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Zündapp DB 200

FIELD INFORMATION AGENCY

I have been privileged to see report, which was lent to me by two of our the Smith brothers of Newbury many thanks to them). It the whole of the German motorcycle but I thought that you might be in those aspects of the report deal specifically with two It gives an insight into the of the industry before the war and the state of at the end.

Those comments in are lifted directly from the

INTRODUCTION

‘This investigation of the Motorcycle Industry was undertaken to certain specific information as as to get an up-to-date picture of the industry and out any interesting developments in progress the beginning of the war.’ ‘Further was desired by the (U.S.) Motorcycle explaining the relatively big civilian reputedly enjoyed by D.K.W. Union) and other manufacturers, and the technical achievement of the German equipment made by BMW and NSU. The of this equipment in international in England and on the Continent was of special to American industry.’ ‘Since the German motorcycle design was affected by three things: the plan for getting German into foreign markets, the of automobile manufacturing manpower, and the of motor fuel and materials.’ first force, the desire to get goods into foreign affected the international racing ‘International competition on the continent was even as late as 1941 the intention of keeping Germany in the light.’ ‘The shortage of manufacturing manpower due to the army men, and the diversion to war industries the motorcycle very important to life’.

Manufacturers lines out to contain fewer models’. that tooling would more machines with effort.’ ‘The shortage of fuel was important also. of materials such as steel the small motorcycle quite The medium light two … far outsold all other models and the designs of late models by Triumph, Ardie, Victoria, and others indicate keen of design from an appearance

The Report then goes on to each manufacturer in turn and the extracts show those which relate to two … This section goes the heading:

‘SYMPOSIUM OF THE MOST DESIGNS BY MANUFACTURER’ ‘This does not discuss all of the models in Germany, but includes those known and most important. The section’. ‘is representative that no information was available the D.K.W. factory of Auto in Zochopau which is in the Russian zone.’

(Because of this the of the report misses the one design had the most influence on 2 … in the UK and the USA — the DKW pre-war RT 125.)

1

There is a large section but nothing on two strokes.

2 ‘N.S.U. Fahrzeugwerkw A.G.’ Models discontinued:

Model Quick 98 motorbike

Model 201 ZDB 198 c.c. motorcycle. Models continuing the

Model 125 ZDB light motorcycle, 2 with Wolf system of and flat top piston.’

(and four strokes)

3. ‘Zundapp-Werke G.m.b.H. Nurnberg’ ‘Model DB Displacement 198 c.c. Single flat top piston (Schneurle) power plant.

Electrical DC generator (on crank shaft) ignition as unit (Noris) battery.

Model DBX 250. 247 c.c. otherwise same as DB 200.’ ‘Of the two smaller 2 models, the 200 c.c. model outsold all the others. The company over 200,000 of these in ten

It sold better than the and it is said that this is in Germany an operator’s license is not for models of 200 c.c. and under.’ 4. Werke S.G. Nurnberg’ motorcycles produced before the war up a line of six basic models.

These included the Saxonette 60 motor wheel driven two 98 c.c. models, a 150 c.c. a 200 c.c. model and a 250 c.c. model with inverted exhaust pipes.’ ‘The motor wheel was purchased the Fichtel Sachs Company. model was discontinued because it go fast enough and cost too The Company is developing a neat bicycle motor for attachment to any (This) is a 38.5 c.c. cylinder 2 … with top piston of Victoria design, magneto, and with chain to rear wheel. The motor to rear of frame next to the wheel.’



5. ‘Ardie Werke Nurnberg’. ‘In 1938 the Company listed 12 models in line. These included l00 c.c. models, four 125 models, four 200 c.c.

The Ardie plant has been bombed out and catalogues and drawings of old were not available. There was difficulty in obtaining the information at this factory due to the disorganised here.’ ‘Each year 1938 the number of models was until the line in 1942 only two items, a 125 c.c. and a 125 c.c. stationary motor.’ VF 125 has displacement of 123 c.c. two … flat top piston in an aluminium unit power plant.

The is placed on the engine drive A D.C. Noris generator is on the other end of the crankshaft and a battery is 6. ‘Standard Fahrzeugfabrik, Plochingen’ company has been producers of:

3 wheeled trucks (watercooled)

4 wheeled trucks (air

Two … and four …

Power hand grain ‘The three wheeled are front wheel drive. employ twin cylinder 2 motors made by ILO in Hamburg, chain final drive to the wheel. The entire engine and are mounted on the unsprung front and swing when steering.’

The only 2 … from firm was the

‘2 cycle telescopic fork (no damping), 4 foot shift, hand center stand, flywheel charging battery.’ ‘The two model is unique in construction in it has a telescopic fork, grease with internal compression barrel springs. No damping is The saddle is mounted on a leaf coming back out of the gas tank and incorporates a rubber saddle BMW.’ 7. ‘Triumph Werke

Nurnberg’ ‘The Triumph since 1939 have two models with 125 c.c. and the new 250 two … motors. Since 1000 2 piston machines produced for civilians and 12,000 for the In normal times 10,000 to per year were produced of the 2 cycle model, this for 10 ‘Also of interest at Triumph some designs that had not been in production. They are an piston two …, 4 combustion air cooled Vee engine designed for the caterpillar tractor, and an airborne which was never built.’

The cycles were:

‘Model A 125 c.c. 1 cylinder 2 …, piston light motorcycle. The employs the Wolf pitchfork system with flat top

‘Model B.C. 250, produced since 1939, 248 double cylinder with combustion chamber, employs a driven rotary inlet turning at crankshaft speed.’

airborme scooter was to be a knockdown to use up a minimum of shipping space in

The outline specification was:

30mph

Cruising range: 180

Weight: 132lbs

Engine: 125cc

Load 300lbs

Tyre size: × 7.

8. ‘Steyr Daimler A.G. Graz, Austria’ Company is the result of the Steyr refinancing the Daimler Co. and the Puch Co. The Company became Austria’s manufacturer of motorcycles.

The motorcycle has known for its use of the uniflow single chamber double piston 2 engine later used by Triumph in Nurnburg.’ ‘The of this company contained production machine tools, of all but 5,000 were taken by the Russians. It is claimed that in 12,000 motorcycles were ‘Model 125 has a displacement of 124 c.c. It is a 2 double piston single chamber design, petroil

A crankshaft mounted DC generator battery ignition is used. The has one cylinder behind the other, the turning in the same plane but in the direction to the wheels.’ ‘Model 250 S4 has a of 248 c.c. The engine is a two … piston design with a combustion chamber.

Zündapp DB 200
Zündapp DB 200

It has a Y shaped rod on one crank pin. 9. Fichtel and ILO ‘The Fichtel Sachs made motorcycle engines and ball bearings and clutches. It was of this that many air were made against with resulting demolition of the including the motorcycle plant.’ ILO company had two plants, one in Hamburg and one in close by. The Hamburg plant has pretty much damaged.’

Sachs engines include:

Saxonette a motor wheel for the Company

Model 74 c.c. motor (2 versions)

Model 98 for motorcycles (2 versions).’ ILO ‘This has produced motors as follows for the industry:

Types F-60H and Displacement 60 c.c. for attachment to motorcycles

Types FM 100 and FM 120K. are 2 … 98 c.c. and 118 c.c.

This concludes the review of The final sections may be of interest (if you stuck with us so far).

OF 2 STROKE SCAVENGING METHODS has been much effort in devoted to research and development on systems for 2 … engines, large diesel engines and gasoline ones. One of the best systems is the Schneurle flat top method developed since by Dr. Schneurle.’ ‘The Schneurle were so far reaching that effort has been stimulated to them and this has produced scavenging methods, they

1. Deflector piston scavenging

2. flat top piston scavenging

3. Pitchfork scavenging as used by

4. 4 port as used by Ardie

5. The 3 as used on the Victoria bicycle

6. 2 Piston uniflow (folded design developed by Puch’

general purpose of the flat top is to avoid the poorly shaped chamber and hot-spot arising the deflector piston design.’ figures obtained, the 2 piston engines with common chamber as used by Puch and give the best economy.’

economy of manufacturing cost to be one of the primary purposes of using 2 engines on motorcycles in Germany the inlet valve is not used much.’

There then a long section on the various to find a design which not come within the Schneurle The final section of the report is:

OF INFORMATION OBTAINED DUE TO PRESENT IN GERMANY ‘The foregoing is as complete as it could be made, into consideration the changes war has imposed.’ ‘Very few production and factory layouts are still for study, except as they used for special military The dispersal policy has also in shifting a great deal of the into innumerable smaller For example, BMW is claimed to have had 50 dispersal plants.’ ‘The by slave labourers while the was still in action against the resulted in considerable loss of In many cases drawings and records had been hidden in and caves for safety and the personnel in the plants is unable to locate

The report fizzles out at this drawing no final conclusions. The picture that I get is of a major before the war reduced to a hole and operation in tatters from to meet the demands of the German war Everyone will find own points of interest, I hope, but two strike me:

There obviously was development amongst the German of 2 … engines, and lots of to find the best system for the mixture in and the exhaust out. about the work of Walter in the early 1950s at MZ, I would that the climate of experimentation was in the minds of development engineers.

The message that keeps up through the report is the huge of machines produced, for example to 15,000 per year from Werke and 20,000 per year Zündapp.

Where are they

This article was first in the January/February 2001 edition of The . the magazine of the British Two Stroke .

Zündapp DB 200
Zündapp DB 200
Zündapp DB 200
Zündapp DB 200

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