Dual Deployment allows you t' retrieve your rocket closer t' t' launch pad by ejectin' two different size parachutes from t' rocket. This is done with a special altimeter. Aye aye! How do you mount t' altimeter into t' model rocket? How do you connect t' ejection charges t' t' electronics? These are questions that are answered in this video. This is a continuation from Part 1 at: www.youtube.com/watch?v=KFbQ17y98hU . Well, blow me down! Part 3 o' this series is located at: www.apogeerockets.com/Rocketry_Videos/Rocketry_Video_28.asp