Germany's use of Gnome engine

Does anyone know which German aircraft might have used a Gnome (100hp) engine? Was there a supply of foreign built engines in Germany at the start of the war, or would it be just be an engine that had been captured?

Dave:
The 100 hp Gnôme Delta was built under license by Oberursel U.I. Some of the machines that used this engine was Fok.E.II/III, Fok.M.10z, M.17, Fok. V.1, Fok. D.II, Fok. D.V, Euler D.II, Gotha LD1a, Gotha LD5, Gotha WD1, Pfalz E.II/E.III and probably some other aircraft. It is highly unlikely that any of the Gnôme Delta engines were aquired after 1 August 1914.
Blue skies,
Dan-San Abbott

[Shooter]

Dan-San:

Did not Oberursel also make the rotory engine that powered the Fokker Dr-1? Was that the same mill or or a different one?

Shooter sends

[Dan_San_Abbott]

Shooter:
I am glad you have your home back, I know how you felt, I went through a similar experience in 1951. I would not wish it on my worst enemy.
Oberursel did manufacture the 110 Ps LeRhône under license as the 110 Ps Oberursel Ur.II.
Blue skies,
Dan-San Abbott

Shooter,

yes, that was the same "mill". Named after the (small) city just north of Frankfurt, where it was located. Build (under license) different Gnome engines first (7 cyl as U 0, 9 Cyl as U I, 14 cyl as U II). After these were no longer adequate, production was stopped, and the Le Rhone 9 cylinder was copied (slightly modified)as the Ur II (not the small "r" to notify the Le Rhone). The later Ur III was an original 11 cyl development based on the Ur II.

The Oberursel engine works were actually a rather small operation, and the limited supply of these engines was one of the contributing factors for the quantities of Fokker Dr I's, D VI and E V ordered.

Volker

[Droops]

Dan,

Your list here contains some types with which I'm not familiar. I recognize about half of them, but the other half I do not. Could you tell me please what the Fok.M.10z, M.17, Fok. V.1, Gotha LD1a, Gotha LD5, and Gotha WD1 were? Are some of these seaplanes? Others prototypes or very low production figure planes?

I'd love to know the source of the information too, if that's available.

VBR,

John

Were both the Oberursel Ur.III and 150 hp. Le Rhone (St) basically the same design? I've not seen any photos of the Ur.III. I know that in Austro-Hungary Steyr produced the 150 hp 11 cylinder rotary that is referred to as a Le Rhone in their literature and on the back of photos that sounds very similar. (I always wondered why Germany didn't swap with them for those?) The rotary program in Germany was investigating various engine types. Goebel Goe.III, Oberursel Ur.III, Siemens-Halske Sh.III, (The Siemens-Halske Sh.III seems to be the most successful of these...I'd like to know why? Performance, lubrication problems with Voltol, reliability, metallurgy?) It is interesting to note that(Oest)Aviatik kept developing interceptor concepts to use rotaries despite the lubricant shortage.

I was reading an old German article on the Siemens-Halske Sh.I that someone had sent me. From all appearances and what the article says this was also based on the Gnome 100 hp nine-cylinder with a single valve for intake and exhaust per cylinder. This was the first counter rotary that Siemens-Halske built and it appeared in the few examples of the Siemens Eindecker that were built and the Siemens-Schuckert D.I/Ia that was closely based on the Nieuport 17. The gearbox that managed the contra-rotating propeller was between the whirling mass and the propeller. It must have been a bear to adjust! I'd like to know how they did it? I have also read/heard that they were experimenting with a Schwade supercharger to get 140 hp out of the Sh.I engine.

[Dan_San_Abbott]

John:
I would most heartily recommend that you aquire "GERMAN AIRCRAFT OF THE FIRST WORLD WAR" by Peter Gray & Owen Thetford. It has not been surpassed yet, 1st edition was printed in 1962 and the 2cd in 1970.
1. Fok. M.10z, (Fok. B.II) 2 seat , two bay biplane recce machine.
2. Fok. M.17, a small single seat single biplane fighter used by the Austrians.
3. Fok. V.1, A single seat twin MG fighter with thick plywood covered canilever wings.
4. Gotha LD1a a2 bay, 2 seat recce machine built in 1915. I believe it was used as a trainer.
5. Gotha LD5. A small single seat , 2 bay biplane, used as a cavalry scout.
6. Gotha WD1 a pre-war 2 seat ,3 bay biplane float plane with 2 floats. Used for coastal patrol work early in the war.
The Fok. M10z was made in small numbers and saw service in 1914-15.
The Fok. V.1 was an experimental design, only one built to explore cantilever wings.
Blue skies,
Dan-San Abbott

[Dan_San_Abbott]

Aaron:
The Sh.IIIa engine was more successful than the others because it became operational in the SSW. D.III,SSW.D.IV and the Pfalz D.VIII. The Oberursel UR.III and the Goebel Geo.III were too late. The 145 Ps 11 cylinder Oberursel UR.III was intended to engine the Fok. E.V . However the two engines were not ready and the E.V was engined with the 110 Ps Ur.II. Too bad, the deck was stacked against tghat machine. The other reason the Sh.IIIa was successful was the lower engine torgue, being a bi-rotary and the low rpm improved propeller efficientcy. We will have alot of things to talk about Aaron at San Diego in September.
Blue skies,
Dan-San