Saturday, April 2, 2011

UMX Extra 300 Flap Mod

The UMX Extra 300 slows down nicely, but every plane can slow down more.  This Z8 flap mod requires no additional hardware with a DX6i or better.


Note:  The jumpy control surface movement 
is due to defective DX8 pots, not the Extra 300.

START:
  1. MODEL RESET
  2. Bind
  3. Adjust pushrods for neutral ailerons
  4. Unplug the battery 
  5. Switch the right aileron servo plug to the empty socket on the Extra 300 all-in-one board (that channel is landing gear).
  6. Plug in battery
DX8:
  1. Switch the wing mode to dual ailerons
  2. Mix the AIL > GER with 100%, 100%, and 100%  offset (Sw: On)
  3. Mix FLP > GER with 50%, 0%, with 0% offset (Sw: Flaps)
  4. Set the flaps to deploy 50% in the flap settings
  5. Switch the landing gear switch to the deployed position (1)
DX6i:
Flaperons (up to 60%):
Red steps, plus...
  1. Flap Switch - 0
  2. Gear Switch - 1
  3. SETUP LIST
  4. REVERSE
  5. GEAR (R)
  6. WING TAIL MIX
  7. DUALAILE (ACT)
  8. ADJUST LIST
  9. SUB TRIM
  10. AILE (Left) 100
  11. Gear (Down) 100
  12. FLAPS
  13. NORM (Up) 40
  14. LAND  Between (Up) 40 and (Up) 100
  15. ELEV  Between (Down) 0 and (Down) 30    [for the LAND position]
  16. MIX 1 (ACT)
  17. AILE -> GEAR
  18. D (+100%) U (+100%)
  19. SW (ON) TRIM (ACT)
  20. MIX 2 (ACT)
  21. FLAP -> GEAR
  22. D (-100%) U (-125%)
  23. SW (ON) TRIM (INH) [= No changes]
  24. Flap Switch - 1/0

Spoilerons (up to 60%):
Red steps, plus...
  1. Flap Switch - 0
  2. Gear Switch - 1
  3. SETUP LIST
  4. REVERSE
  5. GEAR (R)
  6. WING TAIL MIX
  7. DUALAILE (ACT)
  8. ADJUST LIST
  9. SUB TRIM
  10. AILE (Left) 100
  11. Gear (Down) 100
  12. FLAPS
  13. NORM (Up) 40
  14. LAND  Between (Up) 40 and (Down) 20
  15. ELEV  Between (Up) 0 and (Up) 30    [for the LAND position]
  16. MIX 1 (ACT)
  17. AILE -> GEAR
  18. D (+100%) U (+100%)
  19. SW (ON) TRIM (ACT)
  20. MIX 2 (ACT)
  21. FLAP -> GEAR
  22. D (-100%) U (-125%)
  23. SW (ON) TRIM (INH) [= No changes]
  24. Flap Switch - 1/0
Step 15 is optional, but if you set the elevator adjustment correctly you shouldn't need to re-trim for level flight when the flaperons or spoilerons are deployed.  Spoilerons may be more effective for high alpha flight and conducive to hovering.  Dual Rates and Expo will still work fine with either radio.
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