Home » In Honor Of Boxing Day, Here’s Tatra’s First Boxer-Engined Car

In Honor Of Boxing Day, Here’s Tatra’s First Boxer-Engined Car

Cs T11 Top
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Happy Boxing Day! In the British Commonwealth countries, this is a holiday that commemorates the practice of giving a box of stuff – presents, money, food (which maybe was leftover food from the Christmas bash the day before), unwanted gifts, whatever – to your employees or servants or people in need, whether you employ them or not. I mean, I hope no one you employ in your stately manor is in need, because if so, you’re a monster.

Boxer is also a nickname for a type of engine! I’m sure you knew this already, but I need my flimsy pretexts for these posts, thank you. And, since boxer is a kind of engine here on Boxing Day, let’s take a moment to reflect upon a very interesting boxer-engined car, the Tatra 11.

Vidframe Min Top
Vidframe Min Bottom

Before we do that, though, let’s clear up one thing really quickly: while all boxers are flat – as in horizontally-opposed – engines, not all flat engines are boxers. The key defining trait of a boxer engine is that pairs of pistons move in opposing directions, back an forth, sort of like the movement of boxers whaling on each other, which is where the name comes from.

Cs Boxer 180 Flat Diff
Image: Jason Torchinsky

Flat, non-boxer motors, which you can think of as 180° V engines, have pairs of  pistons that move in the same direction, because they share a crankpin on the crankshaft, which boxer engines do not. You can see the difference in that diagram above, which I made for an article on the Old Site back in 2018, and I’ve found have been stolen and used in at least one video on the subject. So I stole it back.

Oh, and you know the Ferrari Berlinetta Boxer? It doesn’t actually have a boxer engine. It has a flat, 180° V engine!

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Image: Ferrari

What a liar!

Anyway, let’s get to the Tatra 11, which has a true boxer engine, a 1056cc flat-twin making about a dozen horses. Built from 1923 to 1927, this was Tatra’s first real passenger car (as opposed to a truck) and was brilliant designer/engineer Hans Ledwinka’s first use of many things that would become Tatra staples: air-cooled engines, backbone chassis, and swing axles.

Cs T11 Lane
Photo: Lane Motor Museum

Ledwinka was working for Steyr at the time he conceived of the car, with the goal of making a genuinely affordable and usable people’s car. Steyr wasn’t interested in that at the time, so he went to Czech carmaker Tatra to see his vision realized.

Cs T11 Brochure
Image: Tatra

The T11 was brilliant, and I think the chassis design is the real marvel here. Look at this thing: the engine’s lower crankcase is a stressed member, with suspension parts bolted to it:

Cs T11 Chassis 1
Image: Wikimedia Commons

…and around back you can see the then-revolutionary swing axle, sprung with a transverse leaf spring, giving independent rear suspension:

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Cs T11 Chassis Rear
Image: Tatra

Also, note how the tube that houses the driveshaft forms the main backbone of the chassis. This is a brilliantly minimal design, and was a big part of why the car was so light and efficient.

Being light and efficient meant it was a decent racer, too, taking first in the 1100cc class at the Targia Florio in 1925, against much bigger and more expensive competitors!

Cs T11 Targia
Image: Wikimedia Commons

I also really like the smooth-nosed look of the T11, a look that continued for other front-engined Tatra models. It reminds me a bit of the old Renault coal-scuttle hoods:

I wonder what year that car is from?

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Actually, based on the year, I guess it’s the Tatra that followed the Renault, but still.

Here’s a great video of one being used as a tractor from 1964! That T11 would have been about 40 years old at that time!

Anyway, have a fantastic Boxing Day or day after Christmas, or just a nice do-very-little day. We’re going to have stories, but not really a full day, if you get my meaning. You just have a fun, relaxing time, how about?

 

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Droid
Member
Droid
21 minutes ago

today is also the feast of St Stephen…many (notably, the Irish) prefer it to boxing day.

Andy Individual
Andy Individual
1 hour ago

I’m disappointed. I fully expected a punch buggy theme today.

Scott
Member
Scott
1 hour ago

I knew nothing about this car, so thanks yet again Jason. 🙂

I have seen Tatras though… one or sometimes two Tatra 87 cars occasionally make an appearance at the Best of France and Italy car show at Woodley Park in LA (usually around November I think) and they’re impressive. After seeing them, I like Preston Tucker less since his Tucker seems (to me, an admitted ignoramus) like a fairly blatant rip-off of the Tatra 87. It didn’t help that I got a ‘con man’ as much as ‘rapscallion’ impression of Tucker as portrayed by Jeff Bridges in Francis Ford Coppola’s 1988 movie “Tucker: the Man and His Dream.”

Yes, I know that the Tatra isn’t from France or Italy, but the show also includes many wonderful European cars from various other countries… basically, anything that doesn’t fit in the Queen’s English British car show earlier in the year. These two car outdoor shows are the absolute best ones in Los Angeles IMO, and they’re free to attend, and even parking is free. Dogs are welcome too. 🙂

Additional irrelevant person minutia: in the early 1990s (’92 maybe?) I interned at Industrial Light and Magic one summer back when it was at the original Kerner Optical location in San Rafael. Back then (before some later incidents) interns were treated pretty nicely: we could eat in the dining room up at the ranch whenever we wanted, and they even gave us a fairly comprehensive tour of the whole ranch, including the ‘vault’ which held all sorts of original props and film and stuff from ILM, Lucas Arts, etc… as well as George Lucas’ personal collections. So, in addition to seeing Michael Jackon’s sweat-stained ‘Captain Eo’ uniform, and a huge Imperial Star Destroyer (that had pieces of little 35mm slides glued into the backlit windows, including (IIRC) at least one Playboy centerfold) I also saw not one but two Tatras in person for the first time. One belonged to George’s pal and fellow director Francis Ford Coppola, and I don’t remember whether the other one was also his, or maybe it belonged to George. I’d never seen anything like a Tatra 87 before, despite being a car nut for my entire childhood, so I was more impressed by the Tatras than I was by all the Star Wars and Indiana Jones props, costumes, etc…

This was almost 40 years ago, so now it feels like something I just read about or saw in a movie, rather than experienced myself. It was a great summer. 🙂

Last edited 1 hour ago by Scott
5VZ-F'Ever and Ever, Amen
Member
5VZ-F'Ever and Ever, Amen
1 hour ago

the engine’s lower crankcase is a stressed member

It’s the holiday season. All your Members are stressed!

Scott
Member
Scott
1 hour ago

I wanted to maybe make a shamelessly cheap and easy joke about how most of the member’s members aren’t all that stressed due to middle age, but I will refrain from such foolishness as it’s unbecoming to the dignity of this community.

😉

Michael Beranek
Member
Michael Beranek
1 hour ago

Ferrari’s use of the term “boxer” would be a sin for anybody else. Since it’s Ferrari, they get a pass.
But it does remind me of the old George Carlin bit about desk drawers. “You know the desks where it looks like it has two drawers, but really it’s one drawer? THE DESK IS LYING!”

Andy Individual
Andy Individual
57 minutes ago

I still want to know what chairs would look like if our knees bent the other way.

Michael Beranek
Member
Michael Beranek
52 minutes ago

Hmm, I think you will want to visit Family Bros. Pizza in New New York, circa 3006. They bend legs “for free”.

Last edited 52 minutes ago by Michael Beranek
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