Not sure myself - the conclusion about the lighter bow being faster was the author's conclusion (page 50 right hand side), not mine. His exact words (my translation): "Surprisingly for us, thet composite bow nr. 203, which had the lowest draw weight according to figure 12, often showed higher "throw speeds" (not sure how to translate wurfgeschwindigkeit, that would be arrow speed measured very close to the bow) with all arrows as compared to the somewhat stronger bow nr. 101, while the two othr composite bows 201 and 202 were lower than the comparable but sinew-backed bows 101 and 102. Respectively, bow nr. 203 shows the highest effectivity (table 15). The shape of the bow is similar to nr. 204, showwn in figures 8, 9 lower and 10, while bows 201 and 202 (figs 8-9 upper and middle) have a shorter handle with more angular curves above and below. Whether this or the greater mass (and therefore inertia) of bows 201 and 202 accounted for the relatively higher effectivity of bow 203 cannot be ascertained, as the bow broke during the first stringing after the winter season." Natch.Justin Ma wrote:Are these the results from Table 1 (p. 40)? I can't read German, but it looks like the arrow speed for nr. 203 (188.8 N -> 42#) is 41.3 m/s (135.5 fps). However, the entry for nr. 103 (235.6 N -> 53#) seems to have the highest arrow speed at 44.6 m/s (146.3 fps), though the nr. 102 bow (219.6 N --> 49#) isn't far behind at 44.5 m/s (146.0 fps). Maybe I'm misreading it.Angela wrote:? Most interestingly, the bow with the lowest draw weight, nr. 203, had the highest arrow speed and showed the highest effectivity in target shooting.
The author quotes Karpowicz and his Turkish bow reconstructions several times. Possibly they mean some kind of draw weight-effectivity radio, or the most effective draw weight for a specific range? To be honest, I am absolutely clueless about bow building, physics etc, there are several such graphs in the article and there is much talk of physical properties, but I have no idea what they all mean... I don't have the origical publication by Karpowicz which Godehard is referring to, but it will be in the references list, perhaps someone has it?As far as I know Adam is building very strong composite bows for flight shooting. The statement above also contradicts these tests: http://www.atarn.org/islamic/Performanc ... h_bows.htm
I am pretty sure I have something on that, will check it later. I remember the diameter was surprisingly low, but I will get back to you with figures. But here again we have the problem of not knowing whether they were really used that way or just for grave goods. I think the Olon Kurin Gol arrows didn't even have metal tips.Also, do you have any information on the shaft diameter (if any) found in Scythian graves? Maybe the arrow tip can provide some information here.

