@JohnRob
The velocity still slowly increases when stationary but only when standing upright, when tilted over, still stationary in the X-axis, the velocity increased dramatically
{
-34.51 m/s-33.83 m/s 0.10
39.218,-6.65. (Time, X-Axis Acceleration)
-35.18 m/s-34.51 m/s 0.10 (V, u, dt)
39.318,-6.43
-35.83 m/s-35.18 m/s 0.10
39.419,-6.76
-36.51 m/s-35.83 m/s 0.10
39.520,-6.69
-37.19 m/s-36.51 m/s 0.10
}
It shows that the velocity is also fairly similar to the current elapsed time, maybe a coincidence or I'm not handling the dT correctly. Slightly worrying as this should be in a rocket, which don't fly exactly straight and directly calculates the height reached.
-Harvey 