Lego Jeep Hurricane with dual Fake Engine - Why?

[DrJB]

I came across the subject's model and it has TWO fake engines. Anyone knows what's the thinking behind this? I do not know of a single vehicle that uses two engines (airplanes excluded).

http://www.brickshel...ry.cgi?f=468497

Edit: I searched further and it appears the actual Hurricane does indeed have 2 engines ... humm ... too little room in front or rear and engine had to be split in 2? I'm not sure I understand the logic. Anyone does?

http://auto.howstuffworks.com/jeep-hurricane1.htm

Better yet, take a look at the link below. The vehicle can rotate in place thanks to 'interesting' engineering.

http://auto.howstuffworks.com/jeep-hurricane2.htm

Edited November 17, 2014 by DrJB

[Zerobricks]

They probably used 2 engines just because they could Remember Hurricane was never meant to be a finished production vehicle, but a showcase vehicle.

[DrJB]

I would agree with that statement ... I worked 'with' Chrysler a while back, and they had a tendency to try many 'crazy' ideas, just because they could ... but then again 'crazy' for one is 'innovation' for someone else.

[dhc6twinotter]

The Hurricane had two 5.7L Hemi V8s. It was never meant to be a productions vehicle, but just a concept vehicle built for a good "wow" factor. It accomplished that very well, and imo, the Hurricane is probably one of the most notable concepts to come out of Chrysler, along with the Tomahawk.

[bonox]

I came across the subject's model and it has TWO fake engines. Anyone knows what's the thinking behind this? I do not know of a single vehicle that uses two engines (airplanes excluded).

How do you define a vehicle? If a car - There are numerous racing examples like the Suzuki Escudo used for pikes peak hill climb. Someone made a formula 1 car with a main propulsion engine and another to suck the vehicle onto the ground to increase tyre loading (downforce)

.

You can have combined engines like W16's, built from a pair of V8's but sharing a common crank. You've got electric and hybrid vehicles having up to five or six engines like Jaguars electric concept with a pair of gas turbines and a handful of electric motors

Trains will have many motors and locomotives commonly have two diesels on board.

Then you've got multi-engined machinery where each engine might just add to a total output, or else be used for different tasks. A dragline or crane for example having one for each of multiple hydraulics packs. Or a hovercraft with one driving a propulsion fan and the other a skirt pump.

Ships (even small runabouts) may be more common than not having multiple engines. Heck there used to be destroyers with 16 gas turbines on board. You've got coastal drug runners and interceptors with eight outboards across the back.

You can do it because you couldn't fit one engine of the same output in the space, or you want to play with weight distribution. Or two small ones are cheaper than one big one. Or you don't need all the power all the time and want to be able to run on less than the full complement.

[nerdsforprez]

"Depending on the driver’s needs, the Hurricane can be powered by 4-, 8-, 12- or 16-cylinders." -- http://www.rockcrawler.com/reviews/jeep/hurricane/naias_2005/index.asp

Have to admit.... pretty cool. Surprised there are not more videos available for this model on youtube

[bonox]

Might also be worth noting that the Lego power puller is actually a real vehicle as well! The idea if not the exact implementation. Google "Tractor Pull Competition" for some wacky examples.

Some other interesting examples:

http://www.dailymail.co.uk/news/article-2565715/Train-built-1966-using-two-jet-engines-fastest-locomotive-America.html

http://en.wikipedia.org/wiki/Brabham_BT46

http://utahrails.net/articles/up-dda40x.php

http://en.wikipedia.org/wiki/H_engine

(Someone like Jackie Stewart once described one of these as sounding like "four subarus in a mailbox" :))

[DrJB]

Might also be worth noting that the Lego power puller is actually a real vehicle as well! The idea if not the exact implementation. Google "Tractor Pull Competition" for some wacky examples.

Some other interesting examples:

http://www.dailymail...ve-America.html

http://en.wikipedia....ki/Brabham_BT46

http://utahrails.net...s/up-dda40x.php

http://en.wikipedia.org/wiki/H_engine

(Someone like Jackie Stewart once described one of these as sounding like "four subarus in a mailbox" :))

I knew that already :) ... for, if you got an original sealed box power puller, it came with a VHS tape that talks about the PP in competitions. Yes, a real vehicle indeed.

[Blakbird]

I came across the subject's model and it has TWO fake engines. Anyone knows what's the thinking behind this? I do not know of a single vehicle that uses two engines (airplanes excluded).

Of course the reason that Nathanael Kuipers' Jeep Hurricane model uses two engines is because the real Hurricane uses two engines. If I had to guess, I'd bet that the engineers at Jeep did this because they wanted more power but didn't have the PD budget for a new engine. Two engines also has some weight distribution advantages.

Better yet, take a look at the link below. The vehicle can rotate in place thanks to 'interesting' engineering.

That fascinating zero turning radius ability was the whole reason he built this model. He wanted to figure out how to do the whole thing mechanically (and succeeded). You can read more about his model here.

[DrJB]

That fascinating zero turning radius ability was the whole reason he built this model. He wanted to figure out how to do the whole thing mechanically (and succeeded). You can read more about his model here.

Thank you BlakBird ... along with holnomic platforms, that car is a must-build (to me at least). Are you aware if instructions exist, even partial?

[2x4Studios]

The French modded Citroen 2vc's to race through the desert! http://www.machine-history.com/sites/default/files/images/saharaschema.img_assist_custom.jpg (Fixed link)

Edited November 18, 2014 by 2x4Studios

[jantjeuh]

Thank you BlakBird ... along with holnomic platforms, that car is a must-build (to me at least). Are you aware if instructions exist, even partial?

AFAIK NK never made instructions for it because he couldn't get the model working reliably. I think Technic is too limited for models of such enormous complexity.

[DrJB]

AFAIK NK never made instructions for it because he couldn't get the model working reliably. I think Technic is too limited for models of such enormous complexity.

I kind of guessed that ... the vehicle has way too many differentials to accomplish all the functions (i.e., too much friction and slack)

The French modded Citroen 2vc's to race through the desert! http://www.bricklink...tore.asp?p=d_n2

That link is not correct ... it points to a store in Australia ... :(

[Blakbird]

AFAIK NK never made instructions for it because he couldn't get the model working reliably. I think Technic is too limited for models of such enormous complexity.

Well, I've built it and I would say that it does function correctly, however it is not intended to be a driving model. As a demonstration of a way to do mechanical 4 wheel steering switching to zero turn steering, it works great and as advertised. It just does not drive.

However, GuiliuG later made his own Hurricane which I think does really drive and has full instructions. I have not built this one but I have built some of his other models and can attest to the excellence of his designs.

[2x4Studios]

I kind of guessed that ... the vehicle has way too many differentials to accomplish all the functions (i.e., too much friction and slack)

That link is not correct ... it points to a store in Australia ... :(

sorry about that, Link is now fixed!

[Mestari]

Well, I've built it and I would say that it does function correctly, however it is not intended to be a driving model. As a demonstration of a way to do mechanical 4 wheel steering switching to zero turn steering, it works great and as advertised. It just does not drive

How were you able to build it, by just looking at the pictures?

[Rockbrick]

The French modded Citroen 2vc's to race through the desert! http://www.machine-h...sist_custom.jpg (Fixed link)

wasn't just a mod the 2CV Sahara 4x4 was a production vehicle with two engines, two starters - two ignition keys.... fuel tank under the seats...