On Sunday, I went to this informal gathering near Mallory Park to commemorate the passing of Martin Gelder (of Real Classic magazine and IKBA message board fame).
Here is a video clip of John Young demonstrating his Triumph Trident 750 powered Hill Climb car (running on open pipes) and his even more insane jet powered NVT Easy Rider moped. Play with the speakers on 11 for full effect - the jet was absolutely deafening!