ITALIAN QUICK-STEP
After a scheduled maintenance break for a week, the Luna Rossa Prada Pirelli Team assembled back in Cagliari to be greeted by perfect conditions that more than blew the cobwebs away out on the Bay of Angels. As Spring gets sprung in Southern Europe, the mercury hit 16 degrees Celsius in the late afternoon and the breeze built steadily from the south-east offering the Italians a sublime training session where they had the pedal to the floor as if they had never been away.
The team’s LEQ12 was thoroughly put through its paces at high speed with some dynamite board control. Interesting to see that the Italians seem to have perfected a technique of holding the windward foil in the water post tack with just the bottom part of the foil staying in the water before the final raise to the fully extended position to windward. This appears to give a better turning motion through the tack and then as the board is raised, the righting momentum that it offers at full extension, appears to induce the customary windward heel giving the boat maximum power out of the tack. It’s devastating to watch at high speed.
Midway through the session, the Chase Boat team threw down some marker buoys to give the LEQ12 something to aim at and Francesco Bruni, Ruggera Tita and Marco Gradoni took the intensity up another level, absolutely nailing the angles and then performing extremely fast bear-aways at the top mark with the flight controllers right on the limit, bringing the hull high on the foils at full, breathtaking acceleration. The on-water Recon Unit were positioned on the course and noted a nose-dive at the leeward mark that almost capsized the yacht, but a decent recovery saved the day and the team just kept on pushing.
Once again onboard pre-flight, a ballast man could be seen crossing to the windward pods to aid acceleration and take the pressure off the leeward foil before precariously dancing around the mast back to the safety of his leeward pod as the LEQ12 hit target speed. It isn’t pretty, it’s not a job for the feint-hearted, but it’s highly effective in these little foilers.
Martin Jacoby, the CFD Specialist Engineer for Luna Rossa Prada Pirelli was interviewed after a very entertaining sailing session and confirmed that few changes had been made to the set-up of the Italian LEQ12 in the past week, saying: “Last week was a week of maintenance, and this was a sailing day to do some checks that everything is doing good and that was the case, and we are very happy with that.” Asked about the new markers on the port side foil and possible changes to the foil identified by the Recon Team, Jacoby commented: “No, we were just doing some maintenance there and taking a better understanding of how the foil works and the flow behaviour.”
With regards the ubiquitous cameras positioned on the foils in recent sessions, the Italian CFD specialist hinted at the ability to replay against sailor feedback and simulation software with the benefit of seeing: “just how the foil goes through the water and if we see something we can check it on the recordings.”
Luna Rossa Prada Pirelli’s campaign continues in earnest this week and judging by their performance today, this is a team to really watch in this America’s Cup cycle. Michele Melis, the on-water Recon guru summed it up beautifully today saying: “they look quicker each day out on the Gulf.” He’s not wrong. (Magnus Wheatley)
On Water Recon Unit Notes: After a week of sailing break while undergoing some modifications on the LEQ12, the LRPP team opted for an early rollout at 6:00am seeking the forecasted light NW offshore breeze. With forecast update the rollout was postponed to 7:00am and, after stepping the mast, the team proceeded with some precise alignment checks on the cradled prototype followed by some hydraulic checks by the mast base region.
On the boat configuration side several changes were observed at the mast base fittings, on the inboard portside foil wing, flap and foil arm stock. As the daily temperature increased, the team scheduled the dock out at 1pm to catch the typical SE sea breeze between 8-12kn with some choppy sea state during the whole afternoon.
On the sail usage front, the team hoisted the primary mainsail M1-1, the J1.5-1 at first and finally the J2-1. The LEQ12 hosted four crew, swapping helmsmen and flight controllers.
Clearly the sailing session focussed on light to medium breeze manoeuvres and take-off capability in some choppy waves with the new boat configuration. The Chase Boat dropped some marks in the middle of the session and the prototype completed approx. 8 legs. The Recon Unit alternated between awaiting at marks with binocular observation in the distance and following for some legs.
A nose-dive was observed while rounding the downwind mark almost capsizing at low speed with a successful recovery. A total of approx. 40 manoeuvres out of which 19 tacks and 21 gybes were recorded along with some additional rounding manoeuvres such as classic round-ups, bearing away or heading up, early gybes, tack bear-aways, and round up tacks.
A total foiling time of approx. 80 minutes and 3 self-take-offs were recorded with the usual third crew member sitting on windward deck and crossing before taking-off building boat speed. Certainly, the LRPP LEQ12 looks quicker each day out in the Gulf. [Michele Melis AC-Recon]
Dock out: 1250 Dock-in: 1620
Onboard Today
Helms: Francesco Bruni / Ruggero Tita, Marco Gradoni
Crew: Andrea Tesei / Umberto Molineris / Vittorio Bissaro
Sails Used:
Mainsail (MN1-1S): 2 hours 45 minutes
J1 (J1.5-1): 55 minutes
J2 (J2-1): 1 hour 20 minutes
Total Tacks: 19 - 14 foil-to-foil, 5 touch & go
Total Gybes: 21 – 17 foil-to-foil, 3 touch & go, 1 touchdown
Recon Notes: approximate count due to alternated position of RU RIB on marks, observation with binoculars in distance. 3 Self take-offs: Foiling runs: 42, 21, 16.
Wind Strength: 13:30 SE 8-10kn/ 14:40 SE 10-12kn 21kn AM:17℃, sunny by midday. 16° and sunny by 1500.