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I used to have a Mamod stationary engine ........ I understand they were still being made , but in China .... ( where else ? ) ....... but with some sort of solid fuel lighter , which has now been banned ?

With mine , you`d fill the burner tray with meths , and light it up with a match ...... and then stare at it for about five minutes as the pressure built up ..... and steam and water started to dribble out of the pressure relief valve ....... give the flywheel a nudge or two...... and we have the bursting into life...... accompanied by puffs of steam , connecting rods thrashing back and forth , and various sucking and hissing noises ..........

I always fancied the steam roller version , but never got around to having one of those .

..... minature diesel aero engines ...... jet canister propelled boats ...... model steam engines ......... tell that to the kids nowadays , and they just wouldn`t understand ......... :) .................
 
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We have a mad Scientist about in the club, and he dragged his I think RAM Jet working model out at his Birthday party, great noise and huge flame, a good few meters long out the back. All good till his Dog decided to try and bite the flame. Luckily, no Hot Dogs were cooked that night
 
Exmoor beast said:
I will tell of a guy called Julian that was involved with the Tate & Lyle sugar rocket. Along with other rocketry he was told you couldn’t import solid fuel boosters from the US as they were classed as explosives. Jules was in air freight and managed to get some in as fireworks 🤔.
Being a twat he wanted to see what one would go like, they were about two foot long & give a set boost for so many seconds and the idea is you use as many as you need to propel said rocket etc. He also did the vice trick and linked the booster to an ignition and set it off..
This was in a north London suburban back garden, apparently the noise was horrendous, it blasted the shed down in seconds and ran for what seemed an eternity, probably 30 seconds- belching smoke and 4 foot orange flames , scorching grass and what was left of shed.
So then he has to fan, dowse the smoking ruin whilst also pretending not to know what the noise was to the neighbours.
Click to expand...
The world is so much more risk averse nowadays. I remember my chemistry teacher and a couple of sixth formers synthesising nitroglycerin.
“The mixture may darken and become very unstable.”
“It’s black now, Sir!”
Out the lab window it went.
Happy, as you say, days.
 
I was going to link this in the weather thread but xxx. They do great content when not underwater, worth a Subscribe. Have I mentioned how wet it is?
 
I hope they crack this nut. It sounds brilliant. The first time I ever heard Rotery Valve was an article written by Phil Irvine sometime in the 1960s, maybe. They have been around a lot longer than that, but not in 2 strokes, I think. Some googling brought this up.
www.oldbikemag.com.au

Spin Doctors: The Rotary Valve Cylinder Head - Old Bike Australasia

The rotary valve cylinder head has been around longer than the motorcycle, falling into, and out of favour on a regular basis. There’s a school of thought that says this system offers so many advantages [...]
www.oldbikemag.com.au www.oldbikemag.com.au
 
Yes, the only place I've heard of rotary engine valves being used before is in the cylinder head. This engine has a whole new way of using a rotary valve. It's stupidly simple and brilliant at the same time.
 
Scary things happening south of our Canadian boarder ;o(
As of 2025, California's population is approximately 39.5 million people.
The population of Australia is estimated to be approximately 27,867,800 as of June 9, 2025
The current population of Canada is approximately 40,025,340 as of 2025.
Geez - Canada and Australia are the most mixed raced and most under populated Countries by area in the world. We are F*&#@D ;o(

PS: I could not upload this YouTube content using a U.S. VPN Address - Meaning the U.S. Adm is blocking it on the Internet.
 
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My favourite is that you put a potato in and it fires out chips ............


BTW .... I`ve just noticed the https: for this ends in Doge ......... Is the Musker checking out YouTube videos now ? .........
 
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Another from Matt at The Workshop .........

No comments or introduction from Matt ..... just him saving this piece of Olympic standard bollocks for posterity ......... ( I think Del`s deleted it ) ........

Some say he unfairly targets Delboy , and Dave Moss ....... but watch this and ask yourself ..... Can you really blame him ? ..........

 
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