Specification
Designed by BJ PARK
Manufacturing by BJ CRAFT
Wingspan 1900mm
Length 2000mm
Wing area 65 dm2
Stabilizer area 18.5 dm2
Spinner diameter 82 mm
RC system 6 ch 7 servos 1ESC
Aileron servo on/above 4kg 4ea Servo
(Futaba S9172 X 2ea)
Elevator servo on/above 3kg 2ea Servo
(Futaba S3174SV X 2ea)
Rudder servo on/above 8kg 1ea Servo
(Futaba S3072HV X 1ea)
SB is No side thrust (No need side thrust)
Use same fuselage for Contra and Single.
CG Wing Root from L/E 280mm-320mm
(BJ Prototype 300mm)
# CG range is very wide. But Find out tail heavy as much as you can.
Try 45 degree UP (60-70% Trottle), Slow harf roll (no use rudder), Find CG keeping 45 line (With out heading drop)
Recommend Elevator Delay or slow speed servo (10mm servo horn, 0.19 -2.0/sec speed)
https://bmfc.bmfa.org/wp-content/uploads/2023/03/Peter-Jenkins-BJ-Craft-Anthem-plusPt-1.pdf
https://bmfc.bmfa.org/wp-content/uploads/2023/03/Peter-Jenkins-BJ-Craft-Anthem-plusPt-2.pdf