RCU Forums - View Single Post - LOCKHEED P-38J “LIGHTNING”. A giant 1/4 scale scratch built model
Old 11-24-2018, 12:28 AM
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fbielsa
 
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Glad for it Pittscrazy

I have used a 14-channel PowerBox Competition SRS® backer and two redundant Futaba R7006SB® receivers.

Four channels of the backer have been programmed for a total of 8 servos from the device (2 for ailerons, 2 for outer flap, 2 for inner ones and 2 for elevator), leaving the rest of the settings to the transmitter. It is switched from the outside by means of a PowerBox MagSensor® magnetic switch hidden behind the wall of the nacelle.

Except the two analogue throttle servos 58 oz-in (MPX Profi 3BB), the rest are digital coreless Savox®, with titanium gears: 166 oz-in (SC1258TG) the two in the elevator, the two of rudders, both of ailerons and that of the door of the nose landing gear; of 277 oz-in (SC1256TG) the four flap, the one of the steering wheel and the two of the doors of the main landing gear.

This makes a total of 16 servos, although they could be more if we use them for the choke of the engines or for mechanical valves of the pneumatic circuit, for example.