Electra - plan thumbnail image

Electra - completed model photo

from Carl Goldberg
78in span
Tags: Electric Glider R/C
formers unchecked

This plan was found online 04/05/2015 at: http://www.hippocketaeronautics.com/hpa_plans/details.php?image_id=7288
Outerzone planID: oz6614 | Filesize: 1148KB | Format: • PDFbitmap | Credit*: IanMelville


About this Plan

Electra - Radio control sport trainer for 2 or 3 channel radio and .05 electric brushed motor. Discontinued kit from Carl Goldberg.

Quote: "Electra is a state of the art thoroughbred with the temperament of a pussycat. She is based on the proven and popular Gentle Lady sport sailplane redesigned for the higher performance demands of electric flying..."

Supplementary files

Kit instructions. Very long and detailed, 32 pages of text and pics. Also, decals sheets and parts identifiction sheet (could possibly be scaled up to draw out the wing ribs?).


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User comments

Hi Steve, I had at least a couple of flying students with Goldberg Electras. They handled well, but were heavy and climbed poorly with the stock equipment. Six cells were recommended, but that wasn't enough with the direct drive ferrite motor and a floppy nylon prop.A student of mine built one that came out at over 50 ounces with the batteries in it. We put in the old Master Airscrew ferrite motor/gearbox/prop combination, which gave a good climb for sport flying. I only mention these because the fuselage is much wider than it needs to be for modern gear. The old motors are heavy, so you'd still want to use lipos and lighter radio gear. All up weight in the 25 to 35 ounce range is probably best. At over 50 ounces, I found it hard to catch thermals, though I'm sure at 25 it would be easy. That kind of weight (50 ounces), combined with an extended shallow dive, reached an airspeed where pulling up could break the wing. IMHO, this model would be great for a nostalgia trip. Otherwise, it would be better to convert a Gentle Lady using modern gear. The equipment from a Radian ought to be fine for either model, using about a good quality 10X8 prop if competing in ALES to 200 meters. The Airtronics Eclipse was a comparable model that flew fine if built stock from the kit. I think it came out somewhat later, though.
Lincoln - 11/05/2015
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