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RV-7A Construction Log
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Date:  8-15-2008
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Tail - Drilled Hole in Elevator Horns to HS

I got a piece of 1/4 brake line from Napa and a smaller steel tube from Vans which fit snuggly in the brake line, but had a 1/8 inside diameter. So I drilled the hole in the horn using a #30 istead of a #40 drill. I couldn't fine any steel tube with a 3/32 inside diameter. I used the step drill to enlarge it to 1/4 inch and then deburred it. It all worked fine. The bolt goes right through and everything moves freely. I used BoeLube on the drill bit inside the steel sleeve.
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1/4  Brake Line + 3/16 tube and #30 drill bit

1/4 Brake Line + 3/16 tube and #30 drill bit

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This held the drill straight in line with bearing

This held the drill straight in line with bearing

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Bolt goes through everything nicely

Bolt goes through everything nicely

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