Baby Boomer (oz12631)
About this Plan
Baby Boomer. Free flight sport model for .020 engine. Twin boom design.
Quote: "This model is simple and easy to build, it has a rather unique profile in flight, and it flies well in calm air or in a mild breeze. If you put in enough fuel for more than a fifteen second engine run, put on your track shoes. I have lost four so far, on out-of-sight flights (some people never learn).
There are no tricky adjustments on Baby Boomer; just keep the alignment true and the glide slightly nose heavy. There is no dethermalizer built into this model. Frankly, I haven't thought of a good one yet. Let us know if you come up with one.
Since the wing is the only build-up portion of the airframe, I recommend it as the place to start. All wing ribs are the same, so cut out twenty-three of them. The W-2 ribs are 1/8 inch balsa material to provide more glueing surface for the booms. Be sure to notch the trailing edge to receive the ribs. Makes a stronger joint. Also, glue the dihedral gussets in after the dihedral has been set. Use plenty of glue at these joints.
I usually give the wing frame two coats of thinned butyrate dope before covering, and allow it to set overnight to dry completely. The covering is Japanese tissue or light-weight Silkspan, with two coats of clear dope to finish. Trim with colored tissue if desired.
The booms, fuselage, and tail may be completed while the wing is drying. Start with the stabilizer and rudders. Cut out stabilizer and cement to notch in bottom of booms. It is best to lay the booms and stabilizer on a flat surface and cement the booms..."
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