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9-cylinder radial engine

There are detailed construction plans with specifications and parts list available for these engines. Ready made parts are available. For further information see below.

The engine can also be ordered as built engine at www.authenticscale.com (USA).

9 Zylinder-Sternmotor

View of the intake casing with carburetor and intake-manifolds Picture 2

Version 2 with open valve gear and unblackened cylinders and cylinder heads:
9 Zylinder-Sternmotor

More pictures of version 2
View of the intake casing with carburetor and intake-manifolds: Picture 2

Technical data of the engine

Bore 23 mm
Stroke 24 mm
Capacity 90 ccm
Weight approx. 4000 g
Revolutions approx. 950 - 5000 1/Min.
Valve diameter 9,5 mm
Valve lap 28 degrees KW
Outer diameter approx. 250 mm
Width approx. -
Height approx. -
Length approx. 140 mm
Propeller size up to approx. 26x10 inch

Test run-video of the engine
Depending on the speed of your internet connection it can take a few moments until the videos are available.

The construction plans

These engines can be reproduced exactly with the help of the construction plans available.

Extracts from construction plans

Please click to enlarge
Overall view and cross-section Overall view and cross-section Extrract from drawings of individual parts

Price for these construction plans: 50,00 €
For information about ordering see » Order.

Ready made parts available for this engine
» Ready made parts for 9-cylinder radial engine

All construction plans are protected by copyright. Copyright © 2004 (2005) by MARTIN OHRNDORF. The plans may not be copied or multiplied, or made available to third parties. The plans may not be stored on data carriers, knowingly or unknowingly. Parts or complete engines constructed using the plans are solely for private use. They may not be sold or used for commercial purposes. Legal action will be taken against anyone who violates these terms.

All texts, pictures and drawings © by Martin Ohrndorf