Grandson 40

Grandson 40
Nice larger sport biplane for electric power. Original used a geared Astro 40 motor & 21 NiCad cells. An equivalent LiPo battery could save up to two pounds. A good builders project that flies great. 2 sheets.

Plan ID: CF921

Designer: Grumer, Ellis

Span: 61.5

Engine: Astro 40

Issue: 12/93
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