The best reference on time is E's blog
http://rv-14a.blogspot.com/2015/10/
He did an amazing job. I would like to thank him some day, if I get a chance to meet him.
Thank you.
On the right column of my blog are the itemized build times and costs (including
a section-by-section rivet count). If viewing on a mobile device, you'll have to "show desktop version" to see those itemizations. Or you can simply look at
the bottom of my "First Flight" post.
I can't speak to QB construction times. In either case, there is a lot of variation in build times. This is surely due to differences in skill, experience, available tools and space, extent of any priming and/or painting, extent of deburring, professional or self-completed wiring/panel, as well is time tracking methodology.
For example, it took me 611 hours to complete my SB wings. In my case, it was my first kit so a significant amount of that time probably represents a lot of learning on my part, however
others have reported as few as 285 hours. You can find a
few older threads on the topic of RV-14 build times.
A little more about build times...
I videoed nearly my entire build (representative images from that camera, in my original and final shops, are below) so I have an extremely accurate in-shop time accounting. However time spent studying the plans, online resource consultations, phone calls,
etc. were not accounted for. And, how does one account for the time someone is helping you? Do you double-count those hours?
I decided to log separately the time that other people helped me. In my case, I had 599 hours of help from other people. But I didn't apply those hours to any one specific category (wings, fuselage,
etc.) primarily because, in many cases, my helper and I were working on different things and I wasn't interested in itemizing out those hours so precisely. So when asked, I state that it took me 2,196 hours with an additional 599 hours of help to go from first kit to airworthiness inspection.
When considering quoted build times, realize that there are a lot of variables to explain the variability.
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Pics from my camera that I used to video my entire build. The first pic is when I was building only in a basement. The second was when it outgrew that shop and moved to a garage. it's really neat to compress the ~2,200 hour video into a minute to see an airplane appear out of nowhere.