HI TonyF

I heard the guy who used a dual rate switch was whoever used the AXI motor because it drew over 70amps at full power (used full power for the upline snap etc). But might have been Matt and Roland too, but I didn't hear anything.
I use a 20x11e and draw 60 amps, so a 22x12e I'm not supprised would kill the batteries. I might try a 21x12e (65 amps) because Noel Barret used that with great succes. He wrote the magazine article which stated Mr Hacker had made the 13xl for F3a. But then he could be wrong.

My plane at the weekend [link=http://rcgroups.com/gallery/data/506/34526smaragd3rd.wmv]electric smaragd[/link]

Cheers