Shader Along Spline

I’m trying to recreate the jumping jets shown in this video: https://www.youtube.com/watch?v=4unF-H0ePbg

They have been done using a spline and a shader. I’ve been trying to create the spline using the ‘Predict Projectile Path By TraceChannel’ without any success.

Does anyone know how to create the spines and shaders for a jumping jet?

Thanks

…or just how to draw a Spline along a ‘Predict Projectile Path’?..

The video is just a simple panning style material, and possibly an object (mesh or particle) following the spline for the front of the jet.