Test Mule PSRU

Test mule prop speed reduction unit (PSRU)

Here's an interesting idea, a test mule propeller speed reduction unit. A very wide belt tension adjustment range allows the installation of almost any drive pulley diameter, thus many different reduction ratios (and matching propellers) can be test flown without major modification.

A similar system with a limited adjustment range may be available at a later date.

Dan Horton

Dan Horton says he is “just a homebuilder.” He has been a pilot more than 30 years and currently flies a custom RV-8.

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