Power system and electronics

With an AUW of 2.3Lb I chose to use a 313W motor that is slightly more powerful than the kit's recommendation of a 250W motor. I found a suitable motor on Amazon.com, combined with a 40A ESC, that fit my requirements of power and weight with the following specs:

Voltage range: 7.4V to 14.8V (2S to 4S LiPo)

Kv: 1,100

Io: 1.6A @ 12V

Max current: 30A

Rm: 0.05 ohm

Weight: 86 grams


Motor attachment to the fuselage followed the kit building instruction manual. I fit two blind nuts between the 1/4" motor spacers and added 3/4" standoffs to achieve the 2 5/8" clearance between propeller and cowl:


The ESC fit above the battery plate, and for balance I positioned the battery about 1" behind F1:


Receiver (FlySky FS-iA6B), elevator and rudder servos (Hitec HS-81 Micro Servos) fit nicely in the compartment above the wings:


Aileron servos attached as called for in the plans without any modifications:



The completed plane with cowl (spray painted) and spinner removed to achieve correct balance:




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