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THE WORLD’S only wooden supercar, known as the "Splinter”, is a high-performance sports car that is estimated to be 90% wood. Fuelled by a lifelong desire to design and build his own car and inspired by a WWII airplane called the de Havilland Mosquito, designer and builder, Joe Harmon, from Mooresville, North Carolina, spent roughly nine years working on the Splinter with the help of his team. The Splinter began as a graduate school project at North Carolina State University and has continued since. Joe said that the goal was to use wood in the construction of the car in every possible application - wood is our only naturally renewable building material, it is biodegradable and takes a small amount of energy to produce. Also, according to Joe, wood has a better strength-to-weight ratio than steel and aluminium. Every wooden part of the Splinter is made from composite construction. Even though the car is not comfortable and may be impractical, Joe said that the goal in creating this car was to explore new ideas and perceptions of wood.

Videographer / Director: Christopher Brown
Producer: Frazer Randalls, Rafaela Kuznec
Editor: Ian Phillips

Category

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Motor
Transcript
00:01I've wanted to design and build my own car for my whole life, and we thought
00:06building it out of material like wood would present an interesting challenge.
00:11The world's only wooden supercar.
00:24Just a ton of work, a lot of blood, sweat, and tears went into it. Obviously a lot of
00:28sandpaper as well.
00:31I'm Joe Harmon. I am the designer and builder of the world's only wooden supercar.
00:40I've wanted to design and build my own car for my whole life, and we thought building
00:45it out of material like wood would present an interesting challenge.
00:54Wood is our only naturally renewable, totally biodegradable building material. It has a better
00:59strength to weight ratio than steel and aluminum, and it's just a beautiful material. It's a lot
01:04of fun to work with.
01:09I think there are roughly 20 different species of wood in the car. We try to stick to North
01:13American hardwoods. From an engineering standpoint, we all consider to be interchangeable based
01:17on their density and strength. Walnut, cherry, maple, birch, hickory, ash. Most of the chassis
01:26is birch and maple. Wheels are walnut. The rest isn't mixed back. So interior-wise, all wood steering
01:38wheel. There's no metal in that steering wheel anywhere whatsoever. It's nothing but wooden glue.
01:44A shaft that you see coming through the middle is the gear shift. The transmission's behind the
01:49engine in this car, and the shift linkage goes over the top of the engine. Wheels were a ton of
01:54work.
01:54They're the most complicated part. Wood's very strong, but it's also soft, so when you come to these
02:00hard points of metal, you need to be able to spread that load out over a larger area.
02:09The splinter was built over a nine-year period of time. When I was in graduate school, I was lucky
02:15enough to where my dad would pay for me to eat and go to school and live, so I didn't
02:19have any other
02:20responsibilities other than to work on this car. It's a ton of work. Pain, suffering, and sanding.
02:27As far as I can remember, the tires are the only completely off-the-shelf piece of this car.
02:33I knew it would be a ton of work. I get asked the how many hours did this take question
02:37a lot.
02:38I tell people 20,000 hours. It was a very slow, very time-intensive process, thinking how'd I get
02:45myself into all this. It ends up pulling everybody that's close to you into a project like this.
02:51I lived through the 10 years of building it. That was quite an experience. It's still completely
02:57relevant today and looks totally different from anything else I've ever seen. It was a lot of blood,
03:03sweat, and tears for sure. Mostly tears on my part.
03:11It has a seven-liter small block V8. We think it makes about 650 horsepower. It has a six-speed
03:17manual
03:17transmission, airbag suspension at all four corners so we can adjust the height. It's a very, very low
03:22vehicle and we have to get it on and off of trailers a lot, so being able to pick it
03:26up and down helps.
03:28It's hot, noisy, uncomfortable. You can't see out of the back of it. You can barely see out of the
03:37front of it. You're in a really, really low driving position. That's kind of part of what makes it raw
03:43and makes it exciting. It's not exactly the most practical vehicle in the world. It's not very good
03:51as a grocery getter. The fastest I've been in the vehicle is probably 30 miles an hour. I'm sure it
04:05has a top speed. I have no idea what it is. With the weight and the aerodynamics and the power
04:10that it
04:11makes, you know, maybe the engine can push this thing to 200 miles an hour. I don't know. I feel
04:17fairly certain that it will never happen, but it's probably theoretically possible. The car was
04:22really built as a building and engineering exercise to show people that you could do it.
04:28Heat is a concern. What'll happen is if this car gets too hot, it'll start letting go and the panels
04:33will get droopy and they'll fall apart. Every vehicle can catch on fire fairly easily. It just so happens
04:40with this one. There will be less left over at the end if it does catch on fire.
04:52When I look back on it, I think about all the good times I had. The coolest thing about the
04:56splinter
04:56for me was getting to go through this process and realize that I've got the absolute best friends and
05:01family that anybody could ever ask for. How many splinters did I actually get during the build? I lost
05:07track. I got my fair share for a lifetime's worth.
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