They can be made in just a few minutes. For this you need to saw off part of an old metal barrel and attach it with bolts to handles (e.g., spade handles). Yu MACHALA, 13 pet., Lviv, Ukraine
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A simple design of the airframe suggested that the German model airplanes G. Jung and C. Rosa (Fig. 1). The model has good performance and can be built athletes having small practical...
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