TitleGarrison

“No bird ever flew nonstop from New York to Tokyo, or raced 15 miles high at triple the speed of sound.                                                                                                   
  But birds do something else.
  They do not conquer the air; they romance it..”

  Peter Garrison

HoursAndCounting

Jur's RV7 Aircraft Factory
2917 hours and counting
Some decisions in life are bare of any obvious logic

 

1. Various finishing

17/09/2022 - ADAHRS bracket prep - 5h30

Details
Parent Category: Finishing Kit
Category: 1. Various Finishing
Hits: 213

Working on the ADAHRS bracket. This bracket is an add on sold by Vans to install the ADAHRS module of and EFIS system. The bracket is placed at bulkhead F707 and connects with F787 stiffener web and the top fuselage J stiffeners

First deburred and sanded the bracket itself. It looks kind of funky and has a lot of predrilled holes for all kind of brands of ADAHRS modules from different EFIS suppliers.

Next I drilled the bracket in place. Being level is key here as the ADAHRS will define your horizon position in the EFIS screens.

I used a digital level clamped to the bracket to ensure 0.0 position.

All drilled to #30 for LP4-3 pop rivets.

 After drilling, still all perfectly level.

Also in the longitudinal direction. It's best to do this drilling while the fuselage is fully level on the longerons. Once the fuselage is on it's landing gear, it's very difficult to get this right.

 Very happy with how this worked out.

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It’s possible (not likely) that I’m not as smart as I think I am. (Occasionally, I have moments when I know this to be true. Fortunately, the feeling passes quickly.) Although I have tried to make this information as accurate as I can, it is not only possible, but also quite likely, that erroneous and misguided information lurks within these pages. I cannot and do not warrant these pages to be error free and correct. Furthermore, I accept no liability for the use of this (mis)information. And, as many would say, your mileage may vary. If, after reading this, you are intent on proceeding, please be aware that the contents of this site are protected by copyright (copyright © 2011 and 2012). Nonetheless, you may copy this material subject to these two conditions: (1) any information used is for non-commercial purposes, and (2) the source of the material is properly credited. Of course, you may link to any page herein. At some articles, snippets of the plans from Vans are visible. These are for educational and illustrations purposes only and should never be used as plans for part construction or assembly as plans may have changed since the picture was taken and more important they are protected by Copyright by the Vans Aircraft Mothership company.

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