Development of high-performance gasoline engines for model flights!

The task was to optimize the cooling air flow in the world record engine. Only through optimization in detail was it possible to generate 25 hp from a displacement of 310 cm³ and thus set the world speed record of 308 km/h. The knowledge gained in this way was transferred into series parts. Due to the high complexity, the high variety of variants and the resulting low quantities, the air ducts are still manufactured with the EVOlizer and sold as part of a complete solution.

The use of the EVO-lizer with KOLM Motoren

Printouts from the EVO-lizer are used in research and development at KOLM Motoren. According to DI Kolm, this is a fantastic opportunity to work much faster and more independently than with the CNC process. In addition, free-form parts with high complexity are also produced for series production using the EVO-lizer.

Solutions without compromises

Particular emphasis is placed on sophisticated and tried-and-tested solutions, both for standard parts and for all materials! There are absolutely no compromises that could come at the expense of the quality of the engines. Balancing weights made of tungsten for crankshafts, helicoil inserts for highly stressed threads, crankcases made of aviation aluminum, built crankshafts and needle-bearing steel connecting rods are used - so only the best of the best.

Furthermore, all highly stressed steel parts are hardened or nitrided. In addition, the Kolm Motoren are also subjected to a 100-hour endurance test and performance tested. An in-house performance test bench enables precise statements about the performance of the individual engines.

KOLM Engines – world market leader in large-volume four-stroke engines for model flying!

DI Johann Kolm (CEO of Kolm Engines) has put his company at the forefront of a market segment that involves designing and building 4-stroke gasoline engines for model making. The construction is carried out using a 3D CAD system, some of the data is transferred to the CAD/CAM system, and some of the parts are also programmed “manually”. The special thing about KOLM Engines is that everything happens in-house, from development to production of the individual parts, and all parts go through the most precise quality controls before they are installed. Of course, a parts or measurement report is just as obvious as registration using a serial number.

t the top of the world, every little detail counts.

DI Johann Kolm, Kolm Engines GmbH

Why is KOLM Engines world market leader?

You leave nothing to chance and make no compromises: “You get what you pay for!” is another motto of DI Johann Kolm! Kolm Engines are purely Austrian quality products as all development, testing AND production is carried out in-house. Furthermore, the engines are developed, manufactured and assembled by absolute specialists – all of whom are enthusiastic model pilots. This enormous depth of production and development results in a high level of expertise, flexibility and the highest quality.

Highest quality even for purchased parts: preferred suppliers from Austria and Germany make quality, reliability and delivery reliability possible.