What is the cheapest way to get from 0-62 in sub 4 seconds?

[_g_]

On the changing for the motorbike - for the first couple of weeks in my previous job I came in by bike and didn't tell anyone.

Nicely polished black boots and most importantly - a road crafter suit (full armoured suit, zip right the way up, comes on and off in 30 seconds or so). Stuffed all the bike gear in the panniers.
Sure, it wasn't quite the level of suit - but if I'd kept a suit jacket at work, I'd have been fine too.

I couldn't be doing with a commute in a reasonable sized town/city NOT on a bike. Though, I was looking to move closer to work as it still seemed too long so timed the journey in - was actually 13 minutes on the bike. Easily 45 for the same journey in the car.
Oh and you get the chance to test your acceleration a lot more, as you're always at the front of the queue .

[Lordbenny]

Liquid Knight said:

I honnestly hadn't considered rollercoasters as they are boring.

You've not been on Stealth it take it.

0-81mph in 1.9 seconds

The acceleration literally takes your breath away, no mode of transport comes close to the feeling you get on Stealth, it's almost worth in extortionate entrance price on its own!

http://www.youtube.com/watch?v=FUSflsrBtqk

[Liquid Knight]

Lordbenny said:

Liquid Knight said:

I honnestly hadn't considered rollercoasters as they are boring.

You've not been on Stealth it take it.

0-81mph in 1.9 seconds

The acceleration literally takes your breath away, no mode of transport comes close to the feeling you get on Stealth, it's almost worth in extortionate entrance price on its own!

http://www.youtube.com/watch?v=FUSflsrBtqk

Trouble is they are al designed by the finest engineers with the best computers and put together and maintained by some of the best mechanical fabricators and engineers in the world.

You should go to King's Lynn on Valentines day for the opening of "The Mart" I used to work at the Dukes Head a long while ago and while they were putting the rides together someone shouted, "er-fatter! Is tis err spanney or a screw div-er?". I haven't been on any of the rides since.

[traffman]

I jumped out of a plane at 10 thousand feet , remembering the parachute aswell.

Cannot for the life of me remember what the terminal velocity as i couldnt see a thing as the wind rushing past my face caused my goggles to mash securely against my eyes.

It was fking fast , i believe we were at 120 mph before he pulled the chute.

[CraigyMc]

traffman said:

I jumped out of a plane at 10 thousand feet , remembering the parachute aswell.

Cannot for the life of me remember what the terminal velocity as i couldnt see a thing as the wind rushing past my face caused my goggles to mash securely against my eyes.

It was fking fast , i believe we were at 120 mph before he pulled the chute.

You're at about 120mph belly down. Head down speeds can go past 200mph - the world record is something like 330mph.

C

[CraigyMc]

otolith said:

Suggest checking definition of acceleration.

Well aware of dictionary definition of acceleration, thanks.

Skydiving out of a plane involves getting out into a 100mph airflow. My point is that you don't feel much difference just because the airflow hits you from a different direction.

Suggest you take a trip to Netheravon and try it yourself.

C

[CraigyMc]

Totally offtopic, but...

Liquid Knight said:

Horizontal speed may well be whatever you are traveling at but unless the plane is in a dive the vertical speed would be zero.

Yeah, obviously.
However, the fact that the jump plane is moving *does* make a difference to what jumping feels like, compared to jumping off a balloon, for example.
There's no "feeling of acceleration".

Liquid Knight said:

B.A.S.E Jumping isn't as dangerous and the kitten killers make out either.

Dunno where you get that from - would like to know!
It actually is very dangerous according to both the USPA and BPA (I did my initial training in California, hence the USPA stuff).
Here's a list of fatalities (incomplete list) - http://www.blincmagazine.com/forum/wiki/BASE_Fatal... - bear in mind there are only just over 1000 registered BASE licenses in the world. Also - accoring to this, there were about 1 fatality per 60 base jumpers in the year of 2002 - http://bjsportmed.com/content/42/6/431.abstract
From my own experience, I *know* base is very dangerous.

Quite apart from anything else, the very fact that you start with zero airspeed on a base jump means that for the first few seconds, you have very little control at all in that part of the jump. Given that you typically will be quite low, this is important.
Another danger is the fact that the parachute openings are often quite violent (skydive and base rigs are quite different, although they look similar to the untrained eye) - a typical danger is an opening with linetwist that throws the base jumpee into a cliff (common on mountain jumpes, like in Norway). Base rigs pop open. Skydiving ones unfurl actually quite slowly by comparison.

The actual base rigs themselves are usually smaller, meaning higher loadings and faster/higher criticality landings, higher chance of stall etc. Lots of base jumps don't require a reserve, since there would be no time to deploy one in the event of a main fail anyway - another major risk.
Base jumpers tend to do low hook turns, which is a common cause of death for both experienced skydivers and base jumpers (it's a "showing off/enjoying yourself thing"). Since all base jumpers are typically also very experienced skydivers, this effect is magnified for base.

The reserve chute thing is something pretty important here. A skydiving rig will always have two chutes: main and reserve (technically optional in the US, mandatory in the UK, but you'll never find anything else). You will typically repack the main yourself after each jump (might have help from a rigger if you're new, but most people do their own all the time) - and this might take you 15 minutes.
A reserve, on the other hand, is not a self-pack job. You pay a master (Advanced) rigger to do this, usually it will cost upwards of £100 (plus a case of beer) and will take more than an hour to do. Reserves are quite often sealed. They spend the time doing it properly because the only time you pop your reserve, you definately need it and if it fails, you're fked.

You only give the case of beer to the master rigger when you've used the reserve. It's because the chute he packed saved your life. I've seen loads of happy, living people thanking riggers for this.
When base jumps go wrong, none of this extra safety stuff comes into play: the base jumper just becomes a statistic of one of the most dangerous (but fun) things you can do.

C

Edited by CraigyMc on Saturday 15th October 22:21

[Mr Sparkle]

CraigyMc said:

You're at about 120mph belly down. Head down speeds can go past 200mph - the world record is something like 330mph.

C

Didn't someone do one from extreme altitude in a space suit and break the sound barrier on the way down?

[Liquid Knight]

Mr Sparkle said:

CraigyMc said:

You're at about 120mph belly down. Head down speeds can go past 200mph - the world record is something like 330mph.

C

Didn't someone do one from extreme altitude in a space suit and break the sound barrier on the way down?

Longest Time in Freefall for One Skydive

The greatest freefall delay made in one jump was carried out by Captain Joseph Kittinger. He jumped from an altitude of 84,700ft (25,820m) from a balloon in Tularosa, New Mexico, United States on the 16th August, 1960. His freefall lasted for 4 minutes and 37 seconds before his canopy automatically opened. Throughout his skydive he achieved freefall speeds of up to 614 miles per hour (1,000 kph).
After the skydive, Kittinger commented that he could not tell at what speed he was falling, because his jumpsuit was very thick and he did not have any points of reference to relate his freefall speed to. Before he carried out the world record jump, Kittinger made several training jumps. On one of these training jumps, Kittinger’s hand was exposed to temperatures as low as 70 degrees Celsius, when part of his space suit that was still being developed, ruptured.
Kittinger did not have a Cypres to open his parachute, but a crude automatic opening mechanism to open his round main parachute.
After the world record, Kittinger retired but continued to distinguish himself by making long distance balloon flights.
Over the last few years a Frenchman named Michael Furnier has been preparing to break this record but has not made any attempts to this date.

[CraigyMc]

Mr Sparkle said:

CraigyMc said:

You're at about 120mph belly down. Head down speeds can go past 200mph - the world record is something like 330mph.

C

Didn't someone do one from extreme altitude in a space suit and break the sound barrier on the way down?

You're thinking of Joe kittinger, although some nutters have been talking about doing it again recently (alarmingly, some of them seem to have funding!).

There are several videos about it on youtube if you're interested: http://www.youtube.com/watch?v=90Y0_iJrRl0

The speed skydiving record attempts are all set from F12-13 (12-13000 ft) exits, so they don't get the benefit of falling in a near-vaccuum, they just go head-down and try not to go out of control. It's also possible to go head down just for funsies as opposed to speed (this is called freefly).

C

[hairykrishna]

CraigyMc said:

Speaking of crap posted in this thread, all the skydiving replies so far are nonsense unless you're skydiving off something that's not moving, like a balloon. (NB this is very much like a base jump, and it's quite dangerous).

You aren't going from 0-62 in a normal skydive. You're going from the speed of the jump plane horizontally (typically about 100mph) horizontally to about 120mph vertically. In skydiving parlance it's called "going down the hill". As such, there's actually very little acceleration, just a change of direction (so, for example, there's no "leaving your stomach behind" feeling).

Accusing people of talking crap and then coming out with that nonsense is a bit rich. Going from 100 mph in one direction to 100mph in another is not 'very little' acceleration. Just because it might not feel like much because you're getting hit by 100mph airflow from different directions doesn't mean you're not accelerating.

[jbi]

Lordbenny said:

Liquid Knight said:

I honnestly hadn't considered rollercoasters as they are boring.

You've not been on Stealth it take it.

0-81mph in 1.9 seconds

The acceleration literally takes your breath away, no mode of transport comes close to the feeling you get on Stealth, it's almost worth in extortionate entrance price on its own!

http://www.youtube.com/watch?v=FUSflsrBtqk

that's nothing compared to top thrill dragster (same type) at Cedar Point in the USA

0-120mph in 3.8 seconds and soars to 420 feet



http://www.youtube.com/watch?v=LbN3NU4hIZg

[anonymous-user]

slightly closer to topic I would have thought that a tuned R32 GTR would be a good bet but closer to £8-10k. Standard untuned was c 4.5-5 to 60.

If you want someone else to have paid for the work there was one on the gtr.co.uk site for c 10k that has 550-600bhp, that should sneak under 4s to 60

edit

this one I think

http://www.gtr.co.uk/forum/155796-1994-high-spec-r...

[anonymous-user]

slightly closer to topic I would have thought that a tuned R32 GTR would be a good bet but closer to £8-10k. Standard untuned was c 4.5-5 to 60.

If you want someone else to have paid for the work there was one on the gtr.co.uk site for c 10k that has 550-600bhp, that should sneak under 4s to 60

edit

this one I think

http://www.gtr.co.uk/forum/155796-1994-high-spec-r...

Edited by anonymous-user on Monday 17th October 07:15

[CraigyMc]

hairykrishna said:

CraigyMc said:

Speaking of crap posted in this thread, all the skydiving replies so far are nonsense unless you're skydiving off something that's not moving, like a balloon. (NB this is very much like a base jump, and it's quite dangerous).

You aren't going from 0-62 in a normal skydive. You're going from the speed of the jump plane horizontally (typically about 100mph) horizontally to about 120mph vertically. In skydiving parlance it's called "going down the hill". As such, there's actually very little acceleration, just a change of direction (so, for example, there's no "leaving your stomach behind" feeling).

Accusing people of talking crap and then coming out with that nonsense is a bit rich. Going from 100 mph in one direction to 100mph in another is not 'very little' acceleration. Just because it might not feel like much because you're getting hit by 100mph airflow from different directions doesn't mean you're not accelerating.

Going from 100mph to 100mph isn't accelerating.

Do not mix up scalars (speeds in any direction) with vectors (speeds in a particular direction).

[Liquid Knight]

CraigyMc said:

hairykrishna said:

CraigyMc said:

Speaking of crap posted in this thread, all the skydiving replies so far are nonsense unless you're skydiving off something that's not moving, like a balloon. (NB this is very much like a base jump, and it's quite dangerous).

You aren't going from 0-62 in a normal skydive. You're going from the speed of the jump plane horizontally (typically about 100mph) horizontally to about 120mph vertically. In skydiving parlance it's called "going down the hill". As such, there's actually very little acceleration, just a change of direction (so, for example, there's no "leaving your stomach behind" feeling).

Accusing people of talking crap and then coming out with that nonsense is a bit rich. Going from 100 mph in one direction to 100mph in another is not 'very little' acceleration. Just because it might not feel like much because you're getting hit by 100mph airflow from different directions doesn't mean you're not accelerating.

Going from 100mph to 100mph isn't accelerating.

Do not mix up scalars (speeds in any direction) with vectors (speeds in a particular direction).

PistonHeads Where Hypocracy Matters.

If you are going by literal definition then accerleration can be quantified as a change of direction caused by a variation of engery (that's why particle accelerators go round in circles). There is no such thing as 0-62mph because the Earth is rotating at a little over 1000mph and traveling through space at aproximately 67,000 miles per hour. Even if you were in space and completly still the Universe is expanding so you would still in relation to it be moving. As outer space has no atmosphere the Skyline wouldn't run and the skydiver would die of hypothermia before he/she had chance to die of Oxygen depratation.

In the sky diver situation the driver is going from a lateral direction to a verticle direction due to gravity. As the verticle velocity increases the lateral velocity retards in a negetive parabolic curve. The only acceleration is downwards. An example of this would be to fire a cannon off of a cliff edge at a horizontal trajectory and drop another cannon ball from the same height. Now not taking the Magnus effect into account both projectiles would land at aproximately the same time as the only external force acting upon them is Gravity. Therefore apart from a sudden mass acceleration as the projectile is fired from the cannon itself the only acceleration is downwards.

[Liquid Knight]

There you go....


I'm sure it wouldn't cost a lot to have someone shoot you out of a cannon.

[hairykrishna]

CraigyMc said:

hairykrishna said:

CraigyMc said:

Speaking of crap posted in this thread, all the skydiving replies so far are nonsense unless you're skydiving off something that's not moving, like a balloon. (NB this is very much like a base jump, and it's quite dangerous).

You aren't going from 0-62 in a normal skydive. You're going from the speed of the jump plane horizontally (typically about 100mph) horizontally to about 120mph vertically. In skydiving parlance it's called "going down the hill". As such, there's actually very little acceleration, just a change of direction (so, for example, there's no "leaving your stomach behind" feeling).

Accusing people of talking crap and then coming out with that nonsense is a bit rich. Going from 100 mph in one direction to 100mph in another is not 'very little' acceleration. Just because it might not feel like much because you're getting hit by 100mph airflow from different directions doesn't mean you're not accelerating.

Going from 100mph to 100mph isn't accelerating.

Do not mix up scalars (speeds in any direction) with vectors (speeds in a particular direction).

You're the one mixed up. Acceleration is rate of change of velocity. Velocity is a vector.

[CraigyMc]

Tell you what, I'll just stfu since this isn't getting us anywhere.

[blearyeyedboy]

jbi said:

that's nothing compared to top thrill dragster (same type) at Cedar Point in the USA

Well... not in acceleration, but I recommend one modified thrill.

1) Pay for admission to Alton Towers
2) Make sure you've been before and know the timings of Oblivion. (For those of you who don't know, where you hover above a 372m drop before you plummet at an 88.8degree angle. Yes, I used Wikipedia for those figures.)
3) Take your nervous mate on the ride.
4) Point at her harness and say "Is that supposed to be loose?" just before it plummets.
5) Listen to most of the ride's passengers scream while she shouts "You f***ing bd!" at you.
6) Duck when she tries to wallop you.