Bonzo (oz9298)


Bonzo (oz9298) by Owen Kampen 1967 - plan thumbnail

About this Plan

Bonzo. Radio control scale Goodyear Racer model, for Cox .049 power. Class A for Midwest - RCM air races.

Note this model uses the Midwest Foam Wing and Stab.

Quote: "With Wittman's history-maker serving as a touchstone, our semi-scale foam winged Bonzo came into being in the summer of 1966. While certain changes were made to insure optimum single channel performance, the basic look and feel of the original have been preserved and, in its small way, the little one has also proved out. Several have been built and each exceeded expectations in terms of easy handling, positive response, and a fine flat power off glide. The model pictured is shown after a season of flying and, despite considerable banging around, is still in good health.

As with the Hoosier Hotshot (oz8520) the choice of tame or hot performance is yours, a Cox Golden Bee or .049 Tee Dee creating the difference. The Midwest molded foam wing and stab are again used for ease of building and guaranteed warp-free performance.

While a thinner built-up wing would undoubtedly increase the top speed, the high lift of the thick foam section enables the design to perform well under all flight conditions, despite an all-up weight of 26 ounces. The moderately heavy wing loading does not seem to hurt at all and, in fact, improves the ability to penetrate wind. Skilled flyers have flown the Bonzo in 20 mph blasts when bigger multis have been grounded, though this is not recommended procedure..."

Supplementary file notes

Article pages, thanks to davidterrell80, JHatton.


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Bonzo (oz9298) by Owen Kampen 1967 - model pic


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User comments

Does anyone have dimensions for tailplane? There's several of these designs which are missing tailplane.
Phil Fowler - 08/06/2024
It uses the Midwest foam wing and stab. You can google that, and the first result is this RCGroups page… with some useful drawings. Of course that stab will not be the right scale shape for the Bonzo. Not sure what you're really asking for. You want dimensions of a stab that would fit the scale look of the Bonzo, or dimensions of the actual Midwest foam stab?
SteveWMD - 08/06/2024
See for instance Jack Headley 36" span plan [oz9882] for alternative wing & stab
KvdB - 11/06/2024
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