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Quick Build fuselage and what I learned, so far!

 
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billz



Joined: 08 Jul 2009
Posts: 26
Location: Clinton, New York

PostPosted: Thu Jun 16, 2011 5:02 am    Post subject: Quick Build fuselage and what I learned, so far! Reply with quote

Well, I’ve worked through most of the fuselage quick build “issues”. Although the quick builders did a ton of work and in general, the work is great, there were a few minor issues that needed attention.

1. I finally decided to remove the landing gear fittings, allowing inspection of the forward floor area. What I found was mixed. First, there was nothing under the forward floor except the remains of the temporary rivets and few metal shavings. Nothing that was worth the trouble of removing the landing gear fittings! It did satisfy my curiosity and allowed me to spray some self etching primer in that area. (BTW, It is not possible to totally remove the floor panels since the side panels are installed and get in the way. I could lift the rear edge enough to conduct a thorough inspection and prime.) I decided not to add insulation under the forward floorboards due to concerns of possible moisture accumulation and future corrosion issues. As most of you have stated, removing the landing gear fittings is a major pain! Many of the bolts required pry bars, some bolts were bent and all were damaged to the point that I replaced all the hardware. I found the mounting holes were never drilled properly, (as described in the instructions). After re-working the mounting holes the mounting bolts can be installed with only minor force.

2. The F-1005-R/L brackets were fastened to the F-1005C-R/L bulkheads incorrectly with AN470 rivets rather the AN426 rivets. I removed these rivets, countersink the holes and install the correct rivets. The rivets on the forward door opening were also incorrect and required replacement.

3. The F-6122-1 Tri-Gear Brake Bracket was installed incorrectly with the flange facing the outside, rather the inside of the fuselage. I needed to remove the bracket to install the parking brake mounting bracket, anyway, so that wasn’t a big deal.

4. The F-1051J Scat tube support was installed at the wrong location. Rather than being located 12 21/32 in. from the reference line, it was installed 16 ¼ in. from the reference line. This moves the Scat tube support too far forward and does not provide the intended support. I moved the bracket back to the correct location and put short bolts and nuts in the holes to fill them.

5. Page 27-4 (fig 2) calls for the vent DL-10 (2.4deg) to be installed on both sides. These were installed with the incorrect orientation causing the heat duct to be jammed together, at some weird angles. As it turns out, it was better to have these out of the way (per plans) for installation of the brake lines.

6. Many bushings were not installed and not included in the parts shipped with the kit. There were none of the following bushings installed. (SB 625-8, SB 437-4, SB 625-7, SB 750-10) (Apparently, they were not included in the parts bags because it was assumed they were installed during the quick build.) Van’s is sending me a package with the missing bushings.

So now, a week later, I’m through the pain of inspecting all the quick build work and on to better things. In hindsight, I’m glad I removed the landing gear fittings, if only to make sure the mounting bolts are not damaged. I know they’re drilled correctly, torqued correctly and not damaged. At least not until my first landing! Everyone has to do what works for them. This is what I learned, along the way. Happy building!


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dhmoose



Joined: 22 Nov 2010
Posts: 29
Location: Portland, OR

PostPosted: Fri Jun 17, 2011 10:59 am    Post subject: Re: Quick Build fuselage and what I learned, so far! Reply with quote

Bill, I couldn't agree more. I found the exact same issues on my build and have addressed each of them the same as you did (although I did overlook the scat tube support measurements). There were a few other issues to keep a close eye on and the entire process confirmed the need to trust but double check everything. Thanks for the post. I think it'll help others who are confused about how to go about the QB dis....I mean....assembly ;
-David


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David Halmos
RV-10
Flying!
Portland, OR
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