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-   -   RV-3B Dave's in Colorado (https://vansairforce.net/community/showthread.php?t=85658)

ppilotmike 11-15-2013 12:50 PM

Quote:

Originally Posted by David Paule (Post 826239)
Incidentally, it was for the fun of sorting through these issues that I am building the slow-build RV-3B. Gotta say I'm getting my money's worth.

Dave

You're sick! ...says the guy building a slow build 10. :D Not the same ballpark, but definitely the same sport...

AlphaCharlieBravo 11-15-2013 05:59 PM

Nice Mike!
A Pulp Fiction reference :D

David Paule 12-12-2013 09:10 PM

Santa Came AGAIN!
 
Second time in two years, I like the consistency. For the last event, refer back to post #31.

Here's Santa's sleigh and the green reindeer out in front of my hangar today:



Once we opened the door and hauled the goodies to the back of the hangar I got this photo of the Finish Kit - that's the fuselage kit to the left, and the wing box in the far background against the wall:



I've lately been ordering the sole-source items and this, the Vetterman exhaust and a few other things are on the list. Since I ordered a Todd's canopy, the canopy wasn't included as part of this finish kit. Neither was the spinner nor the tires. Why not the tires? Simply because I won't need them for at least a year and I can get them any time and they'll be fresh.

There is no FWF kit for the RV-3B, but I did include a few of the known needs, like the baffle kit and the FAB.

Initial impressions are that the fiberglass work is decent (don't know how it'll fit) and the kit for the baffles is new-style: pre-punched, trimmed, bent and with step-by-step instructions. Super!

Dave

rockwoodrv9 12-12-2013 09:17 PM

Pre Punched! Holy **** Dave, are you selling out!! haha!
I am finally back in Colorado for the holidays. I hope to get down to Denver to say hello to everyone.

I have just about settled on the Skyview for my panel. I really like what I read about how the GX3 autopilot is very nice, but the Skyview still looks like it fits me better.

Have fun and keep posting pictures of what real build is! Talk later.

David Paule 01-06-2014 09:10 PM

Leading Edge Skins, Still
 
Both tanks are now clecoed and still in place. I haven't unclecoed them yet. Here's the right tank:



The baffle will get drilled after I remove the tanks from the wing. Didn't want to risk damaging the spar.

I've started on the outboard skins. Having the tank skins inboard lets me match them. Since the outboard ribs don't extend to the leading edge (they stop an inch aft) I made some wooden braces to prevent pulling the leading edge down too far.



The vertical slot is to let me slip them over the threaded rod that hold the nose ribs in place. This way I can use one set on both wings.

Initially, I used the Howe Fittings and basically the same process I'd used on the tanks to hold the outboard skins in place. But no joy. For some reason, when I used them, the leading edge would consistently be about 1/2" below the leading edge of the tank skins. After a lot of head-scratching I determined that not using the Howe Fittings seems to work, and here's where I left the left outboard skin at close of shop tonight.



I'll have to untape the Howe Fittings before proceeding. Duct tape - builder's friend.

longranger 01-06-2014 10:34 PM

David,

I like your rib stiffeners! I'm going to copy that if/when I ever pick back up on my HRII project.

ppilotmike 01-07-2014 09:29 AM

I'm now on the 3B wagon too..
 
Quote:

Originally Posted by ppilotmike (Post 826424)
You're sick! ...says the guy building a slow build 10. :D Not the same ballpark, but definitely the same sport...

Well Dave,

As you know, I've recently aquired a partially completed RV-3B kit, which I plan to work on alongside my 10 build. I guess whatever "sickness" you have is apparently catching...;)

David Paule 01-12-2014 08:46 PM

I went back to the right-hand outboard skin and, using the Howe Fittings and a batten, got it to fit pretty well, so I went and drilled that skin to the ribs. These holes are drilled blind so I earned a few more gray beard hairs here.

Following that, I had the spice strips, that go between the tank and that outboard leading edge skin, in place and drilled to the ribs. I went ahead and drilled them to the tanks, then removed and deburred and dimpled them.

Here I'm trial-fitting a nutplate to the left one. Van's calls them "plate nuts" but as far as I know, no one else does. In addition to the cleco clamp, a #30 cleco does a nice job. Better, in fact, and that's what I'll use when I drill them, I think.



Dave

David Paule 01-21-2014 03:31 PM

Past Leading Edge Issue
 
Just wanted to mention here that I'm finally past the leading edge shape issues that I've had. Now I can move on with the wing. I've got a few related things, trimming edges, mostly, and then I'll be able to do something NEW for a change.

To David Howe - thanks again. Your advice was hugely helpful.

Dave

David Paule 01-28-2014 09:16 PM

Light Weight Tank Stiffeners
 
The tank stiffeners on the RV-3B wing tanks are 3/4 x 3/4 x .032 angle. I'm now making the parts that go inside the left tank, starting with these. I made a set that's mostly stock (I beveled the upper corners) and they weighed 153 grams for the set. These are the top batch.

Then I made a set from .016 that I bent up, adding a short flange to the top. With this flange and in spite of the thinner material, these have the same stiffness as the stock version. These weigh 99.0 grams and are the bottom set.



The difference is nearly 2 ounces per tank. Worth going after.

Dave


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