[LEE]

Hey Helmut buddy, great to see your latest creation! A little departure from the ordinary...I like it Hopefully see you on the circuit next summer...going to be a busy one I see.
Merry Christmas and Happy New Year

[BAMDFISHER]

For my 35 & 40% Large aircraft I use the following setup;

2 JR PowerSafe receivers. Each receiver uses 2 A123 LiFe batteries. Total 4 batteries

Throttle Left Receiver Choke Right Receiver (It can stop the engine)
Ignition Kill Left Receiver Smoke Pump Right Receiver

Rudder #1 Servo Left Receiver Rudder #2 ServoRight Receiver
Both Rudder Servos on the new SWB Self Adjusting Servo Tray with Bellcrank ($140) so that if one servo fails it will still move the rudder.

Left Elevator Servo Left Receiver Right Elevator Servo Right Receiver
2 Left Airelon Servos Left Receiver 2 Right Airelon Servos Right Receiver

From one of the two Left Receiver batteries I run the Ignition
From one of the two Right Receiver batteries I run the Smoke Pump

[Trumpetman]

Originally Posted by BAMDFISHER

For my 35 & 40% Large aircraft I use the following setup;

2 JR PowerSafe receivers. Each receiver uses 2 A123 LiFe batteries. Total 4 batteries

Throttle Left Receiver Choke Right Receiver (It can stop the engine)
Ignition Kill Left Receiver Smoke Pump Right Receiver

Rudder #1 Servo Left Receiver Rudder #2 ServoRight Receiver
Both Rudder Servos on the new SWB Self Adjusting Servo Tray with Bellcrank ($140) so that if one servo fails it will still move the rudder.

Left Elevator Servo Left Receiver Right Elevator Servo Right Receiver
2 Left Airelon Servos Left Receiver 2 Right Airelon Servos Right Receiver

From one of the two Left Receiver batteries I run the Ignition
From one of the two Right Receiver batteries I run the Smoke Pump

Wow! That is a SOLID setup! I guess because you are using the two powersafe receivers and the LiFe batteries you don't need a power distribution system and you have complete redundancy on every flying surface. What size of batteries do you use in this configuration?

[BAMDFISHER]

I use Electrodynamics A 123 Life 2300mAH batteries. www.electrodynam.com

The batteries are pre-wired with a EC3 connector that goes directly to the receiver. The other lead is a standard JR male connector that I can (if wanted) put into a normal switch to control the Ignition or Smoke pump. This JR lead can also be used to do a voltage check with their EDR 207 Nano tester. It gives a readout for each cell and the same lead with their adaptor is used to charge the battery on any balance charger made for Life or LiPo batteries.!

I also forgot to mention that PowerSafe Receivers use a very simple "Soft Switch" that is used to turn OFF the power going to the receiver. If the switch fails or if you remove it power automatically goes directly to the receiver. Another feature that makes it for a safe setup.

With my all composite 3 meter CARF Sukohi SU-31 with a 250 Moki Radial engine that I have about $9K invested, the price of an extra receiver at $280 bucks is cheap insurance!

For my 100 cc and 75 cc planes I just use 1 PowerSafe receiver.

[BAMDFISHER]

Hey Helmut I sent you a PM. Are you going to Joe Nall this year and if so where do you park?

Brian Fisher

[YoungestPiperCub]

Originally Posted by Helmut Schmitter

Hi Kevin this is what i am using in my 38% Super Decathlon with 2 x 2800 mah Poly's .
Here are the specs from the PowerBox


PowerBox Competition SRS



Features:

SRS - Serial Receiver System provides the ability to use receivers with a serial interface, such as those made by Spektrum DSM2 and DSMX, Multiplex M-LINK, Futaba S-BUS and Jeti R_SAT.
Unrestricted channel assignment of the PowerBox outputs
Integral high-resolution graphic OLED screen with 128 x 64 pixels
Particularly user-friendly menu-based programming using the SensorSwitch
Signal amplification and interference suppression for 14 channels and 18 servos
Synchronised servo output for totally synchronous servo response
Flight recorder: records Lost Frames and Fail-Safe periods for all receivers connected to the backer
Variable frame rate, range 12 ms - 21 ms
16-bit processor for fast, high-resolution signal processing
Four match-channels, each for two servos. Accurate adjustment of all eight servos
Double regulated output voltage for receivers and servos
Can be connected to Spektrum and Multiplex MSB downlink channel bus systems
Direct transmission of battery voltages and capacities to the transmitter
Separate voltage and capacity displays for each battery
Software-selectable servo voltage: 5.9 V or 7.4 V
Minimum value memory displays any voltage collapses
Large-area heat-sinks for high regulator power
Regulator monitor, regulator malfunction indicator
Support for three battery types: LiPo, NiMH / NiCd, LiFePo
Suppresses any servo feedback currents which might develop

Specification:

Operating voltage: 4,0 Volts to 9,0 Volts
Power source:
2 x two-cell LiPO batteries 7,4 Volts
2 x five-cell NiCd or. NiMH batteries
2 x two-cell LiFePo batteries (A123)
Current drain:
switched on - approx. 125 mA
switched off - approx. 33 µA
Dropout voltage: approx. 0.25 V
Max. receiver and servo current:
2 x 10 A (stabilised) according to cooling , Peak 2 x 20 A
Servo signal resolution: 0.5 µs
Servo signal resolution: 0,5µs

Signal repeat rate:
12 ms, 15 ms, 18 ms, 21 ms (frame rate)
Screen: OLED 128 x 64 pixels, graphic
Servo sockets: 18Sockets, 14 channel
Temperature range: - 30 °C to + 75 °C
Weight: 115 g
SensorSwitch: 15 g
EMV approval: EN 55014-1:2006
CE approval: 2004/108/EG
WEEE Reg. No.: DE 639 766 11
This battery backer fulfils the EMV protective requirements, EN 55014-1:2006 with certificate dated 10 February 2011. EMC approval 2004/108/EG.

Helmut,

So this allows you to use Sbus but keep standard servos?

How much is one of these???