Showing posts with label Tail Cone. Show all posts
Showing posts with label Tail Cone. Show all posts

Tuesday, July 30, 2019

Storing Tail Cone and Emp Parts

So yesterday I totally disassembled the emp parts from the tail cone and loaded them in the truck and transported them to the hangar for storage.

Everything made the trip with no damage or lost parts :)



When I get time, I need to hang the parts up out of the way and get a table to leave the tail cone on to help prevent damage.  The cheap harbor freight blankets will do for now.


Tuesday, July 9, 2019

Still waiting on wings!

So I really got behind the kit lead time curve on this one....

Van's lead times seem to be higher than what I am used to and they missed their estimate a bit.  Also the freight company is taking their sweet time getting the kit to me.

Hopefully I will get my wing kit tomorrow.

Tuesday, June 25, 2019

Still awaiting wings.....

Wing kit was suppose to be crated last week and I had hoped to be shipped by week end.  Still has not shipped as of today.  Best advice is order early as you can.  The lead times seem to be long right now!

Thursday, May 30, 2019

Waiting on wings

I did not die.....

Just waiting on the wing kit to arrive.

I made the final payment today and crating is scheduled for the 6/17/19.

I have a couple more things I can do to the tail kit but I am dragging my feet.  Vacation next week so no progress will happen till after.

Later gator!


Oh,

I did forget to post these pics of me drilling the elevator horns:

 Temp installed the left elevator.  Sanded down the drill bushing and put it in the center bearing.

 Used it to drill the left elevator horn.


 Switched sides and drilled the right elevator horn.

 Then I upsized the hole to almost 1/4" and then final reamed the hole to exactly 1/4" on both sides.

 Deburred the holes.

Deburred the other side.

Saturday, May 11, 2019

Mounting the empennage to the tail cone #3

I did not follow the directions and mount the elevators to the HS on the bench like they tell you to.  The only reason I can see they have you do that is to help stabilize the whole mess.  My HS is already mounted to the tailcone and I used straps to help keep it stable.  So now I am going to mount the elevators.

First I need to install the rod end bearings into the elevator spars. 

 I made this tool back when I built the RV-7.  It works like a dream at installing rod end bearings into nutplates.

 Detail of how it is made on the business end.

 The bearing goes in like this.  The way it is made, it puts the pressure on the outside of the bearing and not the ball which can damage these things.

 Get the bearing started in the hole and twist to the desired depth.  Easy peasy!

I installed these exactly per the plans which is 7/8" from the center of the ball hole to the face of the elevator front spar.  To make it easier, add 3/8" to that dimension and measure 1-1/4" from the top of the outside edge of the bearing assembly to the front spar face.  I used the depth gauge feature of my digital calipers to do this. 

Amazingly this worked like a treat!   The elevator counterweight ended up perfectly aligned with the HS!  No goofing around with the bearings required!

Tuesday, May 7, 2019

Mounting the empennage to the tail cone #2

Got started tonight by drilling the rear HS spar to the vertical spar mounting brackets.  Starting with #30 drill to get a pilot hole.

Then moving up to a long #12 drill for final hole size.

Then I deburred the holes.

And installed the hardware called out in the plans.

Then per the plans I made this wood block to go between the front spar mounting tabs.  I then clamped it to the aft deck per the plans.

Checked about a dozen times for square.  It was really close out of the box.  I only had to move it 1/32 of an inch.

Once happy I used the front spar mounting tabs to drill the aft deck and the doubler underneath it.

Then I installed the hardware called out in the plans.  No problem with edge distance here!

Other side....no edge distance issues here either.

Then I bolted on the VS front spar mounting plate.  Amazing that this is all there is holding the VS front spar on the plane.

I then match reamed the top rear spar holes to the tailcone and installed the called out hardware.

Next I match reamed the lower holes and installed the called out hardware in the upper two.

Next I had to machine countersink the bottom holes to receive a flush head structural screw.

Here are the lower hardware in place.

Next I used the rudder hinge bracket as a guide to drill a #30 pilot hole in the whole assembly.

Then I punched it up to #12 for the hardware.

Deburred both sides of the hole.  And installed the called out hardware.

Next I installed the VS front spar bolt.  It is subject to rotation so they have you use a castle nut and a bolt with a cotter pin hole.  I won't do that now since it all has to come apart anyway.

Inside shot of the rudder stop/hinge bracket hardware.  Not enough threads for me showing so I will either go with a thin washer or a longer bolt at final assembly.

A ton of work in this pic!

Monday, May 6, 2019

Mounting the empennage to the tail cone #1

 Got started today with deburring the VS to HS front spar mount.  I still can't believe that this is all there is that holds the VS's front spar to the plane.....  I also fabricated the HS stab front spar mount spacers per the plans.  I used the band saw to cut em out.

 Next I match reamed the VS front spar mount plate to the HS front spar with a #12 reamer.

Next I reamed the top bolt hole to 1/4" full size.

 Then I deburred all the holes.

 HS front spar hole deburring.

 The back side...

 Then I went ahead and started prepping for drilling the HS mount holes onto the tailcone.  I placed the HS on the tailcone with the spacers I fabricated.  I used some straps to ensure the whole thing remains level and can't fall over.


Saturday, May 4, 2019

Tail Cone Riveting Part #8

I filled the bottom of the tailcone with some rigid foam that I had laying around to be able to crawl in there without damaging the parts.

 Since the bottom of the tailcone is not exactly flat, I placed the whole thing on the floor on top of another 3/4" piece of rigid foam.  This all worked very well!



 I bucked and my uncle ran the gun.

 All done!





I then crawled inside and installed the seat belt anchor point brackets.



Finally I bolted together the elevator bellcrank to the battery box/bellcrank mount.  The bolts called out are -5 in length which seem a bit long.  A -4 would work better.