Job Offer: Work from home, learn a lot, make up to $400/hr.
Builders:
I will explain the title a little further into the post, but to start, examine the Corvair powered plane below. It is a brand new 3,000 cc Corvair powered SPA Panther, built by Brent Mayo, of Florida. Besides the fact that it is an outstanding example of craftsmanship, read this next part slowly: Brent’s builders log shows that he has a total of only 828 hours of work into the plane, 14 months of build time, and this includes building the whole airframe and the Corvair engine for it, all the way through being ready for his FAA inspection.
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Rachel Weseman wrote at story about Brent’s plane on the Panther website. You can read it and see a lot of great pictures of the plane at this link, it is the second story down: https://flywithspa.com/category/panther/ Included in Rachel’s story is a link to Brent’s builders log, it is a treasure of information and pictures, and it clearly documents how little time it took him to do each of the tasks, and total hours for different sections. The log is inarguable testimony that both the Panther airframe, and the Corvair engine can be built in a very reasonable amount of time.
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Above, Brent Mayo’s Panther LS, powered by a 3.000 cc Corvair. It is a done aircraft, awaiting only it’s FAA inspection. If Brent’s name rings a bell, it is because he was one of the five builders who finished and ran his engine at out first “finishing school” Get a look at this link and spend a few minutes looking at the video of the running engines. Brent’s engine was the first one to run, notice how quickly it starts and runs: Corvair Finishing School #1, Video report.
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OK, get a look at Brent’s builders log, and see that he has 104 hours under the engine category. Note that this includes installing everything ahead of the firewall. If you break out just the part with is assembling and test running the engine, the hours total only 34 for the assembly and 8 hours more for the test run at the finishing school.
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Conceding that any engine needs to be mounted, cowled, have a prop and spinner installed and be wired, then selecting a Corvair and building it for his plane only added 42 hours to Brent’s total build time. Over the years I have seen plenty of magazine articles saying that “choosing and alternative engine adds a year at least to your build.” While that might be so for a poorly supported engine that has never been mated to a particular airframe, it clearly doesn’t apply to the Corvair or installing on the Panther, or the other airframes we have long ago proven it on and support with installation components. The reality is that the decision to use the Corvair, and build it himself, didn’t cost Brent any significant amount of time in his build.
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42 hours is less than 6% of the total of 828 hours invested in the whole plane. But stop and think for a moment, that a Panther is one of the fastest planes on the market to build. There are plenty of other good planes out there, but many of them take more than 2,000 hours to build. If you built the same 42 hour Corvair for a plans built fabric covered plane that took 2,000 hours to build, the engine would constitute just 2% of the build time. So much for the “traditional wisdom of experts” who speak on line and at EAA meetings.
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But lets stop and consider what a builder gets who decides to invest 42 hours gets for his time. First, he knows the engine far better than any guy who just buys some imported engine in a box and bolts it on. Second, there is a great satisfaction in building your own engine. I have shaken the hand of 300 builders a moment after their engine started on my stand. You can literally feel a builders pride in their grasp at that moment, it is a genuine, and it is a moment that doesn’t happen for people who buy engines. These are the two best reasons for any builder to select a Corvair.
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A third reason is the title of this story: Consider for a moment, that Brent’s engine is an absolute first class engine that utilizes nearly every part in in the FlyCorvair and SPA/Panther catalog of parts. I am pretty sure it has more than $10K in parts in it. The next least expensive engine option is probably a Jabaru 3300, and because of exchange rates that engine is actually down in price, near $18K. Rotax and others are north of there, up to the UL-350 somewhere around $30K. They are all reasonably good engines, but just looking at the price vs the 42 hours, Brent saved between $100 and $400 per hour he invested in his Corvair build.
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BTW, the 42 hours isn’t a record. We have a number of people each year that come well prepped to Corvair Colleges, and fully assemble and test run engines in a two and a half day event. Before anyone remotely suggests such engines don’t involve learning or are less than perfect, let me say that I have seen these engines built and run, they are first class, and I was there when they were assembled and can attest that these guys were motivated to do their homework and learned a lot. Open minded people with a plan happen to write a lot of success stories in experimental aviation.
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Before anyone gets too upset or comes back with other calculations or alternatives, let me flat out say that people should use/buy/build which ever engine they like, and it has always been my policy that Corvairs are not for everyone, and I don’t portray them as such, I just say they are a very good option for the right builder. I have owned, built and flown behind many different engines, there are reasons for the right builder to own any of them. The whole purpose of the story is just to illustrate that you can build a Corvair is a short number of hours, it isn’t a significant portion of the total build hours, even on a really quick building plane like a Panther, in comparison to other popular engines it is economical, even when you select the highest end build, and the biggie, that there is a lot to be said for the learning and accomplishment of building an engine yourself.
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There is nothing wrong with a guy who has had a Corvair in his shop for years, and he enjoys tinkering with it. Building the motor isn’t a contest, it is a group of choices and actions that are supposed to teach you things and provide satisfaction when looking at the completed engine. But know this: I have seen countless guys spend years on internet discussion groups, following people who counsel making all manner of starters, hokey oil systems, and poorly thought out parts, all with the goal of making something ‘unique’ or saving some bucks. Even if that crap worked as well as the stuff we sell and teach people to use, (which it doesn’t) I can still make the case that it is a poor use of your life to spend five years making parts, when better stuff is available that bolts right together in 42 hours, proven systems you can trust. There is nothing ‘unique’ about making one off poorly thought out parts and finding out they cost nearly as much as our stuff, but discovering they don’t fit on your plane, you don’t trust them. This isn’t “unique” at all, people waste years of time and thousands of dollars doing this all the time. Want to do something that will set you apart? Make some smart choices, use proven stuff, build it according to our methods, and go out and enjoy it. In a world of people letting years slide by, deciding that you will not let that happen to you is a unique decision.
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The United States Bureau of Labor Statistics had the following data:
“–Watching TV was the leisure activity that occupied the most time (2.8 hours per day), accounting for more than half of leisure time, on average, for those age 15 and over. “
2.8 hours a day is 1022 hours a year. That is far more time than Brent spent building is whole airplane. At that rate, it would have only taken him 15 days of TV watching to finish his engine. Is there really anything you saw on TV in the last to weeks that would make you feel like Brent did when his engine fired up?
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“There is a combination of simplicity/effort/money that can get a great number of people flying. You can be one of them, and the odds that you will be go up dramatically if you use my experience to avoid every mistake I made and paid for.”
Awesome success story! The Corvair powered Panther is the reason I’m selling my RV-6 Kit and ordering a Panther Kit…