Poul la Cour - Cable Guyed Masts from Wood



Poul La Cour Wandering Masts have been developed to serve as mobile instrument cariers, for non-permanent installations, e.g . for the prospection of the wind ressource for renewable energy projects.

Poul La Cour Wandering Masts are characterized by the following features:

The 25.5-m mast from this series may still be hauled on a conventional automobile roof rack (roof load under 75 kg including a conventional roof rack).

The wood from tall-growing trees, in particular the wood from some sorts of spruce and pine, is predestined for the use in small to medium size cable guyed masts. Their resilience, high fatigue endurance limit, excellent specific rigidity, and their nonlinear stress-strain relation make it a perfect material for slender structures under axial and combined loading. Despite the imperfections, knots, resin strata and deviations from the ideal cylinder, bars from these materials do compare favourably with light metall alloys and fibre compound materials.

Suitable tall-growing Black Forest saplings are selected, dried, and machined to dimension. Combined with simple stainless steel couplings they make up for an extremely slender and elegant mast system that has been named after the Dane Poul la Cour (1846 -- 1908), a hands-on wind energy pioneer and visionary advocate of wind/hydrogen energy systems. It is due to his initiative that the first generation of "wind electricians" has been trained in Denmark, during a period, where, in other places, the art of tapping the wind resource gradually fell into oblivion.

The two smallest of the Poul la Cour Wandering Masts, 10.0 and 13.0 m, are erected without any special tools or a crane even. The higher masts require an auxiliary mast, which is included in the shipment, and a light hand winch, which can be obtained as an option. The instrument boom, lightning rod, data logger stay and the complete cable rig is manufactured from stainless steel and is contained in the shipment. Pegs and foundation plate are from hot-rolled mild steel and included as well. The foundation plate is protected by paint.

Maywind Wandering Masts are dimensioned employing modern engineering techniques, such as the Finite Element Method, and in accordance with the applicable European and German codes and standards. Special care has been taken to avoid vortex-induced vibration which might damage the meteorological equipment or increase error. The wooden barīs ultimate strength under bending is regularily being tested.

Poul-La-Cour-Wandering-Masts are currently available for the heights:

and are roughly dedicated for the following tasks: Supplementary MAYWIND Products Alternative MAYWIND Products Related MAYWIND Services

Please e-mail to MAYWIND, for additional information. Or contact us via Mail/Fax/Phone at:

Wind Surveying Tools GbR
Alte Bahnhofstrasse 19
D - 77933 Lahr
Phone +49 - 78 21 - 98 37 20
Fax +49 - 78 21 - 98 37 21

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