Fafnir his foster-son Sigurd to kill the dragon. Regin instructed Sigurd to dig a pit in which he could lie in wait under the trail Fáfnir used to get to a stream and there plunge his sword, Gram, into Fafnir's heart as he crawls over the pit to the water. Regin then ran away in fear, leaving Sigurd to the task. As Sigurd dug, Odin appeared in the form of an old man with a long beard, advising the warrior to dig more trenches for the blood of Fafnir to run into, presumably so that Sigurd does not drown in the
RRG Fafnir 2 latter be cambered to provide some lift. The strongly tapered wing was ply covered ahead of the single spar, forming a torsion resisting D-box, and fabric covered aft over most of the span, though the surface near the fuselage was wholly ply covered. The wing section, designed by Lippisch himself, was much thinner and less cambered than on the Fafnir, with less low speed lift but also less high speed drag, reflecting the increasing understanding that cross country gliding required speed between thermals as well as the ability to climb within them. As on the original Fafnir, only the inner