New Build - Monosoupape Gnome rotary engine.

This exciting engine project is underway at Omaka in New Zealand.

0:10 - Over View.
0:42 - Close up of cam and valve timing.
1:22 - Engine Operation Explained.
3:06 - Still Closeups.

[gatti]

i saw such an engine in london in the science museum 25 years ago, now i know how it works,
Thanks !

[tabsqc]

Many congratulations. My grandfather was shot down by Archie nr Ypres on the 20th June 1915 flying a Vickers Gunbus with a Monosoupape. We grandchildren used to be summonsed to lunch by a clanger set inside a cylinder.

[jamesb.]

What an interesting contraption, watching the whole cylinder array itself spinning around is so unusual! The idea that the mixture is sucked in that way too. Obviously the light weight was what was in mind.

[abcdefg]

Very many thanks for showing this, you have done a great service to the many people who, for some reason cannot believe the cylinders rotate around the crankshaft, they should be forced to watch this, but I think they are so fixated on their clumsy rough radial engines they can see no further. Top marks for producing this engineering marvel. Chris.

[californiadreamin]

Superb video.
When my car broke down in Paris, I had to buy a French manual. Monosoupape = mono soupape = single valve. For un Anglais "soupape" is a bit of an odd word, but if you visit the annual display at "La Ferte Alle" just south of Paris, you will at least know a little more of the French language !! and enjoy a superb display.

[davidaeldon]

Amazing. And the first video I've seen that gave me some idea of how a spinning engine can get fuel delivered to the cylinder.

[jhettish]

This a beautiful reproduction of what seems to me to be a 100 year old miraculous design.  The guy or guys who came up with this in 1915 must have been geniuses.  I tend to think of engines of this period as being rather primitive.  The "rotary" is simple in some ways but not so simple in others.  You guys have done a wonderful job.  I will be checking out the web site.  Quite impressive.  

[GUNSQUIRREL]

very nice thank you for sharing...a thing of beauty☻

[davetopper]

I saw an ad for Battlefield1, the WW1 sim game and I saw an engine move with the prop. Before I went off half cocked I though it best to check myself. Good thing I did. Seriously I didn't think they worked like that.

[fromgermany]

So it is a 4stroke, but not with a supercharger, but more with a build in half closed throttle. Is that compensated somehow by higher compression?

[paullubliner]

PLEASE consider building a new and partially throttle-able LeRhone 9R 170HP engine and fit it into an accurate Nie. 28. You fellows should know all about the 27th Aero Squadron's success with their 46+ corrections to that airframe resulting in the Army Air Corps placing an order for 600 such "Super 28's" with 9R at the close of the war.

[cluelessbeekeeping]

Which motor makes more power, the original or the new one? Did you guys 'tweak' it anywhere???

[Sergecalifornia]

The gnom. Was a single-cylinder engine. The (gnome )was the first rotary engine, a very popular engine in the first world war. At the beginning of the war, the German was using that engine.

[Allan_aka_RocKITEman]

I have worked in aviation -- mostly on the maintenance side of things -- for a good portion of my life. I have seen photos of rotary radial engines, and I understand the concept of how they work.

{I always call them rotary radials, because when I just say rotary, I brain goes STRAIGHT to Wankel. When I FIRST learned about these decades ago, I CONFUSED THEM WITH WANKELS.}

All that said, when I see a video of one running, I *STILL* find it a bit difficult to believe how they operate...😊

[buzzz]

Thanks for video. I’ve wondered what changes were made to turn a rotary engine into a radial engine, besides the obvious changes? Any mechanical changes to engine to convert to radial engine? The gears ⚙️ look like planetary gears! Was all that was necessary was to bolt the case and free the crankshaft to convert from a rotary to a radial engine? I understand they added carb & values later, I’m asking about principles of converting rotary to radial. Thanks. When did conversion happen & who did it?

[supertrinigamer]

I've always been puzzled, how does the crankcase spin? Is it like how if you let a normal engine turn normally but if you hold the crankshaft, the crankcase decides to turn to make the effect of spinning pistons?

[manuelkong]

is this what would have been used on Fokker DrI?

[stuartdavies]

Are there drawings available for this? Thanks

[Sergecalifornia]

The French used to provide engine for the allies. British and American airplanes.

[sugarnads]

Wow...always wondered how a ww1 rotary worked...