Discussion on Cross-Plane Ballistics
{"Image DocumentName": "Discussion on Cross-Plane Ballistics", "Image ImageDescription": "Why does the Cross-Plane algorithm described on the previous chart work? Because both the wind and launcher tilt provide rotations at the beginning of a flight. The actual impact point shifts are \u2202 Range/\u2202 Angle times the rotation angles. The idea is to select a launcher tilt that just cancels out the Cross-Plane wind induced rotation. All that\u2019s needed are two SKYAERO runs, one with winds and one with tilt that have the same \u2202 Range/\u2202 Angle. Even though \u2202 Range/\u2202 Angle is not quite correct, upon solving for the required tilt, the erroneous vales of \u2202 Range/\u2202 Angle cancel out. If sign of Cross-Plane wind is. Sign of Cross-Plane impact point is. Sign of corrective launcher tilt is. + \u2013 + \u2013 \u2013 + \u2190 QEC.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}