Plan: 14 Cylinder Double Row Engine


Construction plan of the 14 Cylinder Double Row Engine by Martin Ohrndorf

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Order here the construction plans for your replica of the 14 Cylinder Double Row Engine!

The construction plan 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 are several sheets of specifications containing part lists of all parts. There are also supplier addresses listed for e.g. ball bearings, cogwheels or valve springs.

The plan is very precise and shows all parts in a comprehensible form. A lot of feedback including photos of engines constructed by customers confirm that they have been successfully reproduced.

However, a lathe and milling machine is necessary!

Technical data of the engine

Bore 20 mm
Stroke 22 mm
Capacity 97 ccm
Weight approx. 4300 g
Revolutions approx. 900 – 4500 1/Min.
Valve diameter 8,5 mm
Valve lap 60 degrees KW
Outer diameter approx. 235 mm
Width approx.
Height approx.
Length approx. 195 mm
Propeller size up to approx. 28×10 inch

The engine is a multi-cylinder 4-stroke glow igniter, which was developed by myself. Except for the carburetors, no parts from other engines were used, each component is my own design.

The engine is air-cooled and operates with mixed lubrication (methanol and synthetic oil). It is designed as an aircraft engine, but is not based on any particular model.

Videos of the engine

Videoclip No. 1 – Test-run video

Videoclip No. 2 – Construction and component parts of the engine

Images of individual parts

Additional information


English labels, German labels


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