have a listen the the Flite Test After Hours Podcast where Chris and friends discuss the plane.
I was very excited to fly the Sukhoi but there was 1 problem. I do not own a Spektrum radio.
Normally this would be a game stopper but I fly with a Turnigy 9X 9Ch Transmitter which can accept JR style transmitter modules.
Rather then get a whole new radio I was able to purchased a OrangeRX DSMX/DSM2 Compatible 2.4Ghz Transmitter Module (JR/Turnigy compatible). Note Swapping the module does require some changes to the stock antenna setup.
Setting Up The Radio
On my maiden flight I'd actually inverted the flight mode selection and panic mode channel settings.
This caused the plane to be stuck in 3D mode meaning I had to fly a little slow to avoid damaging the control surfaces.
After some careful reading and testing I was able to figure out which channel to assign the 3 way switch and what value to set each mode with.
Channel 5 is for the 3 way switch. This controls the 3 flight modes.
Stagility Mode: Position 0 has a value of 85/Full on ID0.
3D Mode: Position 1 has a value of 100/Half on ID1.
Precision Mode: Position 2 has a value of 0/Full on ID2.
If you are running a similar setup I would be curious to know if your values are like mine.
I would have expect 0,50 & 100 to work but clearly not.
Panic Recovery Mode: Activated by the timer switch assigned to channel 6 with a value of 71/Full.
Bench Testing The Modes.
In order to engage the AS3X Safe technology you need to run the motor up for a few seconds.
Be Careful! There is a lot of power and it is indeed a large propeller.
Run the motor for a second or two and then lock the throttle control.
You can then safely test all 3 modes on the bench.
Stagility Mode: If you simple tip the plane onto its nose the rudder will respond attempting to correct the plane.
3D & Precision Modes: In 3D mode you will see the biggest throws on the control surfaces this is the key difference between 3D and precision. 3D has large movements while percision is smaller.
While in 3D mode go full lock on the ailerons then switch over to precision mode with low rates.
You will see all the control surfaces will set down to a lower positions and actually respond slower/smoother.
Again tip the nose over or hold the plane on it’s side but this time engage the Panic Mode trigger.
The control surfaces will all react attempting to right the plane.
I followed the manual when setting up my high and low rates.
Remember Spektrum assign channel 1 to the throttle control.
Be mindful of this and remember to move your throttle lock over as well.
There you go. You can enjoy almost any planes which require DSMX/DSM2 with a simple $30 module.
It does take a little work to get the settings sorted but once you’ve figure that out the sky is yours.
Hope you enjoyed this article.