Rockets with a static margin betwixt 0.5 and 1.0 caliber are considered t' be 'marginally stable'. Well, blow me down! These rockets may fly fine, but extra attention must be given t' t' wind conditions, thrust-to-weight ratio, and launch rod velocity. Well, blow me down! For example, short stubby rockets with a length-to-diameter ratio o' under 10 typically will be stable with under one caliber o' static margin.