VERY - Clever people

[Paul in NZ]

In an age when some people can't even change their own visor without professional help it's good to know their are still leg wettingly clever people out there.... I'm impressed...

http://www.techeblog.com/index.php/tech-gadget/feature-guy-builds-world-s-smallest-4-stroke-v12-engine-is-aircooled-video-

[Paul in NZ]

Maybe this guy helped out?

http://www.metacafe.com/watch/208526/v8_engine

[Laava]

The video is cool, that thing sounds awesome!! :Punk:Great find Paul!

[tri boy]

Curses to slow broadband:angry2: I will attempt to view it later.
Talented person indeed.

[banditrider]

Cool allright. V12 sounds great & can rev! V8 a lot bigger but looks more complex.

[sAsLEX]

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This guy is amazing as well!

Internal combustion is sooo yesterday!

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[BarBender]

Very cool.

[Colapop]

I am in awe of the skill that these guys show! And the patience... wow!

[sAsLEX]

http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=81796&d=1199609482
http://www.kiwibiker.co.nz/forums/attachment.php?attachmentid=81797&d=1199609482
These were the guys first attempt at model engines.

Turned up on a little lathe/mill combo.

The marble act as the displacer and the balloon expands to return them to the hot side of the engine to allow the air to cool, collapsing the balloon and allowing the marble to fall back to the right!

And the reason for the funky flywheel was the lathe wasn't big enough to turn a more traditional one so he thought this up!

Another thing to one day build for the coffee table.

Similar concept
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[xwhatsit]

That V12 rocks. It even sounds like a proper V12 -- got that 60s F1 sound. Absolutely awesome.

[awauckland]

An oldie but still a goodie

http://videos.streetfire.net/video/3095c8fd-7c91-4f14-b368-98bf0167693c.htm

[huck farley]

You know, I have been in engineering for most of my life. And can appreciate the hours of commitment in making the V12 and the V8 and the Ferrari the dedication is, well unbelievable!!

I could never have the patience to make anything like what these guys have built. I feel humbled as a result. Also their masterpieces are a true labour of love.

I would love the V12 motor to put into a scale model Spitfire, or Mustang. I do have the patience to build planes. But they are easy to build in comparison to the engines, as everything is kit-set. These guys are to be encouraged!! As in my books they are the modern day Albert Einstein's.

[sAsLEX]

I would love the V12 motor to put into a scale model Spitfire, or Mustang. I do have the patience to build planes. But they are easy to build in comparison to the engines, as everything is kit-set. These guys are to be encouraged!! As in my books they are the modern day Albert Einstein's.

Why stop at an engine? This guy deserves a medal or seven! 15 years on a project and 20,000 man hours, to completely hand built a perfect scaled down Ferrari 312PB, even the gearbox works!

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[Bass]

In an age when some people can't even change their own visor without professional help it's good to know their are still leg wettingly clever people out there.... I'm impressed...

http://www.techeblog.com/index.php/tech-gadget/feature-guy-builds-world-s-smallest-4-stroke-v12-engine-is-aircooled-video-

The V12 is made from largely commercially available components. Vtwins are available as are 3,5,7, and 9 cylinder radials, if you have the money. It is glow plug ignition and so is very basic electrically. It is a significant achievement but not great and within the capabilities of most model engineers.

The V8 is another level of complexity altogether. It has little or no commercial componentry and is by far the greater achievement.

[Paul in NZ]

Yeah but anything better than I can manage is still dead cleverer than me so I'm still dead impressed...

Imagine a go cart with that V12.....

[Bass]

Yeah but anything better than I can manage is still dead cleverer than me so I'm still dead impressed...

Imagine a go cart with that V12.....

The Ferrari is worlds ahead of either of the engines. It has to be close to the epitome of the model engineer's craft.

However, you would be surprised at what is available commercially for the modeller, these days - electric start, computer controlled turbo jets for example. Imagine 4 model turbines, putting out 18 kg of thrust each, across the back of your Go-Kart

[James Deuce]

4x18kg. I still won't be moving anywhere.

[Big Dave]

I still won't be moving anywhere.

Irresistible thrust meets immovable obstinate.

[sAsLEX]

The V8 is another level of complexity altogether. It has little or no commercial componentry and is by far the greater achievement.

And what of the Ferrari model I posted..... he made his own valve springs! And completely self taught!

[Bass]

4x18kg. I still won't be moving anywhere.

Put some wheels under you and you could be talking. Say 150 kg all up, it gets you about 0.3 G's off the line. Never gonna cut it on the strip but it's enough to push that Swiss guy around the sky at up to 300kph. Presuming you've seen that video of him flying around with a home made wing and 4 model jets strapped to his back.

[Bass]

The Ferrari is worlds ahead of either of the engines. It has to be close to the epitome of the model engineer's craft.



And what of the Ferrari model I posted..... he made his own valve springs! And completely self taught!

Ummm......yep, with you on that one

[James Deuce]

Put some wheels under you and you could be talking. Say 150 kg all up, it gets you about 0.3 G's off the line. Never gonna cut it on the strip but it's enough to push that Swiss guy around the sky at up to 300kph. Presuming you've seen that video of him flying around with a home made wing and 4 model jets strapped to his back.

Yes. Swiss. Well he's full of holes then, so it stands to reason he's lighter than normal humans.

[Bass]

Yes. Swiss. Well he's full of holes then, so it stands to reason he's lighter than normal humans.

Bugger! I never thought of that. (But just to be completely anal for a moment, heavily loaded aircraft fly faster than lightly loaded ones - they have to)


And what of the Ferrari model I posted..... he made his own valve springs! And completely self taught!

Ummm.... You seem to have a bit of an electronic stutter there mate. Have a look at posts 16 and 21 (though I could be missing something here - subtlety was never my strong point)

[imdying]

And what of the Ferrari model I posted..... he made his own valve springs! And completely self taught!He's a hardcore mofo. No doubt baby :blink:

[huck farley]

Why stop at an engine? This guy deserves a medal or seven! 15 years on a project and 20,000 man hours, to completely hand built a perfect scaled down Ferrari 312PB, even the gearbox works!

I did mention the Ferrari!!! It is a masterpiece indeed!!

[cooneyr]

Pity the Stirling engines (videos using candles for heat) were never developed any further. In the 70s (I think) a truck was fitted with one. It went pretty good but I understand the engine was super heavy and big. Modern materials and technology etc etc and I wounder what could be achieved?

Stirling engined are about 60-70% efficient compared to an internal combustion engine at 30% and can use any heat source.

Cheers R

(all of this is from memory from some reading I did about 10 years ago)

[EJK]

Mmmmmm sounds like a Lamborghini too ;)

[James Deuce]

Pity the Stirling engines (videos using candles for heat) were never developed any further. In the 70s (I think) a truck was fitted with one. It went pretty good but I understand the engine was super heavy and big. Modern materials and technology etc etc and I wounder what could be achieved?

Stirling engined are about 60-70% efficient compared to an internal combustion engine at 30% and can use any heat source.

Cheers R

(all of this is from memory from some reading I did about 10 years ago)
http://www.howstuffworks.com/stirling-engine.htm

[nudemetalz]

Sheez, I thought the Stirling engine was from one of these...

[James Deuce]

Sheez, I thought the Stirling engine was from one of these...
Those things gifted many Paras a free set of false teeth.

You dropped out of a hole in the floor and any turbulence (like 88mm or 150mm flak bursting nearby) would move the aircraft relative to you as you jumped through the hole. Lower mandible hitting the edge on the way out would result in broken jaws and shattered teeth

[sAsLEX]

Pity the Stirling engines (videos using candles for heat) were never developed any further. In the 70s (I think) a truck was fitted with one. It went pretty good but I understand the engine was super heavy and big. Modern materials and technology etc etc and I wounder what could be achieved?

Stirling engined are about 60-70% efficient compared to an internal combustion engine at 30% and can use any heat source.

Cheers R

(all of this is from memory from some reading I did about 10 years ago)


There is a mini about with 640Kw of electric motors in the wheels that uses a small stirling engine in the boot to charge the batteries. External combustion engines can be more efficient than internal!

Also there is some research in solar energy using parabolic mirrors to heat part of the stirling engine as they require little heat difference!

[cooneyr]

There is a mini about with 640Kw of electric motors in the wheels that uses a small stirling engine in the boot to charge the batteries. External combustion engines can be more efficient than internal!

Also there is some research in solar energy using parabolic mirrors to heat part of the stirling engine as they require little heat difference!

This is the sort of thing I was talking about. Needs more work. I know that wispergen (I think thats the right name) here in chch makes oven sized units that are electricity generators. For emergency use, ship etc use or as part of a distributed generation system.

Cheers R