testing GW60, much smaller SDoP-errors when mounted on the upper arm as compared to the boom (vibrations).

5 fastest 10 s runs: knots+/- avg-error (max. SDoP)

boom                    upper arm

29.035+/-0.133 (0.855)     29.005+/-0.082 (0.389)

28.785+/-0.127 (0.778)     28.756+/-0.101 (0.428)

27.407+/-0.211 (1.127)     27.334+/-0.071 (0.369)

27.289+/-0.164 (0.952)     27.322+/-0.051 (0.233)

26.596+/-0.126 (0.894)     26.565+/-0.116 (0.564)