The Bucket Foundry

**Flettner** · 24th January 2016, 09:38

Originally Posted by Frits Overmars

Hydrogen has an octane number > 130 so it may not want to play ball in your HCCI engine.
What it does have is an extremely wide flammability window. That's fine, but it is not required with HCCI.
Attachment 319058
Here's some more hydro-reading:http://www1.eere.energy.gov/hydrogen...fs/fcm01r0.pdf

That looks too good to be true. And you know what they say...
It'll work if you carry not only the hydrogen but also bring your own oxygen. Yes, there's oxygen in the air, but it's polluted by an overdose of nitrogen.
And if you put that in a combustion engine, you will have H2O + energy + NOx out.
Enter the fuel cell: no high temperatures, so no NOx.

Ok, just a thought, I'll stick to my light oils.
The Gyro has taken up my time as it needs to be ready for next weekend. Fuel tap leaks, prerotator needs a new finned clutch cone, and some sort of travelling device to hold the control stick off the back stop. I don't want the rotor head banging aginst it's stop all the way down to Dannevirke. Trailers are hard on aircraft.

**WilDun** · 24th January 2016, 11:13

Originally Posted by Flettner

Bit of a drive, Dannevirke.

BUGGER!
My brother in law lives down that way (Wairarapa) but we only get down there about once a year - Looks like we may be at Raglan this weekend anyway and just to mention foundries again, an ideal place to do some melting and casting! - we'll see.

Also a great place for aircraft - not many places where you walk across the runway to get to the beach (remembering to look right and left before you cross, as incoming aircraft have their engines on idle and you can't hear them coming).

**Flettner** · 24th January 2016, 11:22

Originally Posted by WilDun

BUGGER!
My brother in law lives down that way (Wairarapa) but we only get down there about once a year - Looks like we may be at Raglan this weekend anyway and just to mention foundries again, an ideal place to do some melting and casting! - we'll see.

Also a great place for aircraft - not many places where you walk across the runway to get to the beach (remembering to look right and left before you cross, as incoming aircraft have their engines on idle and you can't hear them coming).

The good thing about the Dannevirke strip is it's long and smooth with plenty of off field parking, you know, lots of flat paddocks for emergency engine out landings. Also being Dannevirke it's quiet, no air traffic, until we turn up

**andrew a** · 24th January 2016, 13:10

Originally Posted by Flettner

The good thing about the Dannevirke strip is it's long and smooth with plenty of off field parking, you know, lots of flat paddocks for emergency engine out landings. Also being Dannevirke it's quiet, no air traffic, until we turn up

Hi Neil i will try to catch up with you if I make it up on Sunday. Ill look for the 2 stroke beast.

**Flettner** · 24th January 2016, 13:23

Originally Posted by andrew a

Hi Neil i will try to catch up with you if I make it up on Sunday. Ill look for the 2 stroke beast.

See you there.

**WilDun** · 26th January 2016, 08:28

Neil, if your new engine is a success will you be catering for the fixed wing people too? - road bikes maybe?

**jhenise** · 27th January 2016, 03:22

howdy all, Neil had asked me to post my progress here about making a pattern for an air cooled two stroke cylinder. this is a follow up from about a month ago.

it's coming together!

Full story here...

http://www.alloyavenue.com/vb/showth...308#post183308