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MYTHBUSTERS 6/8: "Fixing a Flat"

Christopher

Writer
Admiral
Fixing a flat: A pretty basic "try a bunch of things one at a time" myth. Stuffing the tire with straw was an interesting solution. The branch ski was an interesting idea but crudely executed; there's got to be a way to make it more practical. The Flintstones-style log wheel was obviously the most successful, but the least plausible as an "improvised" fix, because it only works if you're prepared in advance with the proper power tools and really long bolts. And as Jamie showed, it's not that hard to destroy if you put your mind to it. In fact, all these fixes required some access to tools and materiel beyond a basic tire-changing kit, like a penknife and a bale of hay, or the ropes for attaching a branch. It seems simpler just to drive on the flat.

The urban fixes were a bit odd in terms of the initial scenario -- why would calling a mechanic not be an option in the city? Is our hypothetical motorist involved in some criminal activity and needing to keep a low profile? Anyway, the main issue with both the bare rim and the manhole cover seemed to be lack of traction, so that got me wondering: what if they wrapped the rim in duct tape?

And oh, man, they really scratched up that poor runway.


Flaming reel: Okay, it was obvious the viral video was faked, since there was a cut before we saw the flame and since the camera operator went right to shooting the reel, indicating foreknowledge rather than being caught by surprise. A situation like that, if even possible, would surely be rare enough that one couldn't seriously expect it to happen in advance or arrange for it to happen while you were taping. So clearly there was some pyrotechnic trickery involved, at least in the creation of the video.

As for the broader myth, at first I wasn't clear on what part of the fishing reel was flammable, but that was answered when they mentioned the lubricant. Interesting that, even with a flammable lubricant, they couldn't get flame from friction heating alone.

That was a weird vehicle that they used at the end there. A motorcycle sidecar without a motorcycle? And designed so that there has to be a second person clinging precariously to the back as a counterbalance, just hanging on for dear life at nearly 200 MPH? That just doesn't seem like a good idea.


Both myths this week involved spending a lot of time at the Alameda runway. Maybe they should just move there. :lol:
 
Every time they go there I have to say "Alameda" in Chekov's accent to my wife. She grows weary of it. :lol:

The substitute tire myths were interesting experiments, but, like you said, unbelievably impractical unless you happen to have in your trunk a 2" hole saw, a 5/8" drill bit 15" long and a power drill, an acetaline torch, a chainsaw, 10 feet of rope....
 
Something I noticed, their "test car" was a Ford Crown Victoria which is a rear-wheel drive car so it would need both its rear wheels in somewhat operable conditions for the car to move forward so that's probably why the treebranch/sled idea wasn't stellar for that test they should have moved the flat to a non-drive wheel.
 
The Flintstones-style log wheel was obviously the most successful, but the least plausible as an "improvised" fix, because it only works if you're prepared in advance with the proper power tools and really long bolts.

And the craftsmanship and knowledge how to drill the holes exactly enough for the wheel to fit on the axle. It was pretty cool, but not plausible that anyone could do that imo.
 
I really wish one of them had yelled "Yabba dabba doooo!" during the wooden wheel test.
 
via reddit: :lol:

B07H1.jpg
 
Whenever they do a viral video myth, I tend to start off thinking the video was faked in the first place, and there's no point in even trying.
 
Maybe they could look into whether Canada is backwards in time or something to explain why we're months behind with the new eps. The last new ep of myth busters on here was two weeks ago and that was the was the walking/running on water.
 
via reddit: :lol:

B07H1.jpg

Nice:guffaw:

Just me or is Kari the sexiest woman on TV? She rather reminds me of Kayleigh from Firefly, right down to her parasol.

Watched the one tonight where they try to cut the machine gun barrel with the samurai sword, if they'd used the BAR (Browning Automatic Rifle) it might have worked, it has a much thinner than the Browning .30cal or the Tommy gun
 
There was no Kayleigh on Firely. There was a Kaylee, however.

And yes, Kari is quite pleasing in many ways.

Last night's episode was fun, as I said above I think their using a rear-wheel drive car had an impact on some of their solutions if the drive wheel can't get a grip then the car isn't going to get much forward momentum. I guess one could argue the urban myths could be for situations where you have a flat and it's late at night and the nearest tire shops are closed or you simply don't have the cash to get the tire fixed. But using a manhole cover isn't practical by any stretch. It seemed mostly just like a fun myth but would've been nice to see them use more practical, real-world, solutions. The tree stump was far from that.

The reel fire/viral myth was just fun but a waste and I thought it odd that bike-thing needed a person to just sort of hang onto the back of it as a "counterbalance."
 
I think that car had to be front-wheel drive, because the wheel with the branch-ski on it didn't turn at all when the car went into gear. I assume the wheels are solidly fixed to the drive shaft, so if it were rear-wheel drive, that wheel would've spun and pulled on the ropes, probably dislodging or breaking the branch. But the wheel didn't move at all, yet the car moved forward. Also, if it had only been the right rear wheel driving the car, presumably the car would've moved in a circle rather than straight forward. I just don't see how it could possibly be anything other than a front-wheel-drive car, regardless of what make and model it appeared to be.
 
That was Ford Crown Victoria which is a rear-wheel drive car. It may have limited slip differential which only spins the wheel that has traction, which of course the wheel on the skid would not have. That the car was so hard to control with only one wheel on the ground suggests this may be the case.

But the Crown Vic is a rear-wheel drive which makes them great police cars (well, their Police Interceptor counterpart) as cars with rear-wheel drives are more suited for high speeds and accelerations.
 
So I hope I wasn't the only one half-expecting Jeremy Clarkson to show up at the end to tell Adam and Jamie why their ideas were stupid and that his was so much better?
 
The "viral video" flame was clearly CG so that was immediately a waste of time. The tire thing was more interesting but not a great 'myth.' Maybe a better show next week.
 
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