Luna Rossa Challenge. AC 36

winchfodder

Super Anarchist
1,893
444
Carolina, USA
I see they have the torpedo foils.  Could have delayed the launch after seeing the AM foils!  They can only splash 6 foils and may have realized the NZ type foil was inferior?
Torpedo not a foil. Can't see the point unless to add some lead ballast or as structural support for the foils.

Do the Italian foils have less area than TNZ and AM. Seems to look like it.

As for hull shape if the aim is to sail the majority or all the race flying, then the Italian hull looks like more drag.

Also surprised that they are not using two different foil designs on either side. With the limit on the total number allowed seems a sensible  choice by TNZ

 
Last edited by a moderator:

hoom

Super Anarchist
6,398
528
Orkland
*ahem* I'll just leave this here



*hack splutter*

I thought it might be more subtle but didn't pick a sharp ridge like that :blink:

I feel that the idea of the central bulge must have been a concept that was shared one way or the other between TNZ & LR.

Maybe from personnel changes or as part of exploring the shapes possible within proposed rules?

 

Stingray~

Super Anarchist
13,699
3,790
PNW
from https://www.sail-world.com/news/222696/Americas-Cup-Luna-Rossa-launch-first-AC75

The Challenger of Record for the 36th America's Cup, Luna Rossa Prada Pirelli has launched their first AC75 in Cagliari, Sardinia.

The hull is a different design treatment than the first two launched by Emirates Team New Zealand and NYYC American Magic. The bow is reminiscent almost of an IACC yacht, with a very soft treatment, however about a third of the way back a crease starts in the hull which appears, from the video to develop into a bustle coming into a skeg-like structure in the centre of the transom, ending just ahead of the rudder.

(contd)

 
348
77
This will be a very interesting cycle.

Like the first cycle of the IACC when we saw, "short skiffs" (TNZ), "heavy/long/narrow" (USA) and the "aircraft carrier" (ITA).....  

Capture5.PNG Capture4.PNG

 

Horn Rock

Super Anarchist
3,254
1,810
Byron Bay
I see they have the torpedo foils.
The work on the Italian bulbs seems much cleaner than that of Defiant's which looked rather rough. May be the Italians have greater skill here? Hard to see any sign of a movable flap on their foils. Are they permitted to rotate the entire wing?

 

Rennmaus

Super Anarchist
10,691
2,291

Horn Rock

Super Anarchist
3,254
1,810
Byron Bay

Stingray~

Super Anarchist
13,699
3,790
PNW
we focused more on hydro-dynamism than on aspect of air performance ".

Hydrodynamics - the motion of fluids and the forces acting on solid bodies immersed in fluids.

Does this mean the Italians think the hull will be in the water more than the other teams?
Yes, that caught my eye too, interesting.

Another pic 

luna-rossa-AC75-2019-cagliari_05.jpg


 

17mika

Anarchist
974
243
Milan, Italy
we focused more on hydro-dynamism than on aspect of air performance ".

Hydrodynamics - the motion of fluids and the forces acting on solid bodies immersed in fluids.

Does this mean the Italians think the hull will be in the water more than the other teams?
The way I read his comment in italian is that it is about minimizing drag at takeoff, but not sure.

 
Top