Efficiency test data submitted by Cong Rong
Tested Longbow Draw weight
@28"
Brace height Stored energy Stored energy per pound of draw weight Arrow weight
(grain)
Arrow speed
(fps)
Kinetic energy Efficiency Kinetic energy / Draw weight
Centaur Carbon Elite 60.1 7 55.84 0.888 548 193 45.30 81.13% 0.753
Bearpaw Quick Stick 39.1 7 1/4 33.13 0.847 329 191 26.61 80.31% 0.680
Black Widow PLX 57.5 7 1/4 50.92 0.886 483 194 40.37 79.28 0.702