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Posted (edited)

Have a look at this camel takeoff.

 

 

Edited by BrendAn
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Posted

They use a 'BLIP' switch to control the Power.  The entire motor rotates with the Prop  at about 1100 RPM. Lots of Gyroscopic precession. Nev

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Posted

The Blip switch cuts the Ignition when you want reduced Power. Later Motors have throttle control (as Normal). The fuel enters through the Hollow crankshaft since the entire engine rotates with the Prop attached to it These motors used Copious amounts of Castor (vegetable) Oil and was the originator of (Wakefield) CASTROL Oils.. The Camel was difficult to fly as it turned Much more Rapidly in one particular direction due the Large gyroscopic Precession effect of the Motor . Once Pilots got used to it, It was used to advantage in aerial combat.  Nev

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Posted

It's very rare to even see or Hear one of these "proper" Rotaries running. I'm surprised nobody seems Interested..  They DO this sort of thing in New Zealand where they really punch above their weight. There's a great Museum in Christchurch  with Knowledgeable people to show you around. It wasn't affected by the Earthquake, Luckily.  Nev

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Posted

They use to fire one up at the engine start up days at the aircraft museum in Port Adelaide. Not sure if they still do.

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Posted

Generally speaking, it's not a good idea to fire up engines without thoroughly Warming them up which is usually about one hour in the air.. There are ways of putting clean air through radials Mainly in how you shut them down. They have a lot of flywheel effect..  Nev

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Posted
On 10/05/2026 at 1:56 PM, facthunter said:

It's very rare to even see or Hear one of these "proper" Rotaries running. I'm surprised nobody seems Interested..  They DO this sort of thing in New Zealand where they really punch above their weight. There's a great Museum in Christchurch  with Knowledgeable people to show you around. It wasn't affected by the Earthquake, Luckily.  Nev

there was someone in nz building gnome replicas that were supposed to be an excellent engine from what i read but i can't find the company any more, or remember the name.

Posted

Fair chance they will still Build one but it wouldn't be a good way to become rich. Nev

Posted
1 minute ago, facthunter said:

Fair chance they will still Build one but it wouldn't be a good way to become rich. Nev

look up kip aero.  i agree but what a wonderful looking engine

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Posted

The Kip Motor Company, builder of the Sopwith replicas and the Gnome Monosoupape reproduction engines, is based in Dallas, Texas, not NZ. I hate to think what they cost.

Posted
8 minutes ago, pmccarthy said:

Classic Aero also make them in New Zealand, very successful.

Same thing  . Kip aero sell the csm engine from NZ .

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Posted
7 hours ago, onetrack said:

The Kip Motor Company, builder of the Sopwith replicas and the Gnome Monosoupape reproduction engines, is based in Dallas, Texas, not NZ. I hate to think what they cost.

Really. 

Posted
9 hours ago, onetrack said:

The Kip Motor Company, builder of the Sopwith replicas and the Gnome Monosoupape reproduction engines, is based in Dallas, Texas, not NZ. I hate to think what they cost.

Their Sopwith Pup kit is 130k - without engine or, as far as I can tell, fabric.

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Posted

The engines are built by Classic Aero Machining Service in Blenheim NZ. Kipaero sell them depending on the model from between $US50,000 & $US72,000. The expensive one has an electric start which defeats the purpose IMHO.

 

https://www.kipaero.com/product-category/rotary-engines/

 

https://www.kipaero.com/aero-engines/gnome-rotary-engine/

 

 

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Posted

Like seeing the dark night run.  Like starting connie after dark, saw it started at Bundaberg back in the late 90's.

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Posted
On 11/05/2026 at 10:10 PM, onetrack said:

The Kip Motor Company, builder of the Sopwith replicas and the Gnome Monosoupape reproduction engines, is based in Dallas, Texas, not NZ. I hate to think what they cost.

So eager to prove people wrong you don't read their posts

Posted (edited)

The Monosoupape is one of the simpler Rotaries of the Period . The exhaust port is directly open to the Air and ingests AIR immediately after exhausting to which an overly rich fuel-Air mix is added. There are many other brands around. Clerget, Siemens-Halske, Bentley.   After WW1 the rotary concept was dropped. in favour of static/fixed. Motors.  The rotaries used Windage to aid cooling which was inefficient. Nev

Edited by facthunter
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