hwstowers@hwstowers.com | +34 943 598 469

HWS | San Sebastian · SPAIN

hwstowers@hwstowers.com | +34 943 598 469

HWS | San Sebastian · SPAIN

«How much does the Wind Energy learn from Wind Sailing (…and viceversa) ?» (HWS)

As along last decade, completely new wind boats like Americans Cup AC75 monohull vessels (*) are appearing, completely new concepts with an exceptional efficiency which allows to fly over the sea near to 100 Km/h, or even surpassing (∼104 Km) with a Windsurf (**).

(*) The newest American’s Cup AC75 are 75 feet (22.86m) keel-less yachts,  which rise out of the water on hydrofoils and glide across the surface to reach speeds in excess of 50 knots (93 Km/h).

The Challenger yacht “Luna Rossa” had maxed out at 53,4 knots (99 Km/h), (…) and Team New Zealand’s “Te Rehutai” is rumoured to be even faster.

(**) On Thursday, November 18, 2021, in Namibia, Mr. Bjorn Dunkerbeck (the famous Dutch & Canarian 52-year-old famous windsurfer) broke that speed barrier, hitting 103,67 Km/h over a two-second time gap, and holding an average speed of 101,00 Km/h kilometers per hour over a 100-meter stretch of water.

 

«HWS is proud to present the self-climbing AirCRANE»

After 3 years of work HWS has finished the demonstrator of the self-climbing AirCRANE, a 30 t net-lifting capacity unit. Once the technology/concept has been tested and validated, HWS is confident in scaling it up to 250 t or down to 5-10 t (for construction).

In this type of cranes two concept should be distinguished:

  • How it climbs.
  • How it anchors to the structure.

In the case of the AirCRANE:

➜ The climbing process is mechanical, based on three innovative devices which moves along the main girder. This innovative concept introduces the possibility  to climb along vertical surfaces with trunk transitions, irregularities, inclined walls, etc.

➜ The anchoring system is conducted by means of a pair of spikes that are inserted into some cavities left in the tower. A reliable anchoring can be assured relying mainly in gravity force.

In all climbing systems, both processes are innovative, and hence, patented. In AirCRANE:  WO2019002654 and ES201930707.

Find more information in this self-explanatory video:

This project (from March 1st, 2018,to October 31st, 2020) has been developed with the support of the European Commission under the grant program “Horizon 2020-SME-Instrument Phase 2, no. 804858” (https://cordis.europa.eu/project/id/804858).

The first AirCRANE unit has been manufactured in KEYTECH (AMOND GROUP) (https://www.keytech.es/)  (http://amond-group.com) facility, located in Lecumberri, SPAIN.

We would be happy to show it to interested professionals of the wind energy sector.

About BUOYANT CONCRETE II: «SHIPS. The GuTian, built in China in the 1970s»

«A derelict concrete ship called Gu Tian is seen at Mawei Economic Development Zone in Fuzhou, China.

The ship has been stranded for more than 30 years. Built in the 1970s, it is the largest cement ship in the world with a displacement of 5,773 tons, measuring 105.2 m-long and 14.5m-wide«

From (1): «Pictures of the day: 21 November 2012», TELEGRAPH.

Read more: (2) «The disappearing ship: Chinese liner made of CEMENT is demolished» (Dailymail.co.uk)