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Converting Goldberg Anniversary J3 Cup to Electric

by Donald G
(Auburn CA)

Hi,
A friend gave me an old Goldberg kit for the J3 Cub. I have built the plane but can't figure out what servos, batteries, motor to use, although a few online sites suggest a large brushless motor with about 1000 to 1100 watts. The rest of the electric is proving difficult. Plane will weigh in a just over 8-pounds.

Do you have any suggestions for this effort?

Thank you.

Donald Gazzaniga
Auburn, CA

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More Power !!!!
by: rcdude07

Carl Goldberg kits are old old kits that were built and designed to be heavy to offset the weight of old glow engines. This kit was designed for a 40-60 (.40 to .61) two stroke glow engine. So you'll need a minimum of an electric motor comparable to a .61 two stroke. An E-Flite Power 60 should be a good starting point.

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