When I flew my first scratch build plane a few weeks ago (the BF109) I was amazed how fast you get used to the speed of à model. The FT Racer wood then also be the next build, but the idea to have a small fast bird brought me to the pylon racers.
The wings would be à little longer as I hoped it to float better.
To be sure to have strength enough into the wings I glued a carbon rib in the wing.
Due to the fact that I reduced the plans I decided to leave out the rudder servo and used only 3 servo’s off 5 grams.
From Hobby king I received the floater jet replacement motor of 2150kv 44gr , and the battery wood be something not to heavy so I shoos à 3 cell 800mamp batter of 70 gr.
The propeller is a 5 x 5
I did not bother to match about colors or looks, I only wanted it to be a quick build to test what this motor could do when I fired it up.
The maiden was again not à success, the plane was going in a tork roll as soon as it launched.
Therefore I rebuild the motor fixation and put in a huge angel to the right and below.
The second test again gave a spin to the left and à nose into the ground. So I started to test with lead into the tip of the right wing, and so I came up with 10gr.
I Hand launched it again and with 80% of power the plane raised to the sky and as soon as it was 3 mistakes hi , I cut the power to half.
This little bird flew nice, but whooo…. what speed was this thing going? I did some test with full power and I realized very quickly that this would be my little adrenaline raiser.
What i needed to do was use more expo ( 40%) and mix the trottle with the elevator.
à little bid downforce on hi power was needed.
My Sisters son of 10years old who by the way filmed the video with his Pad, was amazed and after à little discussion we baptized the plane “ The Stinger”
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