HOMECOMPANYPRODUCTSNEWS & EVENTSCONTACT US Harbor Wing Technologies

SEA TRIALS

PROOF OF CONCEPT SPECIFIC RESULTS
Autonomous Wing-Sail Performance

At Go-To # AUSV Speed True Wind True Wind Angle Turn
Start 4.5 kts 15 kts 175 degrees jibe
1 7 kts 16 kts -62 degrees tack
2 4.5 kts 17 kts 39 degrees  
3 7.2 kts 17.3 kts 129 degrees jibe
4 6.6 kts 15 kts -133 degrees jibe
5 7.4 kts 17 kts 117 degrees  tack
6 4.3 kts 16.5 kts 42 degrees  
 
  • True wind increase to 22.3 kts; true wind angle decrease to 30.5 degrees
  • True wind increase to 25 kts with 30 kt gusts; apparent wind at masthead 40 kts; true wind angle decrease to 21.1 degrees; wave height increase to 6-7 ft
  • When approaching Go-To # 7, wind and sea state increase to sea state 5 - trials suspended by sea trials safety officer upon observing 40 kt apparent winds at masthead and increasingly heavy seas
  • AUSV return to port passing go-to # 7 and # 8 under wing-sail propulsion and joystick fly-by-wire control

 


Precision Control and Maneuvering - Sample of General Exemplary Performance
  • High precision GPS tracking
  • Cross-track error less than 5 meters
  • Sustained performance during 15 minute transit at 5-7 kt speed with 12-16 kt winds


A demanding "double diamond course" tested X1's ability to
sail against all points of the wind


Course Location and Layout
  • Open Ocean Waters
  • SE of Pearl Harbor
  • 10 + nautical miles cumulative track
  • Figure-eight course with pre-designated GPS go-to points
  • Line-of-sight radio to shore command and control station