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Cosmos YAK54
 
Wing span :2.26 m
Recommended engine : 50cc Gas

Cosmos Katana 

Wing span :1.7m
Recommended: 1.20 4 stroke glow
                                    26cc Gas 
Cosmos Spearhead junior (1942)
 
Wing span : 1.1 m
Recommended : 0.09 2stroke glow
                                   or electric 
Cosmos Mini Delta
 
Wing span : 90 cm
Recommended : 0.25 0.32 2stroke glow