Mathematical madness

[warped one]

Bit of a puzzel for you lot.

What angle and how fast would you have to go to get a bike off a ramp and into space?

Run up to that speed would be ace too.

Warped
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amnesia - Never in the history of usernames has one been more accurate. Warped indeed. You sir are a fecking oddball.

[Skudd]

You would need any 50cc ragnut, a red power band, a four foot plank and three bricks to put it on. The run up would be about 25m in which time the ragnut will reach the optimum speed required. Jobs a good un.
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Famous last words of Humpty Dumpty. " Stop pushing me "
Petty Anarchists look at "1984".............. The Visionary looks at "Animal Farm".

[ms51ves3]

45° at 17,500 mph

No idea, just thought I'd guess.

[carvell]

Pretty easy to work out...

The Angle would need to be 90 degrees (i.e. vertical) and the speed would need to be at least 17,500mph.

Just look at what a space rocket does, you'd have to do that.
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Yamaha TDM 850

[Billing]

according to several sources space is generally accepted as being 690km from the earths surface, on that basis I'd say it's impossible to launch a motorbike into space using a ramp

would be interesting to find the theoretical answer though
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'84 TS50X, '91 TZR125, '89 CBR400RR, '91 VFR400R NC30, '98 R1
"Hey copernicus! Why don't you navigate yourself to the back of the line with your feet and stand there with your shit."
BCF Eastern members map here ---> g.co/maps/2tm8b PM me to be added to it!

[silky666]

[silky666]

I forgot to add ... that I am willing to help you ... and have the woodwork skills to build a ramp.
I am also quite handy with a 2 stroke.
Only caveat is that I will need to be called Captain Silky ... and I want a white jump suit (tight around the crotch please).
____________________
There's nothing that shouts "Poor Workmanship" more than wrinkles in the Gaffa tape.

Gaffa tape is like "the force" - it has a light side, a dark side, and it holds the universe together.

[warped one]

So we have:

Ramp angle - 90 deg
Speed - Mach 24??? Would this be with the slowing down factor put in place?

And silky in a white jump suit that stight around the crotch

Warped
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amnesia - Never in the history of usernames has one been more accurate. Warped indeed. You sir are a fecking oddball.

[Billing]

if you just wanted to make a ramp to space, I think i found the answer.

690km = 6900m

3.3ft = 1m

6900 X 3.3 = 22770in

if the height of the ramp is 22770in, and the angle is 45 degrees, the ramp will be 2683.2ft long

ill be damned if i can get you a speed though, but if a 90 degree ramp requires you to be doing mach 24, mach 12 should suffice
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'84 TS50X, '91 TZR125, '89 CBR400RR, '91 VFR400R NC30, '98 R1
"Hey copernicus! Why don't you navigate yourself to the back of the line with your feet and stand there with your shit."
BCF Eastern members map here ---> g.co/maps/2tm8b PM me to be added to it!

[The Artist]

over 9000mph at over 9000 degrees out of over 9000 pieces of wood

[virus]

I think if you go up that hill with 3 drops in at 132mph you'll probably make it.


Cheers
John
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.

[Hetzer]

[ms51ves3]

[Hetzer]

[Billing]

[Alexio]

I honestly set out to get some real facts and figures to try and by genuinely helpful. Unfortunately the first link I hit in my research was this:

https://wiki.answers.com/Q/What_kind_of_force_is_needed_to_launch_rocket_ships

After that I kind of gave up. All I shall leave you with is a ridiculous fact I found on Wikipedia:

[The Shaggy D.A.]

Space starts about 60 miles up. If you've got a ramp at about a 30 degree angle, about 120 miles long, a CG125 would make it in a couple of hours, assuming you carried compressed air with you.

Dunno why NASA bother with all this "Space Shuttle" nonsense. A pizza delivery C90 could take stuff up for the International Space Station. Pizza would be cold by the time it got there though. And it's a bugger having to go back because they ordered the garlic bread with cheese, and you only brought plain garlic bread.
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Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5

[The Shaggy D.A.]

Actually, that's a silly idea.

A 30 degree angle is roughly a 1 in 3 hill, and a CG125 couldn't do 60 up one of those.

Make it a 240 mile ramp, and it's then more like a 1 in 6, and aim for 5 hours, including a pee stop.
____________________
Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5

[silky666]

Dont forget that the combustion engine will need oxygen to continue running as it powers its way to the mach 24 needed to escape earths gravity.
Given that this gets pretty thin the nearer you get to space ... I would also suggest strapping a load of these to the rear seat.

https://www.ozoneservices.com/products/OLO/images/tank/01-b.jpg



Come on guys .. we can do this.
Captain Silky

https://pzrservices.typepad.com/vintageadvertising/images/2007/10/18/onepiece.jpg
____________________
There's nothing that shouts "Poor Workmanship" more than wrinkles in the Gaffa tape.

Gaffa tape is like "the force" - it has a light side, a dark side, and it holds the universe together.

[Ste]

[The Shaggy D.A.]

[Damon]

All you would need is Tony's TS50 and a bit of mdf. Problem sorted.

Careful you dont break anything though

Talking of tony, I spoke to him last night online and he showed me the shiney new fireblade he bought... some people never change

[silky666]

[neil.]

https://www.joe-ks.com/archives_may2006/1sttHybridMotorcycle.jpg

(someone had to post it)
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current)

[Chris750]

I'm too lazy to try working it out. But,

The acceleration due to gravity is 9.8m/s/s (9.8 m per second per second), you need to assume that this would remain constant ( often denoted a in equations of linear motion).
Google the escape velocity for an object from earth atmosphere this will be your final velocity (often denoted by v in equations of motion). The inital velocity (denoted u) is the thing your trying to calculate.
Google equations of motion. Find the ones that will be most suitable, you may have to change them slightly with respect to the componant you are trying to find.
you may need to find two equations relating t (time) and u (initial velocity) which can then be solved simultaneously. I'm sure thats how I worked out a similar problem recently.
These equations assume vertical travel, but by using trigonometry you can work out the effect of reducing the angle of take off with respect to earth using the basic formula (sin X = o/h, cos x = a/h), which alow you resolve something to two perpendicular components.
Obviously all calculations ignore effects of wind resistance and changes in the earth gravitational field.