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

 

During mounting of the empenage and elevator surfaces, this is a good moment to fabricate the elevator pushrod assembly.

First of all, I had to prime the inside of the pushrod to protect the pushrod against corrosion with the primer. You can't really get in there with a spray gun so the best way is to tape one end of the pushrod, pour some primer inside and then tape the other side. Now slosh the paint from left to right and roll the pushrod over couple of times so the paint evenly distributes over the inner surface. When finished, remove tape from one end and let the excess paint drip out of the pushrod.

You will have to remove the paint again from the first half inch of the inner tube as otherwise the VA-101 threaded rod ends won't be able to slide in the pushrod.

Then initially installed the MD3616 rod end bearings on the VA-101's. No need to tighten this yet as you will need to adjust the lengths onc the pushrod is fitted in the control tunnel.

The VA-101 connects to the pushrod with 8 MSP42 blind rivets. You will have to layout the spacing on this circular part yourself and take care of the edge distance on the holes on both sides (VA-101 and pushrod bar itself).

A little trick to get the spacing right is using a little paper tape ruler where you evenly distribute the 8 rivet positions.

 Now mark the depth of the VA-101 in the pushrod tube and mark it on the pushrod in order to evaluate edge distances on both parts.

Taped the paper template around the pushrod and marked spacing locations on the pushrod.

Then start drilling first #40 and insert cleco's as your go.

Here's a picture with all holes drilled  #40.

Then used the reamer to enlarge the hole to #30 for the MSP42 blind rivets. Building airplanes gives you the opportunity to shoot some nice spacy pictures sometimes :)

Did the same on the other end.

And finalised that side #30

 MSP42 requires #30 or 1/8" drilled diameter. Edge distance 2 diameters is 0.250. Measured from the hole edge to end of pushrod should be 1.5 diameter or 0.1875".
As you see, I get 0.202 which is very good.

 On the other side (VA-101) I end up with even more edge distance. Sucess !

Then I got the pneumatic squeezer out to pull the MSP42 rivets. Walk in the park from here...

 And here is the finished result. Perfect !

How to use

Use the kit buttons in the top ribbon bar to see a chronological overview per sub section per kit. For the full chronological article list, see chronological build link in prelude menu here below. The easiest way to lookup information is by typing in some part numbers or keywords using the search option in the ribbon bar

 

Caution !

Some advice on reading my log for fellow builders !

In some articles, I made corrections at later date on the original article to rectify my own stupidities or faults. Read through the entire article if you intend to use my findings/experiences on your own project !

Social Networking

Share This

Legal Mumbo-Jumbo

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.

JSN Megazine is designed by JoomlaShine.com