The other environmental factors involved, including the addition of a new maneuver (the 360° turn around the tower), inadequate pre-flight involvement of Wolff, and the distractions from the base shooting four days prior, combined with Holland's unsafe and risk-taking piloting behavior to produce conditions favorable for the crash to occur. The final factor, according to the USAF investigation report, was the 10-knot (19 km/h) wind and its effect on the maneuvers required to achieve the intended flightpath in relation to the ground.[1]: 125 [2][page needed][3]: 2–3 [4][page needed]