---------------------------------------------------------- RV7-List Digest Archive --- Total Messages Posted Mon 09/11/06: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:10 PM - Re: RV-7 F-770 forward side skin 'pucker factor' question (Don Hall) 2. 10:45 PM - Re: RV-7 F-770 forward side skin 'pucker factor' question (Dan Checkoway) ________________________________ Message 1 _____________________________________ Time: 10:10:58 PM PST US From: "Don Hall" Subject: RE: RV7-List: RV-7 F-770 forward side skin 'pucker factor' question --> RV7-List message posted by: "Don Hall" The directions get more vague with every step eh? I'm just a few steps ahead of you. I'm about to rivet the side skins into place. I don't have any "pucker", but I think I know what you're referring to. Where the bend in the side skin begins, there's essentially about a partial #30 size hole drilled at the corner likely to discourage cracking. I think there's an inevitable amount of daylight that will be visible through that "hole" at the intersection of the bottom skin, side skin and 623 rib. In my case, I feel confident that it's all fitting like it appears it should, and I do expect some daylight at this point. I expect it will look a little better after riveting, so I'm reserving final judgement. I might plunk a dab of proseal or rtv in that area from the inside. Here's a pic of my fuse from when I was originally doing the bend. Note that I smoothed out the two small sharp points in the side skin at that intersection. I'll take another pic of that intersection after I rivet it. (Might be a few weeks out due to imminent biz trip...) http://donka.net/gallery/view_photo.php?set_albumName=rv7fwdsection&id=DSC06 382 ****************************************** Don Hall N517DG (registered) rv7 fuselage http://rv7.donka.net ****************************************** -----Original Message----- From: owner-rv7-list-server@matronics.com [mailto:owner-rv7-list-server@matronics.com] On Behalf Of Charlie England Sent: Sunday, September 10, 2006 1:21 PM Subject: RV7-List: RV-7 F-770 forward side skin 'pucker factor' question --> RV7-List message posted by: Charlie England --> Greetings -7 fuselage builders, I've got a glitch with my F-770 forward side skins. With the mid section belly skin clecoed to the tailcone @ F706, when I add the F770 side skins & cleco them to the F704, 705 & 706 bulkheads I get a 'pucker' in the bottom edge of the skin between the rear spar carry-through & the change in angle of the bottom skin where the F-770 curved portion starts. This is where the 770 would (I assume) get riveted to the flange of the F-623 rib that lies flat in the belly skin on each side. Both sides do this. I've removed one skin & rolled the bottom corner to fit the tailcone, & it still has the 'pucker'. With the 770 clecoed to F705 bulkhead there is about a 1/4" gap at midpoint between the rear spar & the point at which the curved transistion begins. Again, one side has been curved to transition around to the belly & the other is still unbent; both exhibit the same bulge. Related question: I see in my instructions one note that says 'don't install the F-623 ribs now' but I can't find any instruction to actually install them. Anyone seen that instruction? All I've seen is an instruction to install the forward doubler attach tab for the F-623's. Thanks, Charlie ________________________________ Message 2 _____________________________________ Time: 10:45:02 PM PST US From: "Dan Checkoway" Subject: Re: RV7-List: RV-7 F-770 forward side skin 'pucker factor' question --> RV7-List message posted by: "Dan Checkoway" Don, Pretty sure the bent side skin flap is supposed to lay beneath the belly skin, not sit on top of it. See this photo: http://rvimg.com/images/2002/20021101_bend_in_place.jpg )_( Dan RV-7 N714D http://www.rvproject.com ----- Original Message ----- From: "Don Hall" Sent: Monday, September 11, 2006 10:10 PM Subject: RE: RV7-List: RV-7 F-770 forward side skin 'pucker factor' question > --> RV7-List message posted by: "Don Hall" > > The directions get more vague with every step eh? > > I'm just a few steps ahead of you. I'm about to rivet the side skins into > place. I don't have any "pucker", but I think I know what you're referring > to. Where the bend in the side skin begins, there's essentially about a > partial #30 size hole drilled at the corner likely to discourage cracking. > I think there's an inevitable amount of daylight that will be visible > through that "hole" at the intersection of the bottom skin, side skin and > 623 rib. > > In my case, I feel confident that it's all fitting like it appears it > should, and I do expect some daylight at this point. I expect it will look > a > little better after riveting, so I'm reserving final judgement. I might > plunk a dab of proseal or rtv in that area from the inside. > > Here's a pic of my fuse from when I was originally doing the bend. Note > that > I smoothed out the two small sharp points in the side skin at that > intersection. I'll take another pic of that intersection after I rivet it. > (Might be a few weeks out due to imminent biz trip...) > > http://donka.net/gallery/view_photo.php?set_albumName=rv7fwdsection&id=DSC06 > 382 > > > ****************************************** > Don Hall > N517DG (registered) > rv7 fuselage > http://rv7.donka.net > ****************************************** > > -----Original Message----- > From: owner-rv7-list-server@matronics.com > [mailto:owner-rv7-list-server@matronics.com] On Behalf Of Charlie England > Sent: Sunday, September 10, 2006 1:21 PM > To: rv7-list@matronics.com; RV list > Subject: RV7-List: RV-7 F-770 forward side skin 'pucker factor' question > > --> RV7-List message posted by: Charlie England > --> > > Greetings -7 fuselage builders, > > I've got a glitch with my F-770 forward side skins. With the mid section > belly skin clecoed to the tailcone @ F706, when I add the F770 side skins > & > cleco them to the F704, 705 & 706 bulkheads I get a 'pucker' in the bottom > edge of the skin between the rear spar carry-through & the change in angle > of the bottom skin where the F-770 curved portion starts. This is where > the > 770 would (I assume) get riveted to the flange of the F-623 rib that lies > flat in the belly skin on each side. > > Both sides do this. I've removed one skin & rolled the bottom corner to > fit > the tailcone, & it still has the 'pucker'. With the 770 clecoed to > F705 bulkhead there is about a 1/4" gap at midpoint between the rear spar > & > the point at which the curved transistion begins. > > Again, one side has been curved to transition around to the belly & the > other is still unbent; both exhibit the same bulge. > > Related question: I see in my instructions one note that says 'don't > install > the F-623 ribs now' but I can't find any instruction to actually install > them. Anyone seen that instruction? All I've seen is an instruction to > install the forward doubler attach tab for the F-623's. > > Thanks, > > Charlie > > >