Electric Challenge - The Bipe (oz6990)

About this Plan

Electric Challenge the Bipe. Radio control sport biplane for Astro Flight Cobalt 40 (geared) power.

Quote:- "Biplanes have long been a favorite type of aircraft among modelers. I am certainly not an exception. Remembering the days of the barnstormers, wing walkers, daredevils, etc, I hope to have captured some of the magic of yesteryear. Electric Challenge the Bipe, by Charles D Evans.

My Electric Challenge theme is carried out in this endeavor as well as all the other creations to this point. An effort was made to keep the craft's construction as simple and functional as possible. You will notice the lack of compound curves and flat bottom rear portion of the wing ribs, thereby elimi-nating wing construction problems. 900 sq in of wing area allows a good wing loading, necessary to carry the 21 Sanyo N1700SCRC cells.

The Astro Flight 40 geared Cobalt motor pulls Electric Challenge The Bipe around the sky with authority and permits all the aerobatics this old boy can handle. A more proficient or professional pilot could coax a lot more from the 'Bipe' than I can. My old reliable Aristo-Craft radio, which has served me well, does the controlling chores. The motor controller designed by friend Phil Thayer, bossman at FlightTec, doesn't miss a beat. Smooth is the word for its control ability. I have a fleet of these controls and haven't had failure to date. Try them. I feel you will like them.

Remember two valuable formulas while building Electric models. KISS - (Keep It Simple Stupid) and MILS - (Keep It Light Stupid). Anything you can do to cut down on the weight without compromising the structural integrity of Electric Challenge - The Bipe is acceptable.

Constrcution. It is my habit to make a kit of parts for any scratch-built model. Next, I construct all subassemblies such as landing gear blocks, sides with their doublers, wing ribs with doublers, and any other parts requiring preassembly with the exception of the strut mounts attached to the wing ribs.

Wings: Let's start with the wings because there are two of them. There are no problems here to give anyone with a bit of building experience any trouble. Starting with the top wing for a begin-ning point, you will notice that the cabane anchor points require a bit of work. Wing ribs TW-2 have cutouts in the rib and are one of those subassemblies..."

Hi Steve, Here is Charles D. Evans' Electric Challenge the Bipe from RCM magazine issue 12-95.

Direct submission to Outerzone.

Supplementary file notes

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