Self-Propelling PIE 2.0 Video 2 of 4

Soft-tooth Gear Speed Test 2

Self-Propelling PIE 2.0 Video 3 of 4

PIE 2 0 Self-Propulsion Video 1 of 4

PIE 2.0 Re-Phased for Self-Propulsion

Strange Physics of Roy Thornson

Soft-tooth Gear Speed Test 1

PIE 2 0 Ground Test 1

Visual Indication of Timing Problem

In Vehicle Initial Test

PIE 2.0 is Ready for Testing!

PIE 2.0 New Upper Wheel and Three Weights with Torsion Springs (Part 2 of 2)

PIE 2.0 New Upper Wheel and First Experimental Torsion Spring (Part 1 of 2)

Inertial Propulsion - Impressive 2 weights with chain drive bench test

PIE 2.0 Chain Drive Bench Test

PIE 2.0 Chain Sprocket Install

PIE 2.0 Dual Weight Bench Test

Bench Testing Second New Weight for PIE 2.0

PIE 2.0 Bench Test Run 1

2 Wheel Opposing Spin 2

2 Wheel Opposing Spin 1

PIE (Pulsed Inertial Engine) Running On All 3 Speeds

PIE (Pulsed Inertial Engine) Second Test Run

First Run After Tear-Down & Rework, PIE is Now Sporting A New Top Bar

T-Belt Running on Low 1st Time

First T-Belt Test Run