J-Twin: Scratch-built FPV Platform

Introducing the J-Twin, a twin-motor airplane I designed and built specifically for FPV. I took it for its maiden flight today and I behaved amazingly well, just a click or two of aileron trim and it was all set. The center of gravity is approximately at 1/3 of the wing chord and it didn’t present any negative tendencies.

The plane is built using Adams Readi-board (dollar store foam) and balsa for the ailerons with reinforced packing tape for strength. The wing breaks down into 3 sections and it was built using the Armin Wing technique (from Ed, Experimental Airlines).

Dimensions:

• Wingspan: 60″
• Length: 36″
• Wing chord: 6.5″

Powertrain:

• 2 x Turnigy D2630-11 1000 KV motors
• APC 9 X 6 props (counter-rotating)
• 35A H-King ESCs

RC:

• FrSky X8R receiver
• APM 2.5 flight controller
• MinimOSD

FPV:

• ImmersionRC 5.8 Ghz 600 mW Video transmitter
• Fatshark RVC922 video goggles with built-in 5.8 receiver
• GoPro Hero 2 for recording and video out.

Stay tuned for a flight video.

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