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The construction plans

Scope of delivery
Each of the three construction plans available consists of six format DIN A3 sheets with a presentation of the individual parts as well as two sheets in the same format with the views i.e. cross-section of the complete engines. In addition there is are several pages of specifications containing part lists of all parts. There are also suppliers addresses listed for e.g. ball bearings, cogwheels or valve springs.
The plans are very precise and show all parts in a comprehensible form.

The plan for the 5-cylinder radial engine consists of 12 DIN A4 drawing sheets, additionally the bill of materials and construction information.

Many feedbacks including photos of engines constructed by customers confirm that they have been successfully reproduced. However, a lathe and milling machine is necessary for the manufacture.

Technical data of the 5-cylinder radial engine

Bore 24 mm
Stroke 22 mm
Capacity 50 ccm
Weight approx. 1900 g
Revolutions approx. 950 - 5500 1/Min.
Outer diameter approx. 225 mm
Width approx. -
Height approx. -
Length approx. 165 mm
Propeller size up to approx. 18x14 to 22x12 Zoll inch

Advises
Great emphasis was placed on being able to construct the parts on conventional machine tools. A CNC-milling machine was, however, very helpful in the making of the cam discs for the two radial engines. Furthermore, the two camshafts for the V-12 engine, which both consist of one piece, were manufactured on a copy grinder. Should you have any further questions after receipt of the construction plans, or more information is required, I will do my best to deal with this as quickly as possible.

Samples

The technical descriptions of the plans are optionally in German or English language.

All texts, pictures and drawings © by Martin Ohrndorf