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Heldeberg Designs LLC

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Home Shop Machinist

Exhausting options-a DIY muffler for a Pietenpol.

Alignment aids for Lycoming oil screen housings.

By William Rynone, Ph.D., P.E.

Kerpow!

An untimely prop strike results in more than just a call to the insurance company. Decisions regarding engine and propeller replacement open up numerous options. By Bill Repucci.

Jet Eze

Turning a dream into reality, part 1.