- Joined
- Jul 18, 2007
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- 972
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- 88
How many minimum growth rings per inch for a Pitts S1-11B
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Spar growth rings
- Thread starter Jean-luc
- Start date
- Joined
- Aug 18, 2006
- Messages
- 1,142
- Reaction score
- 16
- Joined
- Jul 18, 2007
- Messages
- 972
- Reaction score
- 88
