Oddball engines and prototypes

[guyhockley]

All this talk of Villiers conversions is giving me ideas for an update on my 197 special...

I've even found a period watercooling conversion writeup, done on a 9E. Can hide a lot of mods under a waterjacket.

I assume your rules are similar to over here, if you can prove it was done in period then it's valid? This doesn't actually give a year but there are contact details...
http://www.iancramp.co.uk/Design%20&%20Development.html

[guyhockley]

Tony Foales uniflow 2 stroke, there are links to other pictures of the beast.

http://www.tonyfoale.com/gallery/Eng...tary_2_jpg.htm

[husaberg]

I assume your rules are similar to over here, if you can prove it was done in period then it's valid? This doesn't actually give a year but there are contact details...
http://www.iancramp.co.uk/Design%20&%20Development.html

Judging by the frame and tank it at least 63
i see he used a decent gearbox.

note the variable length bellmouths Whoops its juct to supprt the injectors and locked in place.

Ian's Dad built a very succesful Arrow/leader in the VMCc pre 58 converted to twin carbs.
i posted it ages ago along with the lionheart build

[Frits Overmars]

Presumably the same Rob Collet (good engineer's name!). He did 4 and 2 stroke sleeve valve engines.

It almost escaped my attention, but there's a real novelty here: attaching the carburettor to the coolant stub. And the radiator to the crankcase maybe?

[tjbw]

It almost escaped my attention, but there's a real novelty here: attaching the carburettor to the coolant stub. And the radiator to the crankcase maybe?

Thanks to Guy for posting the interesting Collett and White article.

I can't imagine how someone got all 3 coloured labels out of position, and some text under "how it works" is wrong too!

They may have built a version with inlet direct to the cylinder (not to the cooling circuit), but that would have required a supercharger.

Perhaps some "editor" tried to enhance Mick Duckworth's article.

[husaberg]

[ken seeber]

A well-known & proven method of coming to STRIKE Products and expecting a positive outcome is to bring gifts and trinkets. One dude brought around a magazine on unmanned systems:

]

This edition had a feature on a drone 2 stroke engine. Will have to post in 2 steps.
I see that some of the pics are upside down (they are correctly orientated in the computer) and not in order. Sorry, but dunno why.

[ken seeber]

Here’s the rest. To me and without any real understanding of its goals and any comparative info on other engines, it seems to be a naïve & expensive way to design & make an engine, but a really good way of getting thru some big $s.

[husaberg]

Vncent made an engine for a UAV target drone Picardor

http://thekneeslider.com/vincent-picador-drone-engine/
Mazda 13B's have also been used, some even converted to single rotors

[guyhockley]

The split/half liner idea is reminiscent of the Landspeed RD400 that was posted in ESE
https://www.kiwibiker.co.nz/forums/showthread.php/86554-ESE-s-works-engine-tuner?p=1130894352#post1130894352

[guyhockley]

Christner 2-4 stroke engine:
http://quincylooperracing.us/gpage4.html
"Innovations" and "Qcy v Konig" links are quite interesting, too.

[husaberg]

Christner 2-4 stroke engine:
http://quincylooperracing.us/gpage4.html
"Innovations" and "Qcy v Konig" links are quite interesting, too.

Yes they are

[Flettner]

Gee, that gyro flying look like a lot of fun
And it is, but not so close to the ground! It will end in tears.
AND as for the helicopter, forget it! Whats the term? I remember, Certain death!!!

[husaberg]

Gee, that gyro flying look like a lot of fun
And it is, but not so close to the ground! It will end in tears.
AND as for the helicopter, forget it! Whats the term? I remember, Certain death!!!

I was watching another one doing jump lift offs how does that work, how do the power the rotary wing up to speed?
does the airflow from the pusher engine initially spin it like a windmill?

I was also watching someone almost stall the wing in very steep climbs how much warning do you get does it judder or just stop being airborn anymore?

For your next project
https://i.kinja-img.com/gawker-media...9305731650.gif

Actually i might have figured it out.

[guyhockley]

snip
For your next project
https://i.kinja-img.com/gawker-media...9305731650.gif

snip

Bet a Kiwi version would be cheaper!
https://www.pal-v.com/en/reserve-your-pal-v