The Mini Sprint from Graupner nickname giant.
The hull is lengthen and two trim-plates build on .
Water Cooling Kit.
Engine Typ 400 mit 7 - 9 Zellen ( 600 mAh / 800 mAh ).
Water-cooling system in the great engine room.
The hull is lenghten.
With out trim-plates .Shaft 2mm with 29mm prop .
With carbon trim-plates.
More pictures coming soon.
