Hal F8 01 Trajectory Predictions

Trajectory/Weather Predictions _{(Prediction Tutorial)}

VAST uses multiple trajectory prediction tools including an online tool. Weather forecasts are also used for planning and logistics. Launches are postponed if surface winds are dangerously high or if there is too much precipitation. The wind speed in the jet stream is also an important consideration. If winds are too high, the launch team will have to drive long distances to avoid forested landings in northern Idaho.

• Launching from Edicott Washington. This prediction was made at 8:09, Sept 17, 2008 by Jasper Nance.

• Launching from Waiwai River Road, before it turns into the river valley. This prediction was made at 1:15, Sept 16, 2008 by JS.