Caterpillar 1Y73 Research Engines
Cat / Dyno Trolley Construction - Page 1

Drilling the front of the main trolley beams for the eyebolts. Pivot bush sitting on top, waiting for its own 40mm hole to be drilled.
That is a large Stanley tape, nearly 4" square, to give an idea of scale.

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Caterpillar 1Y73 Research Engines

Cat / Dyno Trolley Construction - Page 1

Drilling the front of the main trolley beams for the eyebolts. Pivot bush sitting on top, waiting for its own 40mm hole to be drilled. That is a large Stanley tape, nearly 4" square, to give an idea of scale.

Drilling the front of the main trolley beams for the eyebolts. Pivot bush sitting on top, waiting for its own 40mm hole to be drilled.
That is a large Stanley tape, nearly 4" square, to give an idea of scale.