hp 61

HP engines (Hirtenberger, AG Austria) tech support. Owned by RJL Industries since 1990

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hp 61

Postby Doug1939 » Sat Mar 10, 2007 12:06 am

Guess I didn't read right and posted this under HB German.

I am building a p-51 and needing to buy an aluminum spinner. They all have a prop hub inside that screws onto the prop shaft, but I need to know what is the diameter and thread size of the prop shaft on the hp 61
This is the Gold Cup 61 with sliding carb but I don't know the year. I think the model or engine number has ? 7704 on the mounting platform. Hope this will help.
Thanks,
Doug
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Postby MECOA » Fri Mar 16, 2007 7:21 pm

standard 1/4x28 thread
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