Wyn
Senior Heliman
Location: Oregon, USA
| Regarding the RX current, Futaba says 8 amps continuous, 10 amps peak. If the peaks are short and the RX is feed from two (or more) R/C connectors, 10 amps is probably conservative. I agree with John; a single R/C connector is far more limiting. I've been using two R/C connectors feeding the RX to split the load for quite a while.
Ace Dude, I remember measuring about 8 amp peaks (Fluke 187 on fast min/max) while stirring the sticks (quickly reversing the servo's motors) with four 9252 plus one 9256 on the ground. With a scope across the current shunt of the Fluke meter, the duration was fairly short (about three milliseconds). Despite the high current, the peak low voltage (measured with VoltMagic) is great: 4.6 volts (4-cell 1950FAUP battery, custom switch with twin leads to the RX and power pole connectors to the battery), and the peak low voltage is about the same whether stirring the sticks on the ground or flying. The relatively good voltage actually raises the amps (and servo speed). On the other hand, with a lesser 4-cell pack and switch, the peak low voltage was off scale at less then 3.4 volts (on the ground), peak current is likely reduced proportionally.
Wyn
VoltMagic |
