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battery comparison

  1. H

    How short a flight time is OK for newbie students?

    Hi all. I'm starting a club for Junior High students. We will build Mini Speedsters and Mini Scouts. I would like to keep the planes light, so I am interested in using the smallest battery I can get. Using a Hextronic 20g 2300kV with a 5x3 prop, I'm expecting something like a 4.5amp...