Tip Up Hinge Blocks

captain_john · Post by **captain_john** » Sat Jan 22, 2011 6:25 am

Hey guys, soooo something that I didn't expect:

I got the hinge blocks in and clecoed the front skin on and LOW AND BEHOLD...

The damn goosenecks don't fit into their slots anymore! Oh TREAT!

Now Mikey, I see that you had fits about this too. How much needs to be trimmed away and was that amount even and square?

Should I hack off a generous amount with the hacksaw or just sand slowly with the belt sander?

By looking at it, it seems to need almost 1/8" of material removed in order to fit.

Tips? Clues? Experiences?

CJ

hydroguy2 · Post by **hydroguy2** » Sat Jan 22, 2011 8:06 am

yep, i recall cursing that too. I don't remember sawing anything but might have. also beware that canopy will fit different everytime you out it on and take it off.

MachineMan · Post by **MachineMan** » Sat Jan 22, 2011 9:56 am

Measure the thickness of your goosenecks (mine measure .255)

If you made the C-619 from .250 stock, you will have .005 of interference which will make for a very snug fit, you will have to chamfer the fwd edges of the goosenecks to get them to fit in.

It may seem tight getting it in there but once assembled it will work buttery smoooth.

Thats just what I did...

Build on.

Vlad · Post by **Vlad** » Sat Jan 22, 2011 12:21 pm

captain_john wrote:

Tips? Clues? Experiences?

CJ

Tip - patience
Clues - no
Experience - low to moderate

Couple three years ago I completed this step. It was very tough and very time consuming. I remember I put it on and off dozen times before I got the "why". All structure has a play when clecoed but as soon as you figure out which way it "plays" you adjust accordingly. Gooseneck didn't fit perfect either and I was filing them by hand several times to fit.

Post by **bullojm1** » Mon Jan 24, 2011 9:16 am

CJ-

I don't remember changing the thickness or size of the blocks. What I did end up doing is filing down the front of the tip-up canopy goosenecks to help them get started. It is a real pain to get the frame started in the UHMW blocks. What I also did was install the tip-up frame into the blocks before I clecoed on the top forward skin. That helps a lot too.

The whole tip-up frame is something I wish Van's or a third party would redesign. I ended up with a nice 1/4" gap between my forward skin and the forward canopy skin - any less than that would cause the skins to catch on each other. I am going to do some glass work when it warms up to make it look much more acceptable, plus to keep the possibility of water coming in when on the ground or in the air.

Good luck with your canopy frame CJ...You're gonna need it!

Brantel · Post by **Brantel** » Mon Jan 24, 2011 9:44 am

I did the same. They will go in there as is but you must make em go. Once they start, it will go more easily. I would not cut em back as this will end up being sloppy after they break in.

I love the tipup idea but like Mike sez, this thing needs a redesign!!!! Something similar to the RV12 should work much better and be much easier to seal up.

cjensen · Post by **cjensen** » Mon Jan 24, 2011 10:11 am

bullojm1 wrote:The whole tip-up frame is something I wish Van's or a third party would redesign.

Brantel wrote:I love the tipup idea but like Mike sez, this thing needs a redesign!!!! Something similar to the RV12 should work much better and be much easier to seal up.

+2!!

hydroguy2 · Post by **hydroguy2** » Mon Jan 24, 2011 12:42 pm

Love my tip up....absolutely hated fitting and building it. I still haven't got it to seal on the sides. I would have paid plenty more for a lid that fit out of the box

pazmanyflyer · Post by **pazmanyflyer** » Mon Jan 24, 2011 1:04 pm

I've been thinking something like "What about a carbon fiber molded lid i.e. Lancair"
Has anyone thought about something like that? Just throwing it out there.

Carlos in Arizona
Building RV7 - N537TC reserved

On 1/24/2011 10:42 AM, RB Lists - RV7 wrote:

Love my tip up....absolutely hated fitting and building it. I still haven't got it to seal on the sides. I would have paid plenty more for a lid that fit out of the box

Brian
Townsend, MT

rivetbangers.com - Discussion topic http://www.rivetbangers.com/forums/viewtopic.php?p=36293#36293

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hydroguy2 · Post by **hydroguy2** » Mon Jan 24, 2011 1:23 pm

I've been thinking something like "What about a carbon fiber molded lid i.e. Lancair"
Has anyone thought about something like that? Just throwing it out there.

Carlos in Arizona

where do I send the money?

N155RE · Post by **N155RE** » Tue Jan 25, 2011 8:57 am

Good to see your working on the canopy John.
I just chamfered the front edges as well, it gets easier to install as time goes on.

cjensen · Post by **cjensen** » Tue Jan 25, 2011 9:12 am

to RB Rob!!

N155RE · Post by **N155RE** » Tue Jan 25, 2011 10:07 am

I've been lurking for a while and working on my RV7a for even longer. I started building in April of 2002 when I had more time than money. Now it seems that its the other way around, throw in a couple of kids you know the story. With work a little slower I hope to make the final push to completion. I have the panel to do, the engine and FWF to complete.

cjensen · Post by **cjensen** » Tue Jan 25, 2011 2:18 pm

Very cool! Throw up some pics to the board when ya have a chance! Love to see your project!

Vlad · Post by **Vlad** » Wed Jan 26, 2011 7:21 pm

N155RE wrote:I've been lurking for a while and working on my RV7a for even longer. I started building in April of 2002 when I had more time than money. Now it seems that its the other way around, throw in a couple of kids you know the story. With work a little slower I hope to make the final push to completion. I have the panel to do, the engine and FWF to complete.

Welcome from another long time lurker Rob! I started in 2006 and still have more time then money . Ready for the airport now waiting till snow melts.

captain_john · Post by **captain_john** » Wed Jan 26, 2011 7:56 pm

Rob, Good to see you here. I am looking at engines now. Need to get this in the air!

CJ

captain_john · Post by **captain_john** » Fri Jan 28, 2011 4:41 am

OK, Back on track here...

Just so everyone knows, it seems that these hinge blocks do need trimming in order for the tangs to fit in. Here is a pic of Mike's project where I am talking about:

(Mike, why is your pic not coming up?)

(The pic is on this page: http://www.rvplane.com/?categoryid=5&dayid=533 )

I found it best to trim the outboard (thinner one) urethane block based on how my skins weren't fitting. It was difficult to get the sides of the forward skin all the way down and clecoed in place.

All set now! Passed that hurdle!

Thanks all!

CJ

hydroguy2 · Post by **hydroguy2** » Fri Jan 28, 2011 7:50 am

Don't worry CJ,...there will be plenty more frustration while dealing with the canopy.

cjensen · Post by **cjensen** » Fri Jan 28, 2011 8:51 am

hydroguy2 wrote:Don't worry CJ,...there will be plenty more frustration while dealing with the canopy.

Ain't that the truth!! I'm helping my friend Ben with his, and we are both SICK AND TIRED of it!!

Second time around for me ain't no betta!

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