Quick Start 9303

OK lets cut right to the chase. Grab the Bull by the horns. Fish or cut bait. $Hit or get off the Pot. Lets program a 6 servo Sailplane with the 9303!

  1. Charge it.
  2. Hold down the ENT button and turn on the TX. This gets you to the foundation menu for model set up.
  3. Scroll to highlight Model Select and press the scroller. Scroll to choose a open memory location. Choose it by pressing the scroll bar.
  4. Press the LIST button to return back to the main screen and then scroll to the Type Select and choose Sailplane. Press LIST
  5. Scroll to the MDL Name and make up the Models name by scrolling and pushing. Press LIST
  6. Scroll and push the Modulat button and choose correct modulation for your RX. Press LIST
  7. Scroll and push Trim STEP. Set the SPOI to 0 and the rest at 4. Press LIST
  8. Scroll and push DEV Select. Now we finally start making progress!
  9. In DEV Select menu Scroll to SPEED and push. Select L3P. This turns on the Flight modes to the Left 3 position Switch.
  10. Scroll to LAUN. and push. Select BTFL SW. This puts the Launch Flight mode on the top rear Left Switch.
  11. Scroll and push FLAP and select FLAP LEV.
  12. Scroll and push TRIM. Set it to COM. This makes any trim change effect every Flight Mode (FM) This means if the Ailerons need trimming you do it once and all FM's get the same trim. BUT The Elevator trim is FM specific, So any Elevator trim adjustment is only for the FM you are in. This is VERY cool and you want this! Press LIST
  13. Scroll and press Wing Type and choose Dual Flap ACT And /or V-tail ACT if you have a V tail. Press ENT. Now we are done with this menu and need to go to the easy stuff.
  14. Press LIST than press ENT 2X to get to the next screen and Scroll to Butterfly. Press and scroll to SPOI>FLAP and enter 125% on both 0 and 1 positions. This puts the flap control from the slider to the SPOI (JR talk for Flap Stick). In this screen you also set elevator comp and Crow for landing. Scroll to SPOI>ELEV and put 20% in both 0 and 1 positions. At this point the values are only for starters you will need to come back here for adjustments. But now you know where to find it.
  15. Set the SPOI Offset to +170.
  16. If you want to make a Switch to turn on and off the CROW function then choose a Switch in the SW SLECT tab. You can use the RUD sw (we are using the BTFL for launch already remember!) Press LIST
  17. Scroll to the Flap Rate and push. Now here is where we set what FM the left camber slider is active, I use the slider only in the Cruise FM, the others are PRE SETS and don't need in flight tuning. Add a value of +30 to the Down column in the Cruse row. Press LIST
  18. Scroll to Flaprn MX and push. A lot of stuff happens here. This is where you decide how the slider operates and where you set the camber values for Camber and for Snap Flap and Elevator compensation for camber.
  19. Scroll to Cruise row in the FPRN Down Column and put in a value of +25. Scroll to the ELEV DOWN column and put in a value of -15 to start. Remember this because you will come back here to fine tune at the field. Values in the FPRN column moves the TE with the slider, Values in the ELEV column is for Elevator compensation when you add camber by moving the slider.
  20. Last thing in this screen, if you like the camber slider in the middle position for a neutral TE leave the FLAP LEV offset to 0. If you like the slider for neutral TE with it all toward you set the offset to +150. Press LIST
  21. Now PUSH toward the top of the TX the little FLAP trimmer (Located on the left side of the big JR logo above the Flap Stick.) To a value of 220 This will offset the flap servos to the proper position to install the flap servo arms. Do this for ALL FM's NOW!!
  22. Scroll to TRAV Adj. Set the flap U and D to 125.
  23. All the other mixes and set ups are super easy from here on out; just scroll to the screen and make the adjustment. You are home free.
  24. To set the TE for each FM you use the FLAP trimmer and the FLAPERON Trimmer. The FLAP Trimmer moves the Flaps together up or down. The FLAPERON trimmer moves the Ailerons together UP or Down. Between these two trimmers you set each FM TE (trailing Edge) position. Also note that the Elevator trim position is set for each FM.
  25. At this point the TX is 90% programmed and perfect to install your servos, look at the many "How To" builds on this site for assembly tips.
  26. RX assignments:
Elev or Left V
Rudder or Right V



Notes: You adjust the elevator landing comp in the Butterfly menu. This is a liner mix. If you want you can set it up on a curve by programming it on PROG MIX 1 or 2. see the 9303 manual.

To adjust camber so the TE moves together first go to Flap Rate and adjust the value to get the desired flap movement with the slider. Now goto Flaprn MX and adjust the Flaprn to match the flap travel with the slider. Between these two menus you can get what you want.

This Quick Start will get you there without a ton of theory, The why and how comes are answered on line by a few 9303 guides. Please refer to the JR 9303 manual and guides for the in-depth coverage of the 9303. Click here for Sherman's 9303 guide.


This is the next step to the F3X Quick Start. Once you have your 9303 in hand and are starting to get a good feel for programming you may want to try this. Note: It’s just ONE way to skin this cat! YMMV.

Here we will set up a F3B model using Launch/Cruse/Speed/Distance & Thermal FM (Flight Modes). I didn't mention Landing because I use the L3P sw for Launch/Cruse/Speed even though the menu reads; “Launch/Cruse/Landing.” With a few tricks we can get most of the desired mixes and rates automatically during the Landing phase if you have the current software installed. It’s not perfect but we can work around this.

What you do is set everything up as you like it in Cruse mode. This is normally where you do all your flying. Let’s call this the Foundation and build from there.

You already know how to navigate the menus so I will drop the Scroll and push info. Just Do eet!

  • Goto DeviceSEL (remember how?)
  • Goto Speed. Choose R3P.
  • Goto LAUN and choose L3P if it’s not already chosen. This puts the launch sw (switch) on the Left 3 position sw allowing 5 FM to be used. TC: You may find that you would like to move that L3P switch to a better location that is easier to reach while flying. What some do is swap the ELEV D/R sw with the L3P sw. It’s easy to do and no soldering. If you want the launch sw on top left than buy a Heli TX and save some hassle. Also if your TX has the REV/Norm options below the Launch menu tree than you have the latest version of the 9303 software at this time.
  • Now you have activated all available Flight Modes. What will you do with all these??? First this is contrary to what I normally do. I like the least switches active as possible but there is just no getting around the usefulness of Flight Modes. The other way is to use the slider and trims and that’s not as easy as flipping a sw and having Camber Set, D/R Set, Diff Set, Elev trim set for certain flight conditions. Once you get used to the FM concept its better…there I said it. It’s BETTER.  …Now let’s get to it!
  • Hit ENT
  • The Secret to FM is this: Drum Roll Please! …..Push the camber trimmers up or down depending on the nature of the FM. Add camber for Thermal and Launch, Remove camber for Speed and sometimes in Distance. Trim the elevator in flight and that’s about 90% of it right there! Simple isn't it!
  • The pre defined mixes are adjustable in each FM. Warning! Please don’t get all caught up with available features. You don’t need to turn ALL of them ON just because you have them! You will create more trouble for yourself. Proceed slowly and make adjustments that matter and evaluate the set up with fight tests!
  • Let’s go down the menu:
  • D/R & Expo: Notice this is where you can set 3 different D/R or Expo rates for each FM. So you can have 2 rates via the switch or choose a specific rate with the FM.
  • ELE>FLP: Put the mix value in PosO. Copy the same value to all FM and turn it off on Launch and off when the flap stick is about 10% down. To do this scroll over to the extreme right and choose SPOI STK and set to 90. Also switch LAU to Pos1.
  • AIL>FLP: Put the mix value in PosO. Copy the same value to all FM and turn it off on Launch and off when the flap stick is about 10% down. To do this scroll over to the extreme right and choose SPOI STK and set to 90. Also switch LAU to Pos1.
  • Differential: Typically you use more diff for launch and less or reverse diff for Landing than you use for Cruse. Speed and Distance FM values differential are set here also.
  • FM Delay: I don’t use it. If you want it may helpful coming from Speed to Cruse but not from Launch to Speed or Launch to Cruse. A little delay goes a long way.
  • Flaprn Mix: You need to put in a value in each FM if you want “Snap Flap” operational. Just copy the value you have in Cruse to all other FM’s.
  • AIL>RUD: Self explanatory. TC: I use less or none in Speed, more in Thermal and somewhere in between for Distance. Overall I use a little just to start the turn but use the left thumb during flight. If flying a V-tail model be sure there is NO MIX in landing. Why? Ever hear someone complain about V-tails in the landing approach being “wiggly” That’s typically because they have too much AIL>RUDD mix and when they make a small Aileron correction they also automatically mix in Rudder. The Roll correction caused a Yaw problem. Turn it off and the problem goes away and V-ails suddenly track straight!
  • Butterfly: This is covered in the Quick Start.
  • Flap Rate: Covered in the Quick Start.
  • Notice that we used no free mixers and we have 5 FM and a lot of options. The 9303 is a sweet radio.
  • Some useful options:
  • AILE>RUDD on its own switch! Make a mix in PROG.Mix3. Master is AILE slave is RUDD. Assign sw AUX4. Put a value in Pos1 and then you can turn it on and off as you like. This will override any AILE>RUDD mix you have set in FM.
  • ELEV comp on a curve. If you need this (typically you don’t) you can have the Elevator compensation on a curve with the flap stick. Go to PROG.Mix1 and set the master to SPOI and slave to ELEV. Note the graph on the right. Move the SPOI stick and see how this works. You put a value at points along the path of the SPOI stick. Just start with only 3 points for now. Keep Point-6 at 0. If you change from Point-6 from 0 then your elevator trim will change! Set Point-3 at -20 and Point-1 at -20. This will apply Elev comp for ½ the flap travel and level off for the final ½ flap. Typically you don’t need extra down on the bottom ½ of flap travel. If you find you need something different than change the value and the shape of the curve as needed. Anyway you can see how this works and by keeping the points to a minimum it’s easy to adjust. If you need more points add them. If you want to remove a point then highlight it and press CLR. Add EXPO to round the curve for a smooth transition. Watch the graph and see the results on the curve. Do not select a sw this way it’s always ON. If you go this route be sure to take out all values of SPOI ELEV in the Butterfly menu so you don’t add confusion.
  • Want more? Ok one more. You can have Crow on a sw also. Just assign a value in Butterfly for SPOI>Flprn. Assign sw BTF. Now you can chose for Crow on final or not with a flick of the switch. A bit of Crow (Ailerons UP) really helps in choppy conditions.
  • Now every switch is working! Especially if you add a timer. Are you overwhelmed yet?
  • Next time: How to Trim and tweak all this stuff for best performance.
  • CU.


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