About this Plan
Halcyon. Radio control lightweight thermal soarer model. 2 functions.
Quote: "THIS MODEL is probably best described as a fair weather flyer, and in fact it came into being because that is the kind of weather in which I most enjoy flying an RC glider. The really balmy days, with the scents of summer in the air. Most current glider designs contain compromises which are to the detriment of the still-air end of the performance bracket, because of the need for penetration in windy weather, but I wanted something that could be kept aloft in quite marginal conditions. Halcyon will sniff out evening thermals, while it is quite rare for an afternoon to pass without some really uplifting thermal flying being enjoyed. So sensitive to lift is it in fact, that use can he made of that emanating from light breezes on very small slopes on your flying field. The prime aim of such a model has to be the achievement of a low rate of sink and minimum wing loading. There are no gadgets because they incur weight, so away went magic tow-hooks, spoilers and other such exotic devices - everything subordinate to low weight, minimal cross-sections and a clean and efficient wing. The fuselage is just wide enough for two servos..."
Halcyon, Radio Modeller, November 1973.
Direct submission to Outerzone.
Supplementary file notes
Article pages, thanks to RFJ.
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