Some figures


1950-1955 : The prototypes
The choice of the site
Access to the site
Establishment of the site
The team
Design features
The wind turbine commented
Sights on the wind turbine
Close-ups on the wind turbine
The research station
The tilting of the wind turbine
1959: Record of production
Disassembling the generator
Some figures
1966: the scraping
Remains of the wind turbine
Great power wind turbines
Where are the archives?
Lucien Romani
L. Romani & l'O.N.E.R.A.
The wind turbine & N.A.S.A.
French wind links
Legal notice
Site map
Who am I?
Date   Event
1950-1955   Project study, previous experiments on the wind generator 10 KVA to the wind tunnel at Chalais-Meudon(O.N.E.R.A.), Saint-Cyr l'Ecole and at the wind tunnel of the Ecole Nationale Supérieure de Mécanique et d'Aérotechnique at Poitiers.
January 1, 1955   Pierre Jean Cavey is recruited to the BEST by Lucien Romani.
December 1955   First civil works in the field of Nogent-le-Roi

Assembly and erection of the wind rurbine by the Société des Monteurs-Levageurs.

April 1957   First start without fairing.
November 1957   First connection to the EDF network. The wind turbine is not yet streamlined and all measuring equipment are not yet in place.
June 19, 1958  

Tilting of the wind turbine for fairing.

September 23, 1958   The wind turbine is complete with all its equipment.
October 27, 1959 shortly after 11:15 pm   Production record (1025 KWh) is almost twice the power rating (650 kWh).
April 30, 1960   Pierre Jean Cavey leave the BEST. Marc Léguillette succeede to him.
April 12, 1962   Establishment of a new set of blades expected to be faster.
During 1962  

Rupture of a blade when testing a new faster propeller. Stop of trials.

During 1962   EDF stops funding for research on wind energy.
May 1966   The wind turbine is scrapped.
Caractéristiques techniques
Name   Value
Rated power   800 KVA or 870 hp or 650 kWh.
Peak power   1025 KW(October 27, 1959).
Height (blade tip)   46 meters.
Height of the propeller axis   31 meters.
Diameter of the propeller   30.19 meters
Height of the pivot   20 meters (including the portion in the tripod).
Height of the tripod   16 meters.
Length of the nacelle   11.420 meters.
Height of the nacelle   2 meters.
Diameter of the cap   3.160 meters.
Mass of the propeller and of the nacelle   30 tons.
Mass of the pivot   20 tons.
Mass of the tripod   100 tons.
Total mass   150 tons.
Mass concrete foundations (North)   150 tons each.
Mass of concrete block (South)   100 tons.
Type of propeller   Tri-blades fixed-pitch and structure of airplane wing.
Operation   « Windvane » mode, propeller rearwardly relative to the direction of the wind.
Length of each blade   15 meters (to be compared to the wingspan of a Douglas DC3 which is 28.90 meters).
Rated rotational speed   47 rounds/minute then 71 rnds/min with the second propeller
Rated speed to the blade tip   74 m/second or 266 km/hour with the first propeller and 112 m/sec. (402 Km/h) with the second propeller.
Maximum speed (record)   100 m/second or 360 km/hour at the blade tip (27 October 1959 the first propeller).
Minimum wind speed needed   Beauforts 2.5 ie 4.6 knots or 8.5 km/h or 2.35 m/sec.
Maximum wind speed supported   7 beaufort (record of 27 October 1959) at 33 knots or 61 km/h or 17 m/sec.
Type of the alternator   6-pole synchronous.
Alternatorr voltage   3000 volts to 15,000 volts transformed for the connection to the EDF network.
Speed ​​of the alternator   1000 rev / min (regulated by the frequency of 50 Hz of the EDF network).
Real running time   5400 hours (with the first propeller only).
Optimal performance   85% of the Betz limit.
tilting   1 hour and 15 minutes.
Winches   Mine type used in tension or restraint.
Massive winches   25 m3 of concrete.
Cables   Mine type 6 and 8 strands. 40 mm in diameter.
Workforce   Seven people plus two permanent guards.
Lot size   2.5 hectares.

Last update: Mar-01-2019 13:35:53 CET

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