Rocket Powered Mongoose

[fechter]

OK, it's not electric, but certainly qualifies as alternative transportation.
http://www.the-rocketman.com/gallery/mountainbike.html

Nitrous oxide and salami works pretty good. Oreo cookies can also be used as fuel. Does that count as Biofuel?

 

[safe]

Mountain Bikes and speed are a dangerous mix...

 

[TylerDurden]

Nitrous oxide and salami works pretty good. Oreo cookies can also be used as fuel. Does that count as Biofuel?

Only when used with a flatus-tube.

 

[darryl64]

if you come to a sudden stop that dick on the front is gonna tear you a new one ...................

 

[waynebergman]

Wow! That thing is a total eye sore! A contraption of supidity.

 

[dingoEsride]

Mountain Bikes and speed are a dangerous mix...

not if it's not me riding it, but looks like it could get a little tail waggy

 

[Dauntless]

if you come to a sudden stop that dick on the front is gonna tear you a new one ...................

It might tear someone else a new one before stopping.

 

[made_in_the_alps_legacy]

maybe the right place to mention the recent 207mph world record on a rocket bicycle........

[youtube]WREyAicJXkM[/youtube]

 

[fechter]

Holy crap! that guy is brave.

I think he needs better brakes. :wink:

 

[The fingers]

Definitely doesn't need a rearview mirror. :lol:

 

[dingoEsride]

Taken from his facebook page...

"I saw the specs for the rocket engine some 4.7kilo newtons which is about ~500 kilos of push power for a few seconds . Thats also some 410 ,kilowatts of power ( ~500 plus BHP ) . Nice one . For those that dont know OH hydrogen peroxide is passed over metals like silver or manganese alloys.This event causes hydrogen peroxide.to combine with oxygen from the atmosphere and create heat and H20 water .The speed of the reaction creates massive heat and the water becomes steam and the steam exits at high speed as a rocket power engine .The air resistance at those speeds 333 Kph or ~200MPH would be severe as drag increases by the cubic root . We can assume the drag equaled close to ~500 kilos as that was probably the fastest the machine could go and drag and thrust reached the balance at that ~333kph .As much of that drag was the man hanging onto the bike best to lie down mode profile and only expose the head and sholders to the forces. Also a good seat that would take the majority of the weight of fast moving air that would like to rip you off the machine . Also a very good grip is must . the cost of device many thousands .the risks to get severe road rash nearly certain. Smile on face after the kick ass ride priceless . Well done mon ami ."

 

[Ypedal]

tabarnac....

edit : just noticed this is a thread from 2007 !!

 

[Stevil_Knevil]

Wow Proof that hydrogen peroxide is not just for treating cuts and scrapes - it might actually cause them.

Mind=blown

 

[Avitt]

Wow...rim brakes!

 

[Dauntless]

tabarnac....

edit : just noticed this is a thread from 2007 !!

But isn't it ironic to see Safe warning about dangerous mixes?

 

[Modbikemax]

I love rockets and jets on bicycles. The more ridiculous the better :lol:

 

[Doctorbass]

Elon Musk and Rocketman340 are my god !!!

8)

Amen!

 

[\/ampa]

Are these "ebike ready" tires he used for his 207mph world record on a rocket bicycle?
Or did he prooved this is just stupid marketing bull shit ?

 

[fechter]

Tires would have a lot of stress at that speed. Imagine if one blew?
Luke probably knows how much a bike tire can take.

 

[speedmd]

Big difference is driving power into a tire and expecting significant braking power with them, then to just keep you upright and rolling. 200 mph for a light / tight wire bead well inflated tire should be no issue. Regardless, it is great to see the acceleration! Bravo! BTW... Brakes don't make it faster they only slow you down.

 

[izeman]

Wow...rim brakes!

i don't think that ANY kind of bicycle brake could contribute any noticeable stopping power at over 300km/h
i guess this brake is just to come to a full stop and not let the bike roll away.

 

[Avitt]

Wow...rim brakes!

i don't think that ANY kind of bicycle brake could contribute any noticeable stopping power at over 300km/h
i guess this brake is just to come to a full stop and not let the bike roll away.

Likely. Nevertheless, those are rim brakes on the world's fastest rocket bike...

 

[The fingers]

No drag chute.

 

[liveforphysics]

Are these "ebike ready" tires he used for his 207mph world record on a rocket bicycle?
Or did he prooved this is just stupid marketing bull shit ?

Swiss rocket man has been a hero of mine for at least a decade. This is real. A bicycle tire shreds and tears apart pretty easily from over-torque, but I've never seen a failure from over-speed yet... Something to look forward to discovering I suppose.

 

[speedmd]

I've never seen a failure from over-speed yet...

Just a gut feel, but looking at the hoop strength needed to endure the stresses (80 psi and above)of high tire pressure on a 40 plus mm width tire, somewhat dwarfs the centrifugal force induced from spinning a rather light weight tire. Certainly all tire / rim combos are not equal, but 200 MPH on a coaster wheel setup like on the rocket bike seems reasonable at a quick look to me at least.