arffy....thx for the "tip". Okay, I have hovered this blackhawk several times now ....smooth...2100 rpm at 17.25 amp draw (hover).
I do have to say it is made of low quality parts....screws have poor threads ( as they have fallen out of the frame , I have tapped frame spacers with 2-56 threads and installed 2-56 alenhead screws with blue locktite. The main gear is very soft material, the bushings on the feathering spindle are way too soft, allowing for too much flex of the main blades.The linkages have poor threads too but haven't "let go" yet, I am thinking of comparing them to those used in T-rex 450. I know the Shogun feathering spindle is exactly same as Blawkhawk....no surprise both made by Walkera. As my flying progresses , I will upgrade with better quality parts.