After a recent house fire (started by LiPos), I purchased a number of second-hand R/C model aeroplanes. This proved to be the most cost-effective way of replacing what was lost in the fire. Most of the aircraft had been sold because the owners were too scared to fly them, or unhappy with the way they flew. Whilst I was preparing these models for flight I found that most had very little chance of meeting their former owner's expectations due to simple mistakes that could have easily been corrected. I made a list of four such models that exhibited these issues so that we can all learn from my experiences.
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