Build The “BOB”

Fly RC Staff April 17, 2013 Bonus Content

“BOB is an interesting looking airplane and has very unique features. As with many of my previous designs, I used the “KISS” concept. I like to keep it simple. In my experience, simple designs are superior flyers. So it is with BOB.”

NOTE: In order for this to print properly, you must print it at full size. Do not try to print this on a 8 1/2 x 11 printer. The best thing to do is bring it to a store like Staples and have them print it on a large format printer.

BOB completed, ready for battery installation and flight.

Detail showing placement of electronics including battery lead routed forward to battery position, with plan in background.

Detail photo of EDF installation including wire run to receiver “brick” unit. Brick mount detail with .020-inch carbon fiber and music wire pushrod servo connection.

Plastic pushrod guide supporting .020-inch carbon fiber pushrod.

Mast top detail showing keel and spar connection.

Blenderm tape at rear end of keel cut to shape of trailing edge covering.

1/32-inch plywood leading edge support glued over the three carbon fiber rods.

Top view detail of leading edge support showing the three carbon fiber rods.

Vertical fin and rudder detail, showing Blenderm hinge, ply rudder horn with .020-inch music wire and carbon fiber pushrod connection.

Horizontal stabilizer and elevator detail showing tape hinge, ply elevator horn with .020-inch music wire and carbon fiber pushrod connection.

Detail of 1 x ¼-inch Blenderm tape holding produce bag cover to keel.

Spar being glued to leading edge, laying on plan, with loose produce bag covering attached to leading edge.

Photo of Author Tim Bailiff holding BOB at home in Riverside, CA.

Detail of brick installation showing plywood mount and screws securing it to the deck.

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