Twinn Rexx V2 Recommended Parts    Rev 10/31/21
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Electronics
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1. RX - PCM or Spektrum full range preferred  (6 channel minimum)
2. (6) HS-65MG or HS-5065MG servos
3. Flybar rotors - Two GY440 (or GY240) type gyros on DCP and rudder
   
   Flybarless rotors - BeastX + TH-2 XPR,  add GY440 (or GY240) for separate DCP input     (See TH-2 with BEASTX document on support page)
                                    Also   BD3X + TH-2 XPR works well.

Note:  The  BeastX and BD3X above operate only as 3-axis gyros.  All mixing is done by the TH-2 XPR.
            Other FBL units will probably work too.

4. 35A ESC or similar with ferrite ring
5. 5.0V or 5.5V, 5A BEC or similar with ferrite ring
6. Tandem controller - TH-2 XPR + extender board
7. Power distribution board
8. Motor - (1900KV)  500W to 1000W on 4S - Scorpion HK2520-1880KV 
9. 24" servo extension
10. (3) 12" servo lead (male)
11. Battery connectors  - Deans Ultra
12. (2) Deans micro connectors (for BEC)
13. Mini-B USB cable (for TH-2)
14. Batteries - 2500 maH  4S 
15. 11T or 12T pinion

Helicopter
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1. 325 blade sets
2. (2) 450 rotor heads 2-blade or 
   (2) 3-blade, 5mm or 6mm with adapter. Blade 360FX (BLH4752) 3-blade heads seem to work well. 
3. Body kit
4. Engines kit