Friday 4th January 2008 3 hours 30 min
Countersunk E-616-PP for Platenuts and dimpled #6 holes. Cleaned and etched the VS skin. 2nd coat primed elev parts. 1st coat primed E-616PP and Trim Tab spar. 1st coat primed VS and left elev skins.
I rang Vans support about these platenuts surrounding the inspection plate to which the trim tab servo is attached. the platenuts take the screws attaching the inspection plate. The plans call for the platenut lugs to be countersunk to take the dimples in the inspection plate itself. However they are very insubstantial and I could not see how they could retain enough strength after countersinking. The actual process of countersinking such small parts also seemed difficult. The advice I got was that they are not structural (their only function is to stop the platenut from turing while the #6 attachment screws are being inserted or removed. They suggested that I clamp some scrap metal behind the lugs and use this as a guide and a support while countersinking as necessary to allow the dimples to lie flush. Sorry, I forgot to take photos.
The primer is definitely getting thinner - I got runs everywhere.
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Factory prototype of the taildragger RV-9
Progress
- Total Cost to date: €9536
- Total time to date: 609hr 12min
- Of which: Empennage: 280hr 35min
- ..............Wings: 326hr 37min
The Vision
Factory prototype of the taildragger RV-9
Blog Archive
About Me
- Loman O'Byrne
- Dublin, Ireland
- It's a little embarrasing isn't it. I mean men in their 50s should know better than to spend large amounts of money on fantasy (vanity?) projects like this. They should have more sense than to indulge their raging mid-life crises. They should devote themselves to their managerial state-sector jobs. They should prioritise their wife and two kids, even though the kids are almost grown up. They should not undertake complex engineering projects when they have no engineering background and only average DIY skills. They shouldn't take over half of their tiny back gardens to build a workshop that's not even big enough for the project. They should take more interest in other leisure pursuits like golf and following rugby football. They.... I know, I know, I know....but I just gotta!
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