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Old 18th April 2012 | 20:34
  #15 (permalink)  
Bedawee_zeus
 
Joined: Feb 2012
Posts: 6
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From: Treforest
Thanks for the pictures. I managed to get that CMM from Saft. I was unable to get the maximum current wiithdrawal reading but I put it at 115 apms at 24 volts. Thats 2.8 KW with the safty factor included. This is with both batteries opperational at maximum load.

I got an email from Saft saying that the average current withdrawn from the 2 batteries are at 70 amps.

When there is a need to move the trim tabs for the ailerons, rudder and elevator they would consume more current.The trim tabs are electro hydraulically driven. Although it would not last long to deflect the trim tabs to the desired position, it would however depend on how good the pilot is and the weather conditions IMC. This is how I think they got to the average reading of 70 amps. Because the shunt of an extra 40, 50 , 60 amps would only last for like 2 or 3 seconds, till the trims are in possition and also when the aircraft is on it's correct flight path to the aerodome.

I hope that made sense
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