On Sunday, December 3, 2017 at 7:23:09 PM UTC-8, wrote:


I'm looking at making a test stand, perhaps with a small dyno, to test a Hirth F10A engine for an ASK-14. I don't want to fine-tune the linkages on the 4 carbs inches away from a spinning prop. But I plan to do something more substantial than this:
https://www.youtube.com/watch?v=L8mwZBY4O1g
which is downright scary.

Depending on configuration, might be easier to make a guard to go between you and the prop. Tip proof base with verticals to support wire fence material barrier or similar. You stand on part of the base so your weight adds to base stability. The guard must make it physically impossible to inadvertently fall into or contact the prop.