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| Repairing a Propeller |
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Wire brush thoroughly to break up any
surface oxide and to remove paint. Grind the damaged edges to a
45° bevel.
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Heat metal hot enough to flow rod
without the aid of the flame. Tin the flat side of the blade and
attach a piece of carbon or copper to support the repair
temporarily.
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Turn and tin the beveled surface,
building new metal until slightly larger than its orginal size.
Remove temporary support with minimal heat.
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Let the repair cool, then grind to
proper pitch standards. You now have a complete repair without
porosity ready to balance and paint.
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