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User Error
Aug 31, 2006
I dont know if we've had a thread on home made jet engines (using an old turbocharger) lately, but they're pretty neat:

http://www.youtube.com/watch?v=OWE0pMnwc94&NR

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User Error
Aug 31, 2006

The King of Swag posted:

I hate to say it but I have been and still am guilty of this (albeit at slower speeds), although I always do it in places that rarely have anyone on them and never leave my lane. Matter of fact, I recorded a slower short run once just to see how well a camera mounted on a tripod in the car (without actually being mounted to anything) would work: cut-out link

Turns out it works, although a little shakey. My biggest problem ended up being the head of the tripod swerving on really tight turns and I couldn't tighten it enough by hand.

As I said though, this is extremely stupid. I only averaged about 50mph and hit a maximum of about 65 in my video, and I've gone faster on that same road on different runs, but that is still far faster than is safe for that road or any mountain road.

That said, while you take your life in your hands whenever you do something like that, you shouldn't feel bad if you hurt someone who is oncoming in your lane, as I've never seen a 2-lane mountain road that didn't have signs every ten feet about no passing. Ever. Passing when you shouldn't is a pet peeve of mine along with not using your blinker.

Edit: I removed the url simply because I don't want anyone to think I'm proud of it, which I'm not. I just like the twisties too much for my own good :(

Second Edit: Reading the comments left by that guy, apparently he was using km/h instead of mph so he was actually averaging about 50mph the whole time. Seemed faster than that, but apparently not.


I used to do stupid poo poo like that in my lowered 3rd gen Maxima. I had a close call with an oncoming truck when I misjudged a corner and went over the double yellow which scared me straight. I used to push my old maxima to 80+ on a rather twisty road with a 50mph limit. I've taken my Miata along the same road a few times, but I usually keep it under 65.

User Error
Aug 31, 2006

Phone posted:

Their overall velocity is the combination of the horizontal speed and vertical speed. Think of vector addition.

oh god a use for physics!

User Error
Aug 31, 2006

thealphabetsez posted:

If the rear rotor halted completely you would have a much worse outcome. There is a rail around the rear rotor to prevent it from coming in contact with the ground -- watch the slow-mo.

You can see the tail rotor stop in slow mo.

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