Having done 4 runs at 1,825 prop RPM, one with no weights, one with 11 grams at arbitrary 0-point, one at +113 deg and one at -113 deg, spreadsheet tells me to add 9 grams at 151 deg.
The 11 gram test weight was added at the rim of the 13" spinner. But I need to add the actual weight on the spinner bulkhead 7/8" in from the rim. In other words at 5.5" radius or 5.625/6.5 = 0.87.
Question: is it a linear weigh increase (9/0.87 = 10.4g) or some other relation like squared?
In other words what weight should I add?
Finn
The 11 gram test weight was added at the rim of the 13" spinner. But I need to add the actual weight on the spinner bulkhead 7/8" in from the rim. In other words at 5.5" radius or 5.625/6.5 = 0.87.
Question: is it a linear weigh increase (9/0.87 = 10.4g) or some other relation like squared?
In other words what weight should I add?
Finn
Last edited:
