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  1. #1
    KnifeEdge540's Avatar
    Join Date
    Oct 2012

    FMS Yak 54 flight upgrades

    Hello all, in case anyone has the FMS Yak 54 and is unhappy with the flight performance (namely the low power output for a 3d plane) I just wanted to say that I upgraded the ESC to an 80amp ESC and am using a 5s 3300mAH pack. Flight times are 6-7 minutes and vertical climb appears unlimited. Hovers nicely at 60% throttle and climbs out very easily and quickly. Motor gets warm on a 6 minute 3D routine but doesn't heat up at all on conservative sport flying. I have a motor upgrade ready to install but so far the stock 760kV motor seems to be holding its own lol. Happy landings!

  2. #2
    Hi knife edge. I know this is a very old thread, but I'm hoping you are still monitoring it. I have switched to a 14X6.5 two bladed prop. Not much performance. Many owners are going to 14X10 and say its great. If I do that I know I have to upgrade the ESC. How the heck do you access it. Its sitting deep in the plane. Any suggestions?


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